diff --git a/package.json b/package.json
index fdffdb2c36..dae4e2a415 100644
--- a/package.json
+++ b/package.json
@@ -8,10 +8,10 @@
     "packages/*"
   ],
   "resolutions": {
-    "@polkadot/api": "^1.9.0-beta.11",
-    "@polkadot/api-contract": "^1.9.0-beta.11",
+    "@polkadot/api": "^1.9.0-beta.12",
+    "@polkadot/api-contract": "^1.9.0-beta.12",
     "@polkadot/keyring": "^2.7.0-beta.8",
-    "@polkadot/types": "^1.9.0-beta.11",
+    "@polkadot/types": "^1.9.0-beta.12",
     "@polkadot/util": "^2.7.0-beta.8",
     "@polkadot/util-crypto": "^2.7.0-beta.8",
     "babel-core": "^7.0.0-bridge.0",
@@ -36,7 +36,7 @@
     "@babel/core": "^7.9.0",
     "@babel/register": "^7.9.0",
     "@babel/runtime": "^7.9.2",
-    "@polkadot/dev": "^0.51.8",
+    "@polkadot/dev": "^0.51.9",
     "@polkadot/ts": "^0.3.14",
     "@types/bn.js": "^4.11.6",
     "@types/chart.js": "^2.9.16",
diff --git a/packages/apps/package.json b/packages/apps/package.json
index 0bc08e1392..e202471e5c 100644
--- a/packages/apps/package.json
+++ b/packages/apps/package.json
@@ -15,7 +15,7 @@
   "dependencies": {
     "@babel/polyfill": "^7.8.7",
     "@babel/runtime": "^7.9.2",
-    "@polkadot/dev": "^0.51.8",
+    "@polkadot/dev": "^0.51.9",
     "@polkadot/react-components": "0.40.0-beta.191",
     "@polkadot/react-signer": "0.40.0-beta.191",
     "query-string": "^6.11.1"
diff --git a/packages/apps/src/Apps.tsx b/packages/apps/src/Apps.tsx
index 4ca2d4a6bd..6f975b69c6 100644
--- a/packages/apps/src/Apps.tsx
+++ b/packages/apps/src/Apps.tsx
@@ -29,6 +29,10 @@ interface SidebarState {
 
 export const PORTAL_ID = 'portals';
 
+function saveSidebar (sidebar: SidebarState): SidebarState {
+  return store.set('sidebar', sidebar);
+}
+
 function Apps ({ className }: Props): React.ReactElement<Props> {
   const { systemChain, systemName } = useApi();
   const [sidebar, setSidebar] = useState<SidebarState>({
@@ -38,24 +42,17 @@ function Apps ({ className }: Props): React.ReactElement<Props> {
     ...store.get('sidebar', {}),
     isMenu: window.innerWidth < SIDEBAR_MENU_THRESHOLD
   });
-  const uiHighlight = useMemo((): string | undefined =>
-    getSystemChainColor(systemChain, systemName), [systemChain, systemName]
+  const uiHighlight = useMemo(
+    (): string | undefined => getSystemChainColor(systemChain, systemName),
+    [systemChain, systemName]
   );
-  const { isCollapsed, isMenu, isMenuOpen } = sidebar;
 
-  const _setSidebar = useCallback(
-    (update: Partial<SidebarState>): void =>
-      setSidebar((sidebar: SidebarState) =>
-        store.set('sidebar', { ...sidebar, ...update })
-      ),
+  const _collapse = useCallback(
+    (): void => setSidebar((sidebar: SidebarState) => saveSidebar({ ...sidebar, isCollapsed: !sidebar.isCollapsed })),
     []
   );
-  const _collapse = useCallback(
-    (): void => _setSidebar({ isCollapsed: !isCollapsed }),
-    [isCollapsed]
-  );
   const _toggleMenu = useCallback(
-    (): void => _setSidebar({ isCollapsed: false, isMenuOpen: true }),
+    (): void => setSidebar((sidebar: SidebarState) => saveSidebar({ ...sidebar, isCollapsed: false, isMenuOpen: true })),
     []
   );
   const _handleResize = useCallback(
@@ -64,15 +61,18 @@ function Apps ({ className }: Props): React.ReactElement<Props> {
         ? SideBarTransition.MINIMISED_AND_EXPANDED
         : SideBarTransition.EXPANDED_AND_MAXIMISED;
 
-      _setSidebar({
+      setSidebar((sidebar: SidebarState) => saveSidebar({
+        ...sidebar,
         isMenu: transition === SideBarTransition.MINIMISED_AND_EXPANDED,
         isMenuOpen: false,
         transition
-      });
+      }));
     },
     []
   );
 
+  const { isCollapsed, isMenu, isMenuOpen } = sidebar;
+
   return (
     <>
       <GlobalStyle uiHighlight={defaultColor || uiHighlight} />
diff --git a/packages/apps/src/Content/Status.tsx b/packages/apps/src/Content/Status.tsx
index 49e3fc8fbc..80a0407609 100644
--- a/packages/apps/src/Content/Status.tsx
+++ b/packages/apps/src/Content/Status.tsx
@@ -74,7 +74,7 @@ function Status ({ optionsAll, queueAction, stqueue, txqueue }: Props): React.Re
     const filtered = filterEvents(allAccounts, t, optionsAll, events);
 
     filtered && queueAction(filtered);
-  }, [allAccounts, events, optionsAll]);
+  }, [allAccounts, events, optionsAll, queueAction, t]);
 
   return (
     <StatusDisplay
diff --git a/packages/apps/src/SideBar/Item.tsx b/packages/apps/src/SideBar/Item.tsx
index 9afb305d8a..aadf9e07d6 100644
--- a/packages/apps/src/SideBar/Item.tsx
+++ b/packages/apps/src/SideBar/Item.tsx
@@ -74,30 +74,31 @@ function checkVisible (name: string, { api, isApiReady, isApiConnected }: ApiPro
 }
 
 function Item ({ route, isCollapsed, onClick }: Props): React.ReactElement<Props> | null {
-  const { Modal, useCounter = DUMMY_COUNTER, display, i18n, icon, name } = route;
   const { t } = useTranslation();
   const { allAccounts, hasAccounts } = useAccounts();
   const apiProps = useApi();
   const sudoKey = useCall<AccountId>(apiProps.isApiReady && apiProps.api.query.sudo?.key, []);
   const [hasSudo, setHasSudo] = useState(false);
   const [isVisible, setIsVisible] = useState(false);
-  const count = useCounter();
+  const count = (route.useCounter || DUMMY_COUNTER)();
 
   useEffect((): void => {
     setHasSudo(!!sudoKey && allAccounts.some((address): boolean => sudoKey.eq(address)));
   }, [allAccounts, sudoKey]);
 
   useEffect((): void => {
-    const isVisible = checkVisible(name, apiProps, hasAccounts, hasSudo, display);
+    const isVisible = checkVisible(route.name, apiProps, hasAccounts, hasSudo, route.display);
 
     route.isIgnored = !isVisible;
     setIsVisible(isVisible);
-  }, [apiProps, hasAccounts, hasSudo]);
+  }, [apiProps, hasAccounts, hasSudo, route]);
 
   if (!isVisible) {
     return null;
   }
 
+  const { Modal, i18n, icon, name } = route;
+
   const body = (
     <>
       <Icon name={icon} />
diff --git a/packages/apps/src/WarmUp.tsx b/packages/apps/src/WarmUp.tsx
index 745e15a581..7c629d21fc 100644
--- a/packages/apps/src/WarmUp.tsx
+++ b/packages/apps/src/WarmUp.tsx
@@ -16,6 +16,7 @@ function WarmUp (): React.ReactElement {
 
   useEffect((): void => {
     setHasValues(!!fees || !!indexes || !!issuance || !!registrars || !!staking);
+  // eslint-disable-next-line react-hooks/exhaustive-deps
   }, []);
 
   return (
diff --git a/packages/page-123code/src/AccountSelector.tsx b/packages/page-123code/src/AccountSelector.tsx
index 81209d303f..de34e60905 100644
--- a/packages/page-123code/src/AccountSelector.tsx
+++ b/packages/page-123code/src/AccountSelector.tsx
@@ -15,7 +15,10 @@ interface Props {
 function AccountSelector ({ className, onChange }: Props): React.ReactElement<Props> {
   const [accountId, setAccountId] = useState<string | null>(null);
 
-  useEffect((): void => onChange(accountId), [accountId]);
+  useEffect(
+    (): void => onChange(accountId),
+    [accountId, onChange]
+  );
 
   return (
     <section className={`template--AccountSelector ui--row ${className}`}>
diff --git a/packages/page-accounts/src/Accounts/Account.tsx b/packages/page-accounts/src/Accounts/Account.tsx
index 475edb0143..5c609c4d4a 100644
--- a/packages/page-accounts/src/Accounts/Account.tsx
+++ b/packages/page-accounts/src/Accounts/Account.tsx
@@ -71,7 +71,7 @@ function Account ({ address, className, filter, isFavorite, toggleFavorite }: Pr
     } else if (nickname) {
       setAccName(nickname);
     }
-  }, [info]);
+  }, [api, info]);
 
   useEffect((): void => {
     const account = keyring.getAccount(address);
@@ -84,7 +84,7 @@ function Account ({ address, className, filter, isFavorite, toggleFavorite }: Pr
     });
     _setTags(account?.meta.tags || []);
     setAccName(account?.meta.name || '');
-  }, [address]);
+  }, [address, _setTags]);
 
   useEffect((): void => {
     if (filter.length === 0) {
diff --git a/packages/page-accounts/src/Accounts/modals/Derive.tsx b/packages/page-accounts/src/Accounts/modals/Derive.tsx
index 35514d6b21..e6ed0dece1 100644
--- a/packages/page-accounts/src/Accounts/modals/Derive.tsx
+++ b/packages/page-accounts/src/Accounts/modals/Derive.tsx
@@ -92,14 +92,14 @@ function Derive ({ className, from, onClose }: Props): React.ReactElement {
       const deriveError = deriveValidate(debouncedSuri, source.type);
 
       if (!deriveError) {
-        const result = source.derive(suri);
+        const result = source.derive(debouncedSuri);
 
         address = result.address;
       }
 
       return { address, deriveError };
     });
-  }, [debouncedSuri]);
+  }, [debouncedSuri, source]);
 
   const _onChangeName = (name: string): void =>
     setName({ isNameValid: !!name.trim(), name });
diff --git a/packages/page-accounts/src/Accounts/modals/Transfer.tsx b/packages/page-accounts/src/Accounts/modals/Transfer.tsx
index 137f62b312..385971124e 100644
--- a/packages/page-accounts/src/Accounts/modals/Transfer.tsx
+++ b/packages/page-accounts/src/Accounts/modals/Transfer.tsx
@@ -36,7 +36,7 @@ function Transfer ({ className, onClose, recipientId: propRecipientId, senderId:
     senderId && recipientId && setExtrinsic(
       () => api.tx.balances.transfer(recipientId, amount || ZERO)
     );
-  }, [amount, recipientId, senderId]);
+  }, [api, amount, recipientId, senderId]);
 
   const transferrable = <span className='label'>{t('transferrable')}</span>;
 
diff --git a/packages/page-accounts/src/Contacts/Address.tsx b/packages/page-accounts/src/Contacts/Address.tsx
index 1b8dc11d04..f338b27c5a 100644
--- a/packages/page-accounts/src/Contacts/Address.tsx
+++ b/packages/page-accounts/src/Contacts/Address.tsx
@@ -45,6 +45,14 @@ function Address ({ address, className, filter, isFavorite, toggleFavorite }: Pr
 
   const _setTags = (tags: string[]): void => setTags(tags.sort());
 
+  useEffect((): void => {
+    const current = keyring.getAddress(address);
+
+    setCurrent(current || null);
+    setGenesisHash((current && current.meta.genesisHash) || null);
+  // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, []);
+
   useEffect((): void => {
     const { identity, nickname } = info || {};
 
@@ -55,14 +63,7 @@ function Address ({ address, className, filter, isFavorite, toggleFavorite }: Pr
     } else if (nickname) {
       setAccName(nickname);
     }
-  }, [info]);
-
-  useEffect((): void => {
-    const current = keyring.getAddress(address);
-
-    setCurrent(current || null);
-    setGenesisHash((current && current.meta.genesisHash) || null);
-  }, []);
+  }, [api, info]);
 
   useEffect((): void => {
     const account = keyring.getAddress(address);
diff --git a/packages/page-accounts/src/Vanity/Match.tsx b/packages/page-accounts/src/Vanity/Match.tsx
index 9a16edddea..e35ed9efe4 100644
--- a/packages/page-accounts/src/Vanity/Match.tsx
+++ b/packages/page-accounts/src/Vanity/Match.tsx
@@ -25,11 +25,11 @@ function Match ({ address, className, count, offset, onCreateToggle, onRemove, s
   );
   const _onCreate = useCallback(
     (): void => onCreateToggle(hexSeed),
-    [hexSeed]
+    [hexSeed, onCreateToggle]
   );
   const _onRemove = useCallback(
     (): void => onRemove(address),
-    [address]
+    [address, onRemove]
   );
 
   return (
diff --git a/packages/page-claims/src/Claim.tsx b/packages/page-claims/src/Claim.tsx
index 5a97f67bbe..a7cb2cd495 100644
--- a/packages/page-claims/src/Claim.tsx
+++ b/packages/page-claims/src/Claim.tsx
@@ -5,7 +5,7 @@
 import { Option } from '@polkadot/types';
 import { BalanceOf, EthereumAddress } from '@polkadot/types/interfaces';
 
-import React, { useEffect, useState } from 'react';
+import React, { useCallback, useEffect, useState } from 'react';
 import styled from 'styled-components';
 import { Button, Card } from '@polkadot/react-components';
 import { useApi } from '@polkadot/react-hooks';
@@ -27,24 +27,26 @@ function Claim ({ button, className, ethereumAddress }: Props): React.ReactEleme
   const [claimAddress, setClaimAddress] = useState<EthereumAddress | null>(null);
   const [isBusy, setIsBusy] = useState(false);
 
-  const _fetchClaim = (address: EthereumAddress): void => {
-    setIsBusy(true);
+  const _fetchClaim = useCallback(
+    (address: EthereumAddress): void => {
+      setIsBusy(true);
 
-    api.query.claims
-      .claims<Option<BalanceOf>>(address)
-      .then((claim): void => {
-        setClaimValue(claim.unwrapOr(null));
-        setIsBusy(false);
-      })
-      .catch((): void => setIsBusy(false));
-  };
+      api.query.claims
+        .claims<Option<BalanceOf>>(address)
+        .then((claim): void => {
+          setClaimValue(claim.unwrapOr(null));
+          setIsBusy(false);
+        })
+        .catch((): void => setIsBusy(false));
+    },
+    [api]
+  );
 
   useEffect((): void => {
-    if (ethereumAddress !== claimAddress) {
-      setClaimAddress(ethereumAddress);
-      ethereumAddress && _fetchClaim(ethereumAddress);
-    }
-  }, [ethereumAddress]);
+    setClaimAddress(ethereumAddress);
+
+    ethereumAddress && _fetchClaim(ethereumAddress);
+  }, [_fetchClaim, ethereumAddress]);
 
   if (isBusy || !claimAddress) {
     return null;
diff --git a/packages/page-contracts/package.json b/packages/page-contracts/package.json
index 86f6deed6f..4fab832583 100644
--- a/packages/page-contracts/package.json
+++ b/packages/page-contracts/package.json
@@ -12,6 +12,6 @@
   "license": "Apache-2.0",
   "dependencies": {
     "@babel/runtime": "^7.9.2",
-    "@polkadot/api-contract": "^1.9.0-beta.11"
+    "@polkadot/api-contract": "^1.9.0-beta.12"
   }
 }
diff --git a/packages/page-contracts/src/Contracts/Call.tsx b/packages/page-contracts/src/Contracts/Call.tsx
index d493eb129d..f39b905e72 100644
--- a/packages/page-contracts/src/Contracts/Call.tsx
+++ b/packages/page-contracts/src/Contracts/Call.tsx
@@ -33,13 +33,8 @@ interface Props extends BareProps {
 function Call (props: Props): React.ReactElement<Props> | null {
   const { t } = useTranslation();
   const { className, isOpen, callContract, callMessageIndex, onChangeCallContractAddress, onChangeCallMessageIndex, onClose } = props;
-
-  if (isNull(callContract) || isNull(callMessageIndex)) {
-    return null;
-  }
-
-  const hasRpc = callContract.hasRpcContractsCall;
-  let callMessage = callContract.getMessage(callMessageIndex);
+  const hasRpc = callContract?.hasRpcContractsCall;
+  const callMessage = callContract?.getMessage(isNull(callMessageIndex) ? undefined : callMessageIndex);
 
   const { api } = useApi();
   const [accountId, setAccountId] = useState<StringOrNull>(null);
@@ -51,23 +46,29 @@ function Call (props: Props): React.ReactElement<Props> | null {
   const [useRpc, setUseRpc] = useState(hasRpc && callMessage && !callMessage.def.mutates);
 
   useEffect((): void => {
-    callMessage = callContract.getMessage(callMessageIndex);
+    if (callContract && callMessageIndex) {
+      const callMessage = callContract.getMessage(callMessageIndex);
 
-    setParams(callMessage ? callMessage.def.args.map(({ type }): any => createValue({ type })) : []);
+      setParams(callMessage ? callMessage.def.args.map(({ type }): any => createValue({ type })) : []);
 
-    if (hasRpc) {
-      if (!callMessage || callMessage.def.mutates) {
-        setUseRpc(false);
-      } else {
-        setUseRpc(true);
+      if (hasRpc) {
+        if (!callMessage || callMessage.def.mutates) {
+          setUseRpc(false);
+        } else {
+          setUseRpc(true);
+        }
       }
     }
-  }, [callContract, callMessageIndex]);
+  }, [callContract, callMessageIndex, hasRpc]);
 
   useEffect((): void => {
     setOutcomes([]);
   }, [callContract]);
 
+  if (isNull(callContract) || isNull(callMessageIndex) || !callMessage) {
+    return null;
+  }
+
   const _onChangeAccountId = (accountId: StringOrNull): void => setAccountId(accountId);
 
   const _onChangeCallMessageIndexString = (callMessageIndexString: string): void => {
@@ -91,7 +92,7 @@ function Call (props: Props): React.ReactElement<Props> | null {
   };
 
   const _onSubmitRpc = (): void => {
-    if (!accountId) return;
+    if (!accountId || !callMessage) return;
 
     callContract
       .call('rpc', callMessage.def.name, endowment, gasLimit, ...params)
diff --git a/packages/page-contracts/src/Contracts/Contract.tsx b/packages/page-contracts/src/Contracts/Contract.tsx
index 765443344c..6caf1615f3 100644
--- a/packages/page-contracts/src/Contracts/Contract.tsx
+++ b/packages/page-contracts/src/Contracts/Contract.tsx
@@ -31,13 +31,12 @@ const ContractCard = styled(Card)`
 function Contract (props: Props): React.ReactElement<Props> | null {
   const { t } = useTranslation();
   const { contract: { abi, address }, onCall } = props;
+  const [isForgetOpen, setIsForgetOpen] = useState(false);
 
   if (!address || !abi) {
     return null;
   }
 
-  const [isForgetOpen, setIsForgetOpen] = useState(false);
-
   const _toggleForget = (): void => setIsForgetOpen(!isForgetOpen);
   const _onForget = (): void => {
     if (!address) {
diff --git a/packages/page-contracts/src/Contracts/ValidateAddr.tsx b/packages/page-contracts/src/Contracts/ValidateAddr.tsx
index 0a6b104fb6..89e713f4cf 100644
--- a/packages/page-contracts/src/Contracts/ValidateAddr.tsx
+++ b/packages/page-contracts/src/Contracts/ValidateAddr.tsx
@@ -39,7 +39,7 @@ function ValidateAddr ({ address, onChange }: Props): React.ReactElement<Props>
 
   useEffect((): void => {
     onChange(isAddress && isStored);
-  }, [isAddress, isStored]);
+  }, [isAddress, isStored, onChange]);
 
   if (isStored || !isAddress) {
     return null;
diff --git a/packages/page-contracts/src/Contracts/index.tsx b/packages/page-contracts/src/Contracts/index.tsx
index c9195964ed..d464f67ceb 100644
--- a/packages/page-contracts/src/Contracts/index.tsx
+++ b/packages/page-contracts/src/Contracts/index.tsx
@@ -35,13 +35,9 @@ function Contracts (props: Props): React.ReactElement<Props> {
 
   useEffect((): void => {
     setContracts(filterContracts(api, props));
-  }, [accounts, api, keyringContracts]);
+  }, [accounts, api, keyringContracts, props]);
 
-  let callContract = contracts[callContractIndex] || null;
-
-  useEffect((): void => {
-    callContract = contracts[callContractIndex];
-  }, [callContractIndex]);
+  const callContract = contracts[callContractIndex] || null;
 
   const _toggleAdd = (): void => setIsAddOpen(!isAddOpen);
   const _toggleCall = (): void => setIsCallOpen(!isCallOpen);
diff --git a/packages/page-contracts/src/Messages.tsx b/packages/page-contracts/src/Messages.tsx
index 6bc63206be..9dd77641c6 100644
--- a/packages/page-contracts/src/Messages.tsx
+++ b/packages/page-contracts/src/Messages.tsx
@@ -51,8 +51,7 @@ function onSelectConstructor (props: Props, index: number): () => void {
   };
 }
 
-function renderItem (props: Props, message: ContractABIMessage, index: number, asConstructor = false): React.ReactNode {
-  const { t } = useTranslation();
+function renderItem (props: Props, message: ContractABIMessage, index: number, asConstructor: boolean, t: (key: string) => string): React.ReactNode {
   const { docs = [], name } = message;
 
   return (
@@ -108,24 +107,24 @@ function renderItem (props: Props, message: ContractABIMessage, index: number, a
   );
 }
 
-function renderConstructor (props: Props, index: number): React.ReactNode {
+function renderConstructor (props: Props, index: number, t: (key: string) => string): React.ReactNode {
   const { contractAbi: { abi: { contract: { constructors } } } } = props;
 
   if (!constructors[index]) {
     return null;
   }
 
-  return renderItem(props, constructors[index], index, true);
+  return renderItem(props, constructors[index], index, true, t);
 }
 
-function renderMessage (props: Props, index: number): React.ReactNode {
+function renderMessage (props: Props, index: number, t: (key: string) => string): React.ReactNode {
   const { contractAbi: { abi: { contract: { messages } } } } = props;
 
   if (!messages[index]) {
     return null;
   }
 
-  return renderItem(props, messages[index], index);
+  return renderItem(props, messages[index], index, false, t);
 }
 
 function Messages (props: Props): React.ReactElement<Props> {
@@ -134,8 +133,8 @@ function Messages (props: Props): React.ReactElement<Props> {
 
   return (
     <div className={classes(className, 'ui--Messages', isLabelled && 'labelled')}>
-      {withConstructors && constructors.map((_, index): React.ReactNode => renderConstructor(props, index))}
-      {messages.map((_, index): React.ReactNode => renderMessage(props, index))}
+      {withConstructors && constructors.map((_, index): React.ReactNode => renderConstructor(props, index, t))}
+      {messages.map((_, index): React.ReactNode => renderMessage(props, index, t))}
       {isRemovable && (
         <IconLink
           label={t('Remove ABI')}
diff --git a/packages/page-council/src/Motions/ProposeExternal.tsx b/packages/page-council/src/Motions/ProposeExternal.tsx
index c02c271f3d..3b94902d03 100644
--- a/packages/page-council/src/Motions/ProposeExternal.tsx
+++ b/packages/page-council/src/Motions/ProposeExternal.tsx
@@ -37,7 +37,7 @@ function ProposeExternal ({ className, isMember, members }: Props): React.ReactE
     } else {
       setProposal(null);
     }
-  }, [hash, isHashValid]);
+  }, [api, hash, isHashValid]);
 
   return (
     <>
diff --git a/packages/page-council/src/Motions/Slashing.tsx b/packages/page-council/src/Motions/Slashing.tsx
index f59b472993..0fb12d6997 100644
--- a/packages/page-council/src/Motions/Slashing.tsx
+++ b/packages/page-council/src/Motions/Slashing.tsx
@@ -49,7 +49,7 @@ function Slashing ({ className, isMember, members }: Props): React.ReactElement<
     } else {
       setEras([]);
     }
-  }, [slashes]);
+  }, [slashes, t]);
 
   useEffect((): void => {
     const actioned = selectedEra && slashes?.find(([era]): boolean => era.eqn(selectedEra));
@@ -59,7 +59,7 @@ function Slashing ({ className, isMember, members }: Props): React.ReactElement<
         ? api.tx.staking.cancelDeferredSlash(actioned[0], actioned[1].map((_, index): number => index))
         : null
     );
-  }, [selectedEra, slashes]);
+  }, [api, selectedEra, slashes]);
 
   return (
     <>
diff --git a/packages/page-council/src/Motions/useAvailableSlashes.ts b/packages/page-council/src/Motions/useAvailableSlashes.ts
index 3081b3978a..d137617b45 100644
--- a/packages/page-council/src/Motions/useAvailableSlashes.ts
+++ b/packages/page-council/src/Motions/useAvailableSlashes.ts
@@ -48,7 +48,7 @@ export default function useAvailableSlashes (): [BN, UnappliedSlash[]][] {
     return (): void => {
       unsub && unsub();
     };
-  }, [earliestSlash, indexes]);
+  }, [api, earliestSlash, indexes, mountedRef]);
 
   return slashes;
 }
diff --git a/packages/page-council/src/Overview/index.tsx b/packages/page-council/src/Overview/index.tsx
index 29e2718bec..16c1bfae07 100644
--- a/packages/page-council/src/Overview/index.tsx
+++ b/packages/page-council/src/Overview/index.tsx
@@ -60,9 +60,11 @@ function Overview ({ className, prime }: Props): React.ReactElement<Props> {
   const bestNumber = useCall<BlockNumber>(api.derive.chain.bestNumber, []);
   const electionsInfo = useCall<DerivedElectionsInfo>(api.derive.elections.info, []);
   const allVotes = api.query.electionsPhragmen?.votesOf.creator.meta.type.asMap.linked.isTrue
+    // eslint-disable-next-line react-hooks/rules-of-hooks
     ? useCall<Record<string, AccountId[]>>(api.query.electionsPhragmen?.votesOf, [], {
       transform: transformVotesPrev
     })
+    // eslint-disable-next-line react-hooks/rules-of-hooks
     : useCall<Record<string, AccountId[]>>(api.query.electionsPhragmen?.votesOf.entries as any, [], {
       transform: transformVotes
     });
diff --git a/packages/page-democracy/src/Overview/DispatchEntry.tsx b/packages/page-democracy/src/Overview/DispatchEntry.tsx
index 611cade2f4..8a37cd5566 100644
--- a/packages/page-democracy/src/Overview/DispatchEntry.tsx
+++ b/packages/page-democracy/src/Overview/DispatchEntry.tsx
@@ -33,7 +33,7 @@ function DispatchEntry ({ blockNumber, hash, referendumIndex }: Props): React.Re
 
   useEffect((): void => {
     preimage?.isSome && setProposal(api.createType('Proposal', preimage.unwrap()[0].toU8a(true)));
-  }, [preimage]);
+  }, [api, preimage]);
 
   return (
     <tr>
diff --git a/packages/page-democracy/src/Overview/Externals.tsx b/packages/page-democracy/src/Overview/Externals.tsx
index a2c9abc8e2..203497c7c7 100644
--- a/packages/page-democracy/src/Overview/Externals.tsx
+++ b/packages/page-democracy/src/Overview/Externals.tsx
@@ -49,7 +49,7 @@ function Externals ({ className }: Props): React.ReactElement<Props> | null {
     } else {
       setExpanded(null);
     }
-  }, [preimage]);
+  }, [api, preimage]);
 
   if (!hash) {
     return null;
diff --git a/packages/page-democracy/src/Overview/Fasttrack.tsx b/packages/page-democracy/src/Overview/Fasttrack.tsx
index 2b64c1c20d..038e4c59f5 100644
--- a/packages/page-democracy/src/Overview/Fasttrack.tsx
+++ b/packages/page-democracy/src/Overview/Fasttrack.tsx
@@ -46,7 +46,7 @@ function Fasttrack ({ hash, threshold }: Props): React.ReactElement<Props> | nul
         ? api.tx.democracy.fastTrack(hash, votingBlocks, delayBlocks)
         : null
     );
-  }, [delayBlocks, hash, votingBlocks]);
+  }, [api, delayBlocks, hash, votingBlocks]);
 
   return (
     <>
diff --git a/packages/page-democracy/src/useCounter.ts b/packages/page-democracy/src/useCounter.ts
index 5d59ebb21e..6353b88e6d 100644
--- a/packages/page-democracy/src/useCounter.ts
+++ b/packages/page-democracy/src/useCounter.ts
@@ -17,7 +17,7 @@ export default function useCounter (): number {
       (proposals?.length || 0) +
       (referenda?.length || 0)
     );
-  }, [proposals, referenda]);
+  }, [mountedRef, proposals, referenda]);
 
   return counter;
 }
diff --git a/packages/page-explorer/src/BlockInfo/index.tsx b/packages/page-explorer/src/BlockInfo/index.tsx
index d397e702db..4eebbcb5fb 100644
--- a/packages/page-explorer/src/BlockInfo/index.tsx
+++ b/packages/page-explorer/src/BlockInfo/index.tsx
@@ -20,11 +20,13 @@ function Entry (): React.ReactElement<{}> | null {
   const [stateValue, setStateValue] = useState<string | undefined>(value);
 
   useEffect((): void => {
-    if (value && value !== stateValue) {
-      setStateValue(value);
-    } else if (!stateValue && bestNumber) {
-      setStateValue(bestNumber.toString());
-    }
+    setStateValue((stateValue) =>
+      value && value !== stateValue
+        ? value
+        : !stateValue && bestNumber
+          ? bestNumber.toString()
+          : stateValue
+    );
   }, [bestNumber, value]);
 
   if (!stateValue) {
diff --git a/packages/page-explorer/src/Forks.tsx b/packages/page-explorer/src/Forks.tsx
index fa14443062..93801b0741 100644
--- a/packages/page-explorer/src/Forks.tsx
+++ b/packages/page-explorer/src/Forks.tsx
@@ -352,6 +352,7 @@ function Forks ({ className }: Props): React.ReactElement<Props> | null {
       _subFinHead && _subFinHead();
       _subNewHead && _subNewHead();
     };
+  // eslint-disable-next-line react-hooks/exhaustive-deps
   }, []);
 
   if (!tree) {
diff --git a/packages/page-explorer/src/NodeInfo/index.tsx b/packages/page-explorer/src/NodeInfo/index.tsx
index f290e0183d..67a2c871b4 100644
--- a/packages/page-explorer/src/NodeInfo/index.tsx
+++ b/packages/page-explorer/src/NodeInfo/index.tsx
@@ -51,6 +51,7 @@ function NodeInfo (): React.ReactElement<{}> {
     return (): void => {
       window.clearInterval(timerId);
     };
+  // eslint-disable-next-line react-hooks/exhaustive-deps
   }, []);
 
   return (
diff --git a/packages/page-generic-asset/src/Transfer.tsx b/packages/page-generic-asset/src/Transfer.tsx
index 6a8587e562..a8575c0bcc 100644
--- a/packages/page-generic-asset/src/Transfer.tsx
+++ b/packages/page-generic-asset/src/Transfer.tsx
@@ -55,7 +55,7 @@ function Transfer ({ assets, className, onClose, recipientId: propRecipientId, s
         ? api.tx.genericAsset.transfer(assetId, recipientId, amount)
         : null
     );
-  }, [amount, assetId, recipientId, senderId]);
+  }, [api, amount, assetId, recipientId, senderId]);
 
   const _onAddAssetId = (id: string): void => {
     // eslint-disable-next-line @typescript-eslint/prefer-regexp-exec
diff --git a/packages/page-js/src/Playground.tsx b/packages/page-js/src/Playground.tsx
index c3e27a4e71..dc7fca0bc6 100644
--- a/packages/page-js/src/Playground.tsx
+++ b/packages/page-js/src/Playground.tsx
@@ -106,6 +106,7 @@ function Playground ({ className }: Props): React.ReactElement<Props> {
     setIsCustomExample((selected && selected.type === 'custom') || false);
     setOptions(options);
     setSelected(selected || snippets[0]);
+  // eslint-disable-next-line react-hooks/exhaustive-deps
   }, []);
 
   useEffect((): void => {
diff --git a/packages/page-parachains/src/Overview/Register.tsx b/packages/page-parachains/src/Overview/Register.tsx
index 3d7fd3d26c..5d9e462334 100644
--- a/packages/page-parachains/src/Overview/Register.tsx
+++ b/packages/page-parachains/src/Overview/Register.tsx
@@ -56,7 +56,7 @@ function Register ({ nextFreeId = ONE_THOUSAND, sudoKey }: Props): React.ReactEl
     (): ParaInfo => {
       return createType(api.registry, 'ParaInfo', { scheduling });
     },
-    [scheduling]
+    [api, scheduling]
   );
   const extrinsic = useMemo(
     (): SubmittableExtrinsic | null => {
@@ -72,7 +72,7 @@ function Register ({ nextFreeId = ONE_THOUSAND, sudoKey }: Props): React.ReactEl
         return null;
       }
     },
-    [id, info, code, initialHeadState]
+    [api, id, info, code, initialHeadState]
   );
 
   return (
diff --git a/packages/page-parachains/src/Parachain/Deregister.tsx b/packages/page-parachains/src/Parachain/Deregister.tsx
index ea838e65e9..f19b75b7e8 100644
--- a/packages/page-parachains/src/Parachain/Deregister.tsx
+++ b/packages/page-parachains/src/Parachain/Deregister.tsx
@@ -37,7 +37,7 @@ function Deregister ({ id, info, isOpen, onClose, onSubmit, sudoKey }: Props): R
         return null;
       }
     },
-    [id]
+    [api, id]
   );
 
   const onStart = (): void => {
diff --git a/packages/page-parachains/src/index.tsx b/packages/page-parachains/src/index.tsx
index 9bb8fbc0af..9d67e3f353 100644
--- a/packages/page-parachains/src/index.tsx
+++ b/packages/page-parachains/src/index.tsx
@@ -39,7 +39,7 @@ function ParachainsApp ({ basePath }: Props): React.ReactElement<Props> {
         }]
         : []
     )
-  ], [location, paraInfoRef.current, t]);
+  ], [match, t]);
 
   return (
     <main>
diff --git a/packages/page-settings/src/Metadata/Extensions.tsx b/packages/page-settings/src/Metadata/Extensions.tsx
index 6c31547381..e1b3792d3e 100644
--- a/packages/page-settings/src/Metadata/Extensions.tsx
+++ b/packages/page-settings/src/Metadata/Extensions.tsx
@@ -31,7 +31,7 @@ function Extensions (): React.ReactElement {
           .then(() => toggleBusy());
       }
     },
-    [extensions, metaDef, selectedIndex]
+    [extensions, metaDef, selectedIndex, toggleBusy]
   );
 
   if (!options.length) {
diff --git a/packages/page-settings/src/SelectUrl.tsx b/packages/page-settings/src/SelectUrl.tsx
index ee2b8b7334..f0aa7cad0d 100644
--- a/packages/page-settings/src/SelectUrl.tsx
+++ b/packages/page-settings/src/SelectUrl.tsx
@@ -71,6 +71,9 @@ function SelectUrl ({ className, onChange }: Props): React.ReactElement<Props> {
 
   useEffect((): void => {
     onChange && info.isValid && onChange(info.url);
+  // the issue here is that the onChange callback changes each and every render... so Houston, we have
+  // a desperate issue here :(
+  // eslint-disable-next-line react-hooks/exhaustive-deps
   }, [info]);
 
   const _onChangeUrl = useCallback(
@@ -87,7 +90,7 @@ function SelectUrl ({ className, onChange }: Props): React.ReactElement<Props> {
       ),
       isCustom
     }),
-    []
+    [info]
   );
 
   return (
diff --git a/packages/page-staking/src/Actions/Account/InjectKeys.tsx b/packages/page-staking/src/Actions/Account/InjectKeys.tsx
index 503e279751..ef2dc5bddc 100644
--- a/packages/page-staking/src/Actions/Account/InjectKeys.tsx
+++ b/packages/page-staking/src/Actions/Account/InjectKeys.tsx
@@ -63,7 +63,7 @@ function InjectKeys ({ onClose }: Props): React.ReactElement<Props> | null {
       rpc: { section: 'author', method: 'insertKey' } as any,
       values: [keyType, suri, publicKey]
     }),
-    [keyType, publicKey, suri]
+    [keyType, publicKey, queueRpc, suri]
   );
   const _cryptoOptions = useMemo(
     () => CRYPTO_MAP[keyType].map((value): { text: string; value: KeypairType } => ({
diff --git a/packages/page-staking/src/Actions/Account/InputValidateAmount.tsx b/packages/page-staking/src/Actions/Account/InputValidateAmount.tsx
index 3cce3732b8..9c186b8d40 100644
--- a/packages/page-staking/src/Actions/Account/InputValidateAmount.tsx
+++ b/packages/page-staking/src/Actions/Account/InputValidateAmount.tsx
@@ -33,12 +33,10 @@ function ValidateAmount ({ accountId, onError, value }: Props): React.ReactEleme
         newError = t('The specified value is greater than your free balance. The node will bond the maximum amount available.');
       }
 
-      if (error !== newError) {
-        onError(newError);
-        setError(newError);
-      }
+      onError(newError);
+      setError((error) => error !== newError ? newError : error);
     }
-  }, [allBalances, value]);
+  }, [allBalances, onError, t, value]);
 
   if (!error) {
     return null;
diff --git a/packages/page-staking/src/Actions/Account/InputValidationController.tsx b/packages/page-staking/src/Actions/Account/InputValidationController.tsx
index 6b3d0caf60..34b6ae3fc3 100644
--- a/packages/page-staking/src/Actions/Account/InputValidationController.tsx
+++ b/packages/page-staking/src/Actions/Account/InputValidationController.tsx
@@ -49,12 +49,10 @@ function ValidateController ({ accountId, controllerId, defaultController, onErr
         newError = t('A controller account should not be set to manages multiple stashes. The selected controller is already controlling {{stashId}}', { replace: { stashId } });
       }
 
-      if (error !== newError) {
-        onError(newError);
-        setError(newError);
-      }
+      onError(newError);
+      setError((error) => error !== newError ? newError : error);
     }
-  }, [accountId, bondedId, controllerId, defaultController, stashId]);
+  }, [accountId, bondedId, controllerId, defaultController, onError, stashId, t]);
 
   if (!error || !accountId) {
     return null;
diff --git a/packages/page-staking/src/Actions/Account/InputValidationSessionKey.tsx b/packages/page-staking/src/Actions/Account/InputValidationSessionKey.tsx
index 3ddb364a55..052635e145 100644
--- a/packages/page-staking/src/Actions/Account/InputValidationSessionKey.tsx
+++ b/packages/page-staking/src/Actions/Account/InputValidationSessionKey.tsx
@@ -21,17 +21,15 @@ function ValidateSessionEd25519 ({ onError, sessionId, stashId }: Props): React.
   const [error, setError] = useState<string | null>(null);
 
   useEffect((): void => {
-    let newError = null;
+    let newError: string | null = null;
 
     if (sessionId === stashId) {
       newError = t('For fund security, your session key should not match your stash key.');
     }
 
-    if (error !== newError) {
-      onError(newError);
-      setError(newError);
-    }
-  }, [sessionId, stashId]);
+    onError(newError);
+    setError((error) => error !== newError ? newError : error);
+  }, [onError, sessionId, stashId, t]);
 
   if (!error) {
     return null;
diff --git a/packages/page-staking/src/Actions/Account/InputValidationUnstakeThreshold.tsx b/packages/page-staking/src/Actions/Account/InputValidationUnstakeThreshold.tsx
index 9ac4bd4bd8..cb269544fa 100644
--- a/packages/page-staking/src/Actions/Account/InputValidationUnstakeThreshold.tsx
+++ b/packages/page-staking/src/Actions/Account/InputValidationUnstakeThreshold.tsx
@@ -19,7 +19,7 @@ function InputValidationUnstakeThreshold ({ onError, unstakeThreshold }: Props):
 
   useEffect((): void => {
     if (unstakeThreshold) {
-      let newError = null;
+      let newError: string | null = null;
 
       if (unstakeThreshold.ltn(0)) {
         newError = t('The Threshold must be a positive number');
@@ -27,12 +27,10 @@ function InputValidationUnstakeThreshold ({ onError, unstakeThreshold }: Props):
         newError = t('The Threshold must lower than 11');
       }
 
-      if (newError !== error) {
-        onError(newError);
-        setError(newError);
-      }
+      onError(newError);
+      setError((error) => error !== newError ? newError : error);
     }
-  }, [unstakeThreshold]);
+  }, [onError, t, unstakeThreshold]);
 
   if (!error) {
     return null;
diff --git a/packages/page-staking/src/Actions/Account/index.tsx b/packages/page-staking/src/Actions/Account/index.tsx
index c4b1a8a2e6..0e7c814f2b 100644
--- a/packages/page-staking/src/Actions/Account/index.tsx
+++ b/packages/page-staking/src/Actions/Account/index.tsx
@@ -146,7 +146,7 @@ function Account ({ allStashes, className, isOwnStash, next, onUpdateType, rewar
         onUpdateType(stashId, 'other');
       }
     }
-  }, [allStashes, stakingAccount, stashId, validateInfo]);
+  }, [allAccounts, allStashes, onUpdateType, stakingAccount, stashId, validateInfo]);
 
   useEffect((): void => {
     nominees && setActiveNoms(
@@ -167,7 +167,7 @@ function Account ({ allStashes, className, isOwnStash, next, onUpdateType, rewar
       accountId: controllerId,
       extrinsic: createPayout(api, payoutRewards)
     }),
-    [api, controllerId, payoutRewards]
+    [api, controllerId, payoutRewards, queueExtrinsic]
   );
 
   return (
diff --git a/packages/page-staking/src/Actions/Account/useInactives.ts b/packages/page-staking/src/Actions/Account/useInactives.ts
index 7d3c01fb58..937e879852 100644
--- a/packages/page-staking/src/Actions/Account/useInactives.ts
+++ b/packages/page-staking/src/Actions/Account/useInactives.ts
@@ -43,7 +43,7 @@ export default function useInactives (stashId: string, nominees?: string[]): str
     return (): void => {
       unsub && unsub();
     };
-  }, [indexes, nominees, stashId]);
+  }, [api, indexes, mountedRef, nominees, stashId]);
 
   return inactives;
 }
diff --git a/packages/page-staking/src/Overview/Address/Favorite.tsx b/packages/page-staking/src/Overview/Address/Favorite.tsx
index 58df79817f..e781814f38 100644
--- a/packages/page-staking/src/Overview/Address/Favorite.tsx
+++ b/packages/page-staking/src/Overview/Address/Favorite.tsx
@@ -14,7 +14,7 @@ interface Props {
 function Favorite ({ address, isFavorite, toggleFavorite }: Props): React.ReactElement<Props> {
   const _onFavorite = useCallback(
     (): void => toggleFavorite(address),
-    [address]
+    [address, toggleFavorite]
   );
 
   return (
diff --git a/packages/page-staking/src/Overview/Address/index.tsx b/packages/page-staking/src/Overview/Address/index.tsx
index add9ab9cf6..820a7447ce 100644
--- a/packages/page-staking/src/Overview/Address/index.tsx
+++ b/packages/page-staking/src/Overview/Address/index.tsx
@@ -115,13 +115,13 @@ function Address ({ address, className, filterName, hasQueries, isAuthor, isElec
       setNominators && setNominators(info.nominators.map(([who]): string => who.toString()));
       setStakingState(info);
     }
-  }, [stakingInfo]);
+  }, [setNominators, stakingInfo, withNominations]);
 
   useEffect((): void => {
     setIsVisible(
       checkVisibility(api, address, filterName, info)
     );
-  }, [address, filterName, info]);
+  }, [address, api, filterName, info]);
 
   const _onQueryStats = useCallback(
     (): void => {
diff --git a/packages/page-staking/src/Query/ChartRewards.tsx b/packages/page-staking/src/Query/ChartRewards.tsx
index 3cdf777f32..4bd0bdf30b 100644
--- a/packages/page-staking/src/Query/ChartRewards.tsx
+++ b/packages/page-staking/src/Query/ChartRewards.tsx
@@ -62,7 +62,7 @@ function ChartRewards ({ validatorId }: Props): React.ReactElement<Props> {
   const { currency, divisor } = useMemo((): { currency: string; divisor: BN } => ({
     currency: formatBalance.getDefaults().unit,
     divisor: new BN('1'.padEnd(formatBalance.getDefaults().decimals + 1, '0'))
-  }), [formatBalance]);
+  }), []);
   const legends = useMemo(() => [
     t('{{currency}} slashed', { replace: { currency } }),
     t('{{currency}} rewards', { replace: { currency } }),
@@ -73,7 +73,7 @@ function ChartRewards ({ validatorId }: Props): React.ReactElement<Props> {
     erasRewards && ownSlashes && stakerPoints && setChart(
       extractRewards(erasRewards, ownSlashes, stakerPoints, divisor)
     );
-  }, [erasRewards, stakerPoints]);
+  }, [divisor, erasRewards, ownSlashes, stakerPoints]);
 
   return (
     <div className='staking--Chart'>
diff --git a/packages/page-staking/src/Query/ChartStake.tsx b/packages/page-staking/src/Query/ChartStake.tsx
index abe8f9e960..1ecf8902b0 100644
--- a/packages/page-staking/src/Query/ChartStake.tsx
+++ b/packages/page-staking/src/Query/ChartStake.tsx
@@ -54,7 +54,7 @@ function ChartStake ({ validatorId }: Props): React.ReactElement<Props> {
   const { currency, divisor } = useMemo((): { currency: string; divisor: BN } => ({
     currency: formatBalance.getDefaults().unit,
     divisor: new BN('1'.padEnd(formatBalance.getDefaults().decimals + 1, '0'))
-  }), [formatBalance]);
+  }), []);
   const legends = useMemo(() => [
     t('{{currency}} clipped', { replace: { currency } }),
     t('{{currency}} total', { replace: { currency } }),
@@ -65,7 +65,7 @@ function ChartStake ({ validatorId }: Props): React.ReactElement<Props> {
     ownExposure && setChart(
       extractStake(ownExposure, divisor)
     );
-  }, [ownExposure]);
+  }, [divisor, ownExposure]);
 
   return (
     <div className='staking--Chart'>
diff --git a/packages/page-staking/src/Query/useBlockCounts.tsx b/packages/page-staking/src/Query/useBlockCounts.tsx
index 8e9b131fd5..67f1981839 100644
--- a/packages/page-staking/src/Query/useBlockCounts.tsx
+++ b/packages/page-staking/src/Query/useBlockCounts.tsx
@@ -31,11 +31,11 @@ export default function useBlockCounts (accountId: string, sessionRewards: Sessi
           });
       }
     }
-  }, [accountId, sessionRewards]);
+  }, [accountId, api, mountedRef, sessionRewards]);
 
   useEffect((): void => {
     setCounts([...historic, current || api.createType('u32')].slice(1));
-  }, [current, historic]);
+  }, [api, current, historic]);
 
   return counts;
 }
diff --git a/packages/page-staking/src/Targets/index.tsx b/packages/page-staking/src/Targets/index.tsx
index 6d46a73e34..b24655db7e 100644
--- a/packages/page-staking/src/Targets/index.tsx
+++ b/packages/page-staking/src/Targets/index.tsx
@@ -195,7 +195,7 @@ function Targets ({ className }: Props): React.ReactElement<Props> {
           ? !sortFromMax
           : true
       })),
-    [sortBy]
+    []
   );
 
   useEffect((): void => {
diff --git a/packages/react-api/package.json b/packages/react-api/package.json
index 523e13082a..d412477363 100644
--- a/packages/react-api/package.json
+++ b/packages/react-api/package.json
@@ -31,8 +31,8 @@
   "homepage": "https://github.com/polkadot-js/ui/tree/master/packages/ui-reactive#readme",
   "dependencies": {
     "@babel/runtime": "^7.9.2",
-    "@polkadot/api": "^1.9.0-beta.11",
-    "@polkadot/extension-dapp": "^0.23.0-beta.10",
+    "@polkadot/api": "^1.9.0-beta.12",
+    "@polkadot/extension-dapp": "^0.23.1",
     "rxjs-compat": "^6.5.4"
   }
 }
diff --git a/packages/react-api/src/Api.tsx b/packages/react-api/src/Api.tsx
index 240d08b13d..2abe5412d4 100644
--- a/packages/react-api/src/Api.tsx
+++ b/packages/react-api/src/Api.tsx
@@ -172,6 +172,7 @@ function Api ({ children, url }: Props): React.ReactElement<Props> | null {
       .catch((error) => console.error(error));
 
     setIsApiInitialized(true);
+  // eslint-disable-next-line react-hooks/exhaustive-deps
   }, []);
 
   if (!props.isApiInitialized) {
diff --git a/packages/react-components/src/AccountName.tsx b/packages/react-components/src/AccountName.tsx
index 15a4406907..d786483aa4 100644
--- a/packages/react-components/src/AccountName.tsx
+++ b/packages/react-components/src/AccountName.tsx
@@ -199,7 +199,7 @@ function AccountName ({ children, className, defaultName, label, onClick, overri
     } else {
       setName(defaultOrAddr(defaultName, cacheAddr, accountIndex));
     }
-  }, [address, info, isRegistrar, toggle]);
+  }, [api, address, defaultName, info, isRegistrar, t, toggle, toggleJudgement]);
 
   return (
     <>
@@ -263,9 +263,5 @@ export default React.memo(styled(AccountName)`
       line-height: 1em;
       vertical-align: middle;
     }
-
-    .ui--Badge {
-      margin-top: -2px;
-    }
   }
 `);
diff --git a/packages/react-components/src/Chart/HorizBar.tsx b/packages/react-components/src/Chart/HorizBar.tsx
index b34b871927..534153ceb2 100644
--- a/packages/react-components/src/Chart/HorizBar.tsx
+++ b/packages/react-components/src/Chart/HorizBar.tsx
@@ -87,7 +87,7 @@ function ChartHorizBar ({ aspectRatio = 8, className, max = 100, showLabels = fa
     if (newJsonValues !== jsonValues) {
       setState(calculateOptions(aspectRatio, values, newJsonValues, max, showLabels));
     }
-  }, [values]);
+  }, [aspectRatio, jsonValues, max, showLabels, values]);
 
   if (!chartData) {
     return null;
diff --git a/packages/react-components/src/Chart/Line.tsx b/packages/react-components/src/Chart/Line.tsx
index a7ee14b15d..5182a455eb 100644
--- a/packages/react-components/src/Chart/Line.tsx
+++ b/packages/react-components/src/Chart/Line.tsx
@@ -82,7 +82,7 @@ function LineChart ({ className, colors, labels, legends, style, values }: LineP
     if (newJsonValues !== jsonValues) {
       setState(calculateOptions(colors, legends, labels, values, newJsonValues));
     }
-  }, [labels, legends, values]);
+  }, [colors, jsonValues, labels, legends, values]);
 
   if (!chartData) {
     return null;
diff --git a/packages/react-components/src/Dropdown.tsx b/packages/react-components/src/Dropdown.tsx
index 240a73c258..ad66b55722 100644
--- a/packages/react-components/src/Dropdown.tsx
+++ b/packages/react-components/src/Dropdown.tsx
@@ -56,6 +56,7 @@ function BaseDropdown<Option> ({ allowAdd = false, className, defaultValue, drop
         lastUpdate.current = json;
 
         setStored(value);
+
         onChange && onChange(
           transform
             ? transform(value)
@@ -68,7 +69,7 @@ function BaseDropdown<Option> ({ allowAdd = false, className, defaultValue, drop
 
   useEffect((): void => {
     _setStored(isUndefined(value) ? defaultValue : value);
-  }, [defaultValue, value]);
+  }, [_setStored, defaultValue, value]);
 
   const _onAdd = (_: React.SyntheticEvent<HTMLElement>, { value }: DropdownProps): void =>
     onAdd && onAdd(value);
diff --git a/packages/react-components/src/Editor.tsx b/packages/react-components/src/Editor.tsx
index 1462607e40..9bd79c8a8b 100644
--- a/packages/react-components/src/Editor.tsx
+++ b/packages/react-components/src/Editor.tsx
@@ -50,6 +50,7 @@ function Editor ({ className, code, isValid, onEdit }: Props): React.ReactElemen
     });
 
     editorRef.current = editor;
+  // eslint-disable-next-line react-hooks/exhaustive-deps
   }, []);
 
   useEffect((): void => {
diff --git a/packages/react-components/src/Extrinsic.tsx b/packages/react-components/src/Extrinsic.tsx
index 36863f4b69..c30da0c319 100644
--- a/packages/react-components/src/Extrinsic.tsx
+++ b/packages/react-components/src/Extrinsic.tsx
@@ -61,7 +61,7 @@ function ExtrinsicDisplay ({ defaultValue, isDisabled, isError, isPrivate, label
     }
 
     onChange(method);
-  }, [extrinsic, values]);
+  }, [extrinsic, onChange, values]);
 
   const _onChangeMethod = (fn: SubmittableExtrinsicFunction<'promise'>): void => setCall({ fn, params: getParams(fn) });
 
diff --git a/packages/react-components/src/InputExtrinsic/SelectMethod.tsx b/packages/react-components/src/InputExtrinsic/SelectMethod.tsx
index f44a99678c..7546ec6fe8 100644
--- a/packages/react-components/src/InputExtrinsic/SelectMethod.tsx
+++ b/packages/react-components/src/InputExtrinsic/SelectMethod.tsx
@@ -21,16 +21,16 @@ interface Props extends BareProps {
 }
 
 function SelectMethod ({ api, className, isError, onChange, options, style, value }: Props): React.ReactElement<Props> | null {
-  if (!options.length) {
-    return null;
-  }
-
   const transform = useCallback(
     (method: string): SubmittableExtrinsicFunction<'promise'> =>
       api.tx[value.section][method],
-    [value]
+    [api, value]
   );
 
+  if (!options.length) {
+    return null;
+  }
+
   return (
     <Dropdown
       className={classes('ui--DropdownLinked-Items', className)}
diff --git a/packages/react-components/src/InputNumber.tsx b/packages/react-components/src/InputNumber.tsx
index 8878153069..8aec4e3222 100644
--- a/packages/react-components/src/InputNumber.tsx
+++ b/packages/react-components/src/InputNumber.tsx
@@ -206,15 +206,19 @@ function InputNumber (props: Props): React.ReactElement<Props> {
 
   useEffect((): void => {
     propsValue && isNewPropsValue(propsValue, value, valueBn) && setValues(getValues(propsValue, si, props));
+  // ummmm...
+  // eslint-disable-next-line react-hooks/exhaustive-deps
   }, [propsValue]);
 
   useEffect((): void => {
     setValues(getValues(value, si, props));
+  // ummmm...
+  // eslint-disable-next-line react-hooks/exhaustive-deps
   }, [value, si, bitLength, maxValue]);
 
   useEffect((): void => {
     onChange && onChange(valueBn);
-  }, [valueBn]);
+  }, [onChange, valueBn]);
 
   const _onChange = (input: string): void => {
     setValues(getValuesFromString(input, si, props));
diff --git a/packages/react-components/src/Tooltip.tsx b/packages/react-components/src/Tooltip.tsx
index 99a29aba66..3670bd7bfa 100644
--- a/packages/react-components/src/Tooltip.tsx
+++ b/packages/react-components/src/Tooltip.tsx
@@ -46,6 +46,7 @@ function Tooltip ({ className, effect = 'solid', offset, place = 'top', text, tr
         rootElement.removeChild(tooltipContainer);
       }
     };
+  // eslint-disable-next-line react-hooks/exhaustive-deps
   }, []);
 
   return ReactDOM.createPortal(
diff --git a/packages/react-components/src/TreasuryProposal.tsx b/packages/react-components/src/TreasuryProposal.tsx
index 9e69432e07..1f60de51a1 100644
--- a/packages/react-components/src/TreasuryProposal.tsx
+++ b/packages/react-components/src/TreasuryProposal.tsx
@@ -38,7 +38,7 @@ function TreasuryProposal ({ className, asInset, insetProps, onClick, proposal,
     } else {
       setProposal(proposal || null);
     }
-  }, [proposal, proposalId]);
+  }, [api, proposal, proposalId]);
 
   if (!stateProposal) {
     return null;
diff --git a/packages/react-components/src/VoteValue.tsx b/packages/react-components/src/VoteValue.tsx
index ac7ff9a075..546a17a751 100644
--- a/packages/react-components/src/VoteValue.tsx
+++ b/packages/react-components/src/VoteValue.tsx
@@ -54,7 +54,7 @@ function VoteValue ({ accountId, autoFocus, onChange }: Props): React.ReactEleme
   // only do onChange to parent when the BN value comes in, not our formatted version
   useEffect((): void => {
     isBn(value) && onChange(value);
-  }, [value]);
+  }, [onChange, value]);
 
   const _setValue = useCallback(
     (value?: BN): void => setValue({ selectedId, value }),
diff --git a/packages/react-hooks/src/index.ts b/packages/react-hooks/src/index.ts
index 3a963f4e3e..b2666d45a3 100644
--- a/packages/react-hooks/src/index.ts
+++ b/packages/react-hooks/src/index.ts
@@ -20,4 +20,3 @@ export { default as usePassword } from './usePassword';
 export { default as useRegistrars } from './useRegistrars';
 export { default as useSudo } from './useSudo';
 export { default as useToggle } from './useToggle';
-export { default as useTx } from './useTx';
diff --git a/packages/react-hooks/src/useAccountId.ts b/packages/react-hooks/src/useAccountId.ts
index 80c13a5fad..1275ca859a 100644
--- a/packages/react-hooks/src/useAccountId.ts
+++ b/packages/react-hooks/src/useAccountId.ts
@@ -8,13 +8,14 @@ import { useCallback, useState } from 'react';
 
 export default function useAccountId (initialValue: StringOrNull = null, onChangeAccountId?: (_: StringOrNull) => void): [StringOrNull, (_: StringOrNull) => void] {
   const [accountId, setAccountId] = useState<StringOrNull>(initialValue);
+
   const _setAccountId = useCallback(
     (accountId: StringOrNull = null): void => {
       setAccountId(accountId);
 
       onChangeAccountId && onChangeAccountId(accountId);
     },
-    []
+    [onChangeAccountId]
   );
 
   return [accountId, _setAccountId];
diff --git a/packages/react-hooks/src/useAccounts.ts b/packages/react-hooks/src/useAccounts.ts
index 0a0bb651f1..3adc7af312 100644
--- a/packages/react-hooks/src/useAccounts.ts
+++ b/packages/react-hooks/src/useAccounts.ts
@@ -29,6 +29,7 @@ export default function useAccounts (): UseAccounts {
     return (): void => {
       setTimeout(() => subscription.unsubscribe(), 0);
     };
+  // eslint-disable-next-line react-hooks/exhaustive-deps
   }, []);
 
   return state;
diff --git a/packages/react-hooks/src/useAddresses.ts b/packages/react-hooks/src/useAddresses.ts
index b2a5809f3e..013e0c3b94 100644
--- a/packages/react-hooks/src/useAddresses.ts
+++ b/packages/react-hooks/src/useAddresses.ts
@@ -29,6 +29,7 @@ export default function useAccounts (): UseAccounts {
     return (): void => {
       setTimeout(() => subscription.unsubscribe(), 0);
     };
+  // eslint-disable-next-line react-hooks/exhaustive-deps
   }, []);
 
   return state;
diff --git a/packages/react-hooks/src/useCacheKey.ts b/packages/react-hooks/src/useCacheKey.ts
index 2a30b35952..faffbc17d9 100644
--- a/packages/react-hooks/src/useCacheKey.ts
+++ b/packages/react-hooks/src/useCacheKey.ts
@@ -2,7 +2,7 @@
 // This software may be modified and distributed under the terms
 // of the Apache-2.0 license. See the LICENSE file for details.
 
-import { useCallback } from 'react';
+import { useCallback, useMemo } from 'react';
 
 import store from 'store';
 import useApi from './useApi';
@@ -10,9 +10,12 @@ import useApi from './useApi';
 // create a chain-specific key for the local cache
 export default function useCacheKey <T> (storageKeyBase: string): [(defaultValue?: T) => T | undefined, (value: T) => T] {
   const { api, isDevelopment } = useApi();
-  const STORAGE_KEY = `${storageKeyBase}:${isDevelopment ? 'development' : api.genesisHash}`;
-  const getter = useCallback((): T | undefined => store.get(STORAGE_KEY), []);
-  const setter = useCallback((value: T): T => store.set(STORAGE_KEY, value), []);
+  const storageKey = useMemo(
+    () => `${storageKeyBase}:${isDevelopment ? 'development' : api.genesisHash}`,
+    [api, isDevelopment, storageKeyBase]
+  );
+  const getter = useCallback((): T | undefined => store.get(storageKey), [storageKey]);
+  const setter = useCallback((value: T): T => store.set(storageKey, value), [storageKey]);
 
   return [getter, setter];
 }
diff --git a/packages/react-hooks/src/useCall.ts b/packages/react-hooks/src/useCall.ts
index 22d9322c4f..d7d84ba442 100644
--- a/packages/react-hooks/src/useCall.ts
+++ b/packages/react-hooks/src/useCall.ts
@@ -125,7 +125,7 @@ export default function useCall <T> (fn: TrackFn | undefined | null | false, par
         subscribe(mountedRef, tracker, fn, mappedParams, setValue, options);
       }
     }
-  }, [fn, params]);
+  }, [fn, options, mountedRef, params]);
 
   return value;
 }
diff --git a/packages/react-hooks/src/useDebounce.ts b/packages/react-hooks/src/useDebounce.ts
index 13a05931d6..8eb46bdfc3 100644
--- a/packages/react-hooks/src/useDebounce.ts
+++ b/packages/react-hooks/src/useDebounce.ts
@@ -6,21 +6,23 @@ import { useState, useEffect } from 'react';
 
 import useIsMountedRef from './useIsMountedRef';
 
+const DEFAULT_DELAY = 250;
+
 // Debounces inputs
-export default function useDebounce <T> (value: T, delay = 250): T {
+export default function useDebounce <T> (value: T, delay?: number): T {
   const mountedRef = useIsMountedRef();
   const [debouncedValue, setDebouncedValue] = useState(value);
 
   useEffect((): () => void => {
     const handler = setTimeout(() => {
       mountedRef.current && setDebouncedValue(value);
-    }, delay);
+    }, delay || DEFAULT_DELAY);
 
     // each time it renders, it clears
     return (): void => {
       clearTimeout(handler);
     };
-  }, [value]);
+  }, [delay, value, mountedRef]);
 
   return debouncedValue;
 }
diff --git a/packages/react-hooks/src/useFavorites.ts b/packages/react-hooks/src/useFavorites.ts
index 9074f9b5cd..850b6300a0 100644
--- a/packages/react-hooks/src/useFavorites.ts
+++ b/packages/react-hooks/src/useFavorites.ts
@@ -10,6 +10,7 @@ import useCacheKey from './useCacheKey';
 export default function useFavorites (storageKeyBase: string): [string[], (address: string) => void] {
   const [getCache, setCache] = useCacheKey<string[]>(storageKeyBase);
   const [favorites, setFavorites] = useState<string[]>(getCache() || []);
+
   const toggleFavorite = useCallback(
     (address: string): void => setFavorites(
       (favorites: string[]) => setCache(
@@ -18,7 +19,7 @@ export default function useFavorites (storageKeyBase: string): [string[], (addre
           : [...favorites, address]
       )
     ),
-    []
+    [setCache]
   );
 
   return [favorites, toggleFavorite];
diff --git a/packages/react-hooks/src/useFormField.ts b/packages/react-hooks/src/useFormField.ts
index 3d024a2da2..d7815fd76f 100644
--- a/packages/react-hooks/src/useFormField.ts
+++ b/packages/react-hooks/src/useFormField.ts
@@ -18,7 +18,7 @@ export default function useFormField<T> (defaultValue: T | null, validate: (_?:
   const [value, setValue] = useState<T | null>(defaultValue);
   const isValid = useMemo(
     (): boolean => isTruthy<T>(value) && validate(value),
-    [value]
+    [validate, value]
   );
   const setter = useCallback((value?: T | null): void => setValue(value || null), []);
 
diff --git a/packages/react-hooks/src/useIsMountedRef.ts b/packages/react-hooks/src/useIsMountedRef.ts
index a471529709..739ba2ac54 100644
--- a/packages/react-hooks/src/useIsMountedRef.ts
+++ b/packages/react-hooks/src/useIsMountedRef.ts
@@ -4,9 +4,7 @@
 
 import { useEffect, useRef } from 'react';
 
-export interface MountedRef {
-  current: boolean;
-}
+export type MountedRef = React.MutableRefObject<boolean>;
 
 export default function useIsMountedRef (): MountedRef {
   const isMounted = useRef(false);
diff --git a/packages/react-hooks/src/useMembers.ts b/packages/react-hooks/src/useMembers.ts
index 2301f7f3f1..e4ce529e4c 100644
--- a/packages/react-hooks/src/useMembers.ts
+++ b/packages/react-hooks/src/useMembers.ts
@@ -18,10 +18,12 @@ export default function useMembers (collective: 'council' | 'technicalCommittee'
   const [state, setState] = useState<Result>({ isMember: false, members: [] });
   const retrieved = (
     collective === 'council'
+      // eslint-disable-next-line react-hooks/rules-of-hooks
       ? useCall<string[]>(api.query.electionsPhragmen?.members || api.query.elections.members, [], {
         transform: (accounts: [AccountId, Balance][]): string[] =>
           accounts.map(([accountId]) => accountId.toString())
       })
+      // eslint-disable-next-line react-hooks/rules-of-hooks
       : useCall<string[]>(api.query.technicalCommittee.members, [], {
         transform: (accounts: AccountId[]): string[] =>
           accounts.map((accountId) => accountId.toString())
diff --git a/packages/react-hooks/src/useModal.ts b/packages/react-hooks/src/useModal.ts
index 2712503730..b3244fbb55 100644
--- a/packages/react-hooks/src/useModal.ts
+++ b/packages/react-hooks/src/useModal.ts
@@ -16,7 +16,7 @@ export default function useModal (defaultIsOpen?: boolean, onOpen?: () => void,
 
       onOpen && onOpen();
     },
-    []
+    [onOpen, setIsOpen]
   );
   const _onClose = useCallback(
     (): void => {
@@ -24,7 +24,7 @@ export default function useModal (defaultIsOpen?: boolean, onOpen?: () => void,
 
       onClose && onClose();
     },
-    []
+    [onClose, setIsOpen]
   );
 
   return { isOpen, onClose: _onClose, onOpen: _onOpen };
diff --git a/packages/react-hooks/src/useOwnEraRewards.ts b/packages/react-hooks/src/useOwnEraRewards.ts
index 7f8c009c54..c8e17edb6f 100644
--- a/packages/react-hooks/src/useOwnEraRewards.ts
+++ b/packages/react-hooks/src/useOwnEraRewards.ts
@@ -41,7 +41,7 @@ function useNextPayouts (onlyLatest?: boolean): [string, BN][] | undefined {
           : lastPayouts
       );
     }
-  }, [allInfo, indexes, onlyLatest, stashIds]);
+  }, [allInfo, indexes, mountedRef, onlyLatest, stashIds]);
 
   return nextPayouts;
 }
@@ -75,7 +75,7 @@ export default function useOwnEraRewards (onlyLatest?: boolean): OwnRewards {
     mountedRef.current && available && nextPayouts && setState(
       getRewards(available, nextPayouts)
     );
-  }, [available, nextPayouts]);
+  }, [available, mountedRef, nextPayouts]);
 
   return state;
 }
diff --git a/packages/react-hooks/src/useOwnStashes.ts b/packages/react-hooks/src/useOwnStashes.ts
index 7e35d77f70..155e6ba967 100644
--- a/packages/react-hooks/src/useOwnStashes.ts
+++ b/packages/react-hooks/src/useOwnStashes.ts
@@ -44,7 +44,7 @@ export default function useOwnStashes (): [string, IsInKeyring][] | undefined {
     mountedRef.current && allAccounts && ownBonded && ownLedger && setState(
       getStashes(allAccounts, ownBonded, ownLedger)
     );
-  }, [allAccounts, ownBonded, ownLedger]);
+  }, [allAccounts, mountedRef, ownBonded, ownLedger]);
 
   return state;
 }
@@ -58,7 +58,7 @@ export function useOwnStashIds (): string[] | undefined {
     mountedRef.current && ownStashes && setStashIds(
       ownStashes.map(([stashId]) => stashId)
     );
-  }, [ownStashes]);
+  }, [mountedRef, ownStashes]);
 
   return stashIds;
 }
diff --git a/packages/react-hooks/src/useTx.ts b/packages/react-hooks/src/useTx.ts
deleted file mode 100644
index 385925e333..0000000000
--- a/packages/react-hooks/src/useTx.ts
+++ /dev/null
@@ -1,115 +0,0 @@
-// Copyright 2017-2020 @polkadot/react-hooks authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
-
-import { StringOrNull } from '@polkadot/react-components/types';
-import { Call } from '@polkadot/types/interfaces';
-import { ExtrinsicAndSenders, TxDef, TxDefs, TxSource, TxProps, TxState } from './types';
-
-import { useContext, useMemo, useState } from 'react';
-import { ApiPromise } from '@polkadot/api';
-import { StatusContext } from '@polkadot/react-components/Status';
-import { SubmittableExtrinsic } from '@polkadot/api/promise/types';
-import { assert, isFunction } from '@polkadot/util';
-import useApi from './useApi';
-
-function getExtrinsic<T extends TxDefs> (api: ApiPromise, txDef: T): SubmittableExtrinsic | null {
-  if (!txDef) {
-    return null;
-  }
-
-  if (Array.isArray(txDef)) {
-    const [section, method] = txDef[0].split('.');
-
-    assert(api.tx[section] && api.tx[section][method], `Unable to find api.tx.${section}.${method}`);
-
-    try {
-      return api.tx[section][method](...(
-        isFunction(txDef[1])
-          ? txDef[1]()
-          : txDef[1]
-      )) as any as SubmittableExtrinsic;
-    } catch (e) {
-      return null;
-    }
-  } else {
-    if ((txDef as Call).callIndex) {
-      const fn = api.findCall(txDef.callIndex);
-
-      return api.tx[fn.section][fn.method](...txDef.args);
-    }
-
-    return txDef as any as SubmittableExtrinsic;
-  }
-}
-
-export default function useTx<T extends TxDef> (memoFn: (...args: any[]) => TxSource<T>, memoArr: any[], { accountId: anAccountId, onChangeAccountId, onStart, onSuccess, onFailed, onUpdate }: TxProps = {}): TxState {
-  const { queueExtrinsic } = useContext(StatusContext);
-  const { api } = useApi();
-  const txSource = useMemo(memoFn, memoArr);
-  const [accountId, setAccountId] = useState<StringOrNull>(anAccountId || null);
-  const [isSending, setIsSending] = useState(false);
-
-  const _onStart = (): void => {
-    setIsSending(true);
-
-    onStart && onStart();
-  };
-
-  const _onSuccess = (): void => {
-    setIsSending(false);
-
-    onSuccess && onSuccess();
-  };
-
-  const _onFailed = (): void => {
-    setIsSending(false);
-
-    onFailed && onFailed();
-  };
-
-  const _onUpdate = (): void => {
-    setIsSending(false);
-
-    onUpdate && onUpdate();
-  };
-
-  function getExtrinsicAndSenders (api: ApiPromise, accountId: StringOrNull, [txDef, isSubmittable]: TxSource<T>): ExtrinsicAndSenders {
-    const extrinsic = getExtrinsic<T>(api, txDef);
-
-    function _sendTx (isUnsigned?: boolean): void {
-      !!extrinsic && isSubmittable && queueExtrinsic({
-        accountId,
-        extrinsic,
-        isUnsigned,
-        txFailedCb: _onFailed,
-        txStartCb: _onStart,
-        txSuccessCb: _onSuccess,
-        txUpdateCb: _onUpdate
-      });
-    }
-
-    return {
-      extrinsic,
-      isSubmittable: !!accountId && !!extrinsic && isSubmittable,
-      sendTx: (): void => _sendTx(),
-      sendUnsigned: (): void => _sendTx(true)
-    };
-  }
-
-  const txAndSenders = useMemo<ExtrinsicAndSenders>(
-    (): ExtrinsicAndSenders => getExtrinsicAndSenders(api, accountId, txSource),
-    [accountId, txSource]
-  );
-
-  return {
-    ...txAndSenders,
-    isSending,
-    accountId,
-    onChangeAccountId: (accountId: StringOrNull): void => {
-      setAccountId(accountId);
-
-      onChangeAccountId && onChangeAccountId(accountId);
-    }
-  };
-}
diff --git a/packages/react-params/src/Param/Balance.tsx b/packages/react-params/src/Param/Balance.tsx
index 95cf43bae3..92a1dbe78e 100644
--- a/packages/react-params/src/Param/Balance.tsx
+++ b/packages/react-params/src/Param/Balance.tsx
@@ -18,7 +18,7 @@ function Balance ({ className, defaultValue: { value }, isDisabled, isError, lab
         isValid: !isError && !!value,
         value
       }),
-    [isError]
+    [isError, onChange]
   );
 
   return (
diff --git a/packages/react-params/src/Param/BaseBytes.tsx b/packages/react-params/src/Param/BaseBytes.tsx
index 392e443948..8348bf107e 100644
--- a/packages/react-params/src/Param/BaseBytes.tsx
+++ b/packages/react-params/src/Param/BaseBytes.tsx
@@ -55,7 +55,7 @@ function BaseBytes ({ asHex, children, className, defaultValue: { value }, isDis
           : true
       )
     );
-  }, [length, value]);
+  }, [length, validate, value]);
 
   const _onChange = useCallback(
     (hex: string): void => {
@@ -80,7 +80,7 @@ function BaseBytes ({ asHex, children, className, defaultValue: { value }, isDis
 
       setIsValid(isValid);
     },
-    [withLength]
+    [asHex, length, onChange, validate, withLength]
   );
 
   const defaultValue = value
diff --git a/packages/react-params/src/Param/Bytes.tsx b/packages/react-params/src/Param/Bytes.tsx
index ae759985c5..565f4135ca 100644
--- a/packages/react-params/src/Param/Bytes.tsx
+++ b/packages/react-params/src/Param/Bytes.tsx
@@ -25,7 +25,7 @@ function Bytes ({ className, defaultValue, isDisabled, isError, label, name, onC
         value: Compact.addLengthPrefix(value)
       });
     },
-    []
+    [onChange]
   );
 
   return !isDisabled && isFileDrop
diff --git a/packages/react-params/src/Param/DispatchError.tsx b/packages/react-params/src/Param/DispatchError.tsx
index d2eea61e48..4d53871e8b 100644
--- a/packages/react-params/src/Param/DispatchError.tsx
+++ b/packages/react-params/src/Param/DispatchError.tsx
@@ -38,7 +38,7 @@ function ErrorDisplay (props: Props): React.ReactElement<Props> {
         setDetails({ details: null });
       }
     }
-  }, [props.defaultValue]);
+  }, [details, props.defaultValue]);
 
   if (!props.isDisabled || !details) {
     return <Unknown {...props} />;
diff --git a/packages/react-params/src/Param/Enum.tsx b/packages/react-params/src/Param/Enum.tsx
index 10cdb0e150..62028f81d4 100644
--- a/packages/react-params/src/Param/Enum.tsx
+++ b/packages/react-params/src/Param/Enum.tsx
@@ -70,7 +70,7 @@ function EnumParam (props: Props): React.ReactElement<Props> {
         value: { [current[0].name as string]: value }
       });
     },
-    [current]
+    [current, onChange]
   );
 
   if (isDisabled) {
diff --git a/packages/react-params/src/Param/KeyValue.tsx b/packages/react-params/src/Param/KeyValue.tsx
index 2b05b3e1fa..5dbd0967a8 100644
--- a/packages/react-params/src/Param/KeyValue.tsx
+++ b/packages/react-params/src/Param/KeyValue.tsx
@@ -48,7 +48,7 @@ function KeyValue ({ className, isDisabled, label, onChange, onEnter, style, wit
         value.u8a
       )
     });
-  }, [key, value]);
+  }, [key, onChange, value]);
 
   const _onChangeKey = useCallback(
     (key: string): void => setKey(createParam(key)),
diff --git a/packages/react-params/src/Param/KeyValueArray.tsx b/packages/react-params/src/Param/KeyValueArray.tsx
index 6b1967fa98..0d153308da 100644
--- a/packages/react-params/src/Param/KeyValueArray.tsx
+++ b/packages/react-params/src/Param/KeyValueArray.tsx
@@ -77,7 +77,7 @@ function KeyValueArray ({ className, defaultValue, isDisabled, isError, label, o
 
       onChange && onChange(encoded);
     },
-    []
+    [onChange, t]
   );
 
   if (isDisabled) {
diff --git a/packages/react-params/src/Param/Null.tsx b/packages/react-params/src/Param/Null.tsx
index 073b28de15..06ea48877c 100644
--- a/packages/react-params/src/Param/Null.tsx
+++ b/packages/react-params/src/Param/Null.tsx
@@ -12,7 +12,7 @@ function Null ({ onChange }: Props): React.ReactElement<Props> | null {
       isValid: true,
       value: null
     });
-  }, []);
+  }, [onChange]);
 
   return null;
 }
diff --git a/packages/react-params/src/Param/Option.tsx b/packages/react-params/src/Param/Option.tsx
index 8137dde284..eb23fa2f01 100644
--- a/packages/react-params/src/Param/Option.tsx
+++ b/packages/react-params/src/Param/Option.tsx
@@ -21,7 +21,7 @@ function Option ({ className, defaultValue, isDisabled, name, onChange, onEnter,
       isValid: true,
       value: null
     });
-  }, [isActive]);
+  }, [isActive, onChange]);
 
   return (
     <div className={className}>
diff --git a/packages/react-params/src/Param/Struct.tsx b/packages/react-params/src/Param/Struct.tsx
index 44ff5d348f..db322086e9 100644
--- a/packages/react-params/src/Param/Struct.tsx
+++ b/packages/react-params/src/Param/Struct.tsx
@@ -29,10 +29,6 @@ function StructParam (props: Props): React.ReactElement<Props> {
     setParams((typeDef.sub as TypeDef[]).map((type): ParamDef => ({ name: type.name, type })));
   }, [type]);
 
-  if (isDisabled) {
-    return <Static {...props} />;
-  }
-
   const _onChangeParams = useCallback(
     (values: RawParam[]): void => {
       onChange && onChange({
@@ -44,9 +40,13 @@ function StructParam (props: Props): React.ReactElement<Props> {
         }, {})
       });
     },
-    [params]
+    [params, onChange]
   );
 
+  if (isDisabled) {
+    return <Static {...props} />;
+  }
+
   return (
     <div className='ui--Params-Struct'>
       <Base
diff --git a/packages/react-params/src/Param/Tuple.tsx b/packages/react-params/src/Param/Tuple.tsx
index 363200431f..516158eaef 100644
--- a/packages/react-params/src/Param/Tuple.tsx
+++ b/packages/react-params/src/Param/Tuple.tsx
@@ -28,10 +28,6 @@ function Tuple (props: Props): React.ReactElement<Props> {
     }
   }, [type]);
 
-  if (isDisabled) {
-    return <Static {...props} />;
-  }
-
   const _onChangeParams = useCallback(
     (values: RawParam[]): void => {
       onChange && onChange({
@@ -39,9 +35,13 @@ function Tuple (props: Props): React.ReactElement<Props> {
         value: values.map(({ value }): any => value)
       });
     },
-    []
+    [onChange]
   );
 
+  if (isDisabled) {
+    return <Static {...props} />;
+  }
+
   return (
     <div className='ui--Params-Tuple'>
       <Base
diff --git a/packages/react-params/src/Param/Vector.tsx b/packages/react-params/src/Param/Vector.tsx
index a3bb5e9d6d..535995d4dd 100644
--- a/packages/react-params/src/Param/Vector.tsx
+++ b/packages/react-params/src/Param/Vector.tsx
@@ -78,7 +78,7 @@ function Vector ({ className, defaultValue, isDisabled = false, label, onChange,
       isValid: values.reduce((result: boolean, { isValid }): boolean => result && isValid, true),
       value: values.map(({ value }): any => value)
     });
-  }, [values]);
+  }, [values, onChange]);
 
   const _rowAdd = useCallback(
     (): void => setCount((count) => count + 1),
diff --git a/packages/react-params/src/ParamComp.tsx b/packages/react-params/src/ParamComp.tsx
index c63e29acda..cd13ea3bc9 100644
--- a/packages/react-params/src/ParamComp.tsx
+++ b/packages/react-params/src/ParamComp.tsx
@@ -24,8 +24,9 @@ interface Props {
 
 function ParamComp ({ defaultValue, index, isDisabled, name, onChange, onEnter, onEscape, overrides, type }: Props): React.ReactElement<Props> {
   const _onChange = useCallback(
-    (value: RawParamOnChangeValue): void => onChange(index, value),
-    [index]
+    (value: RawParamOnChangeValue): void =>
+      onChange(index, value),
+    [index, onChange]
   );
 
   return (
diff --git a/packages/react-query/src/BlockAuthors.tsx b/packages/react-query/src/BlockAuthors.tsx
index 9c2a10a82b..383815d8eb 100644
--- a/packages/react-query/src/BlockAuthors.tsx
+++ b/packages/react-query/src/BlockAuthors.tsx
@@ -74,6 +74,7 @@ function BlockAuthorsBase ({ children }: Props): React.ReactElement<Props> {
         }
       });
     });
+  // eslint-disable-next-line react-hooks/exhaustive-deps
   }, []);
 
   return (
diff --git a/packages/react-query/src/Events.tsx b/packages/react-query/src/Events.tsx
index aba0491bab..783688d359 100644
--- a/packages/react-query/src/Events.tsx
+++ b/packages/react-query/src/Events.tsx
@@ -48,6 +48,7 @@ function EventsBase ({ children }: Props): React.ReactElement<Props> {
         }
       });
     });
+  // eslint-disable-next-line react-hooks/exhaustive-deps
   }, []);
 
   return (
diff --git a/packages/react-signer/src/Checks/ContractCall.tsx b/packages/react-signer/src/Checks/ContractCall.tsx
index 46a61d66c8..32114a083e 100644
--- a/packages/react-signer/src/Checks/ContractCall.tsx
+++ b/packages/react-signer/src/Checks/ContractCall.tsx
@@ -16,7 +16,7 @@ interface Props {
 }
 
 function ContractCall ({ endowment, fees, onChange }: Props): React.ReactElement<Props> | null {
-  const [state, setState] = useState<State>({
+  const [, setState] = useState<State>({
     extraFees: new BN(0),
     extraAmount: new BN(0),
     extraWarn: false
@@ -34,12 +34,14 @@ function ContractCall ({ endowment, fees, onChange }: Props): React.ReactElement
       extraWarn: false
     };
 
-    if (!update.extraAmount.eq(state.extraAmount) || !update.extraFees.eq(state.extraFees)) {
-      onChange(update);
-    }
+    setState((state): State => {
+      if (!update.extraAmount.eq(state.extraAmount) || !update.extraFees.eq(state.extraFees)) {
+        onChange(update);
+      }
 
-    setState(update);
-  }, [endowment, fees]);
+      return update;
+    });
+  }, [endowment, fees, onChange]);
 
   return null;
 }
diff --git a/packages/react-signer/src/Checks/ContractDeploy.tsx b/packages/react-signer/src/Checks/ContractDeploy.tsx
index 9c92d9d327..d843288380 100644
--- a/packages/react-signer/src/Checks/ContractDeploy.tsx
+++ b/packages/react-signer/src/Checks/ContractDeploy.tsx
@@ -16,7 +16,7 @@ interface Props {
 }
 
 function ContractDeploy ({ endowment, fees, onChange }: Props): React.ReactElement<Props> | null {
-  const [state, setState] = useState<State>({
+  const [, setState] = useState<State>({
     extraFees: new BN(0),
     extraAmount: new BN(0),
     extraWarn: false
@@ -34,12 +34,14 @@ function ContractDeploy ({ endowment, fees, onChange }: Props): React.ReactEleme
       extraWarn: false
     };
 
-    if (!update.extraAmount.eq(state.extraAmount) || !update.extraFees.eq(state.extraFees)) {
-      onChange(update);
-    }
+    setState((state): State => {
+      if (!update.extraAmount.eq(state.extraAmount) || !update.extraFees.eq(state.extraFees)) {
+        onChange(update);
+      }
 
-    setState(update);
-  }, [endowment, fees]);
+      return update;
+    });
+  }, [endowment, fees, onChange]);
 
   return null;
 }
diff --git a/packages/react-signer/src/Checks/Proposal.tsx b/packages/react-signer/src/Checks/Proposal.tsx
index 9692812daf..d37c074e7d 100644
--- a/packages/react-signer/src/Checks/Proposal.tsx
+++ b/packages/react-signer/src/Checks/Proposal.tsx
@@ -57,7 +57,7 @@ function Proposal ({ deposit, onChange }: Props): React.ReactElement<Props> {
         isBelowMinimum
       });
     }
-  }, [minDeposit]);
+  }, [deposit, minDeposit, onChange]);
 
   return (
     <>
diff --git a/packages/react-signer/src/Checks/Transfer.tsx b/packages/react-signer/src/Checks/Transfer.tsx
index 6e4a2e0e01..dfdf2f3cce 100644
--- a/packages/react-signer/src/Checks/Transfer.tsx
+++ b/packages/react-signer/src/Checks/Transfer.tsx
@@ -61,7 +61,7 @@ function Transfer ({ amount, fees, onChange, recipientId }: Props): React.ReactE
         isNoEffect
       });
     }
-  }, [amount, allBalances, fees]);
+  }, [amount, allBalances, fees, onChange]);
 
   return (
     <>
diff --git a/yarn.lock b/yarn.lock
index 743593a05d..8b0fc6c788 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1031,9 +1031,9 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@babel/plugin-transform-react-jsx@npm:^7.9.1":
-  version: 7.9.1
-  resolution: "@babel/plugin-transform-react-jsx@npm:7.9.1"
+"@babel/plugin-transform-react-jsx@npm:^7.9.4":
+  version: 7.9.4
+  resolution: "@babel/plugin-transform-react-jsx@npm:7.9.4"
   dependencies:
     "@babel/helper-builder-react-jsx": ^7.9.0
     "@babel/helper-builder-react-jsx-experimental": ^7.9.0
@@ -1041,7 +1041,7 @@ __metadata:
     "@babel/plugin-syntax-jsx": ^7.8.3
   peerDependencies:
     "@babel/core": ^7.0.0-0
-  checksum: 2/62a170ee3e06176686a123f6a056e761c555b7127b34b73643b8ef63c403a88eb2ada616e1ed47a73608ebe620018abbbcde9f652ec2afddc39b9e378c093fdf
+  checksum: 2/e9e6f0499442577a3dd12ad64d41de31a23646653b9ad4857d1df5e354528d4c639419ebd911f324803b4e0d0ebed2a147d93f13afe1f4bc5bb9bed5cd56f2f4
   languageName: node
   linkType: hard
 
@@ -1258,19 +1258,19 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@babel/preset-react@npm:^7.9.1":
-  version: 7.9.1
-  resolution: "@babel/preset-react@npm:7.9.1"
+"@babel/preset-react@npm:^7.9.4":
+  version: 7.9.4
+  resolution: "@babel/preset-react@npm:7.9.4"
   dependencies:
     "@babel/helper-plugin-utils": ^7.8.3
     "@babel/plugin-transform-react-display-name": ^7.8.3
-    "@babel/plugin-transform-react-jsx": ^7.9.1
+    "@babel/plugin-transform-react-jsx": ^7.9.4
     "@babel/plugin-transform-react-jsx-development": ^7.9.0
     "@babel/plugin-transform-react-jsx-self": ^7.9.0
     "@babel/plugin-transform-react-jsx-source": ^7.9.0
   peerDependencies:
     "@babel/core": ^7.0.0-0
-  checksum: 2/40986497972b9743558a408a78157ef6aec05374e5f130b7bab29dc4eaf49c8934116fb83ae17648bf679212a17d2469b37d338057ab282dced0fd9f1051cbce
+  checksum: 2/1c5bc153630dc16af04c0e00842feebc229197bf73e51e1032064972f72f799fe1c9816ee7e52eb2d1a8d00ce7e926a41e56f8e7d94e8d6a56dfcdc1e827b92a
   languageName: node
   linkType: hard
 
@@ -1560,88 +1560,87 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@jest/console@npm:^25.1.0":
-  version: 25.1.0
-  resolution: "@jest/console@npm:25.1.0"
+"@jest/console@npm:^25.2.3":
+  version: 25.2.3
+  resolution: "@jest/console@npm:25.2.3"
   dependencies:
-    "@jest/source-map": ^25.1.0
+    "@jest/source-map": ^25.2.1
     chalk: ^3.0.0
-    jest-util: ^25.1.0
+    jest-util: ^25.2.3
     slash: ^3.0.0
-  checksum: 2/3986255b0405457ab45a122641d8a6d68212ef65b62dbb020d071c0d9136544aa221f7260ad8d313e5caadd2f05f826d0cf9301cd64a7991cef844350abbdc0d
+  checksum: 2/b5841a78849487540cd18aad909df9f04af6cf2d0603ff24ee7e8ff32b15212b9c5c525618808b9c00c0e504084b6da415dd5cf729302ed8e2f79502c0236176
   languageName: node
   linkType: hard
 
-"@jest/core@npm:^25.1.0":
-  version: 25.1.0
-  resolution: "@jest/core@npm:25.1.0"
+"@jest/core@npm:^25.2.3":
+  version: 25.2.3
+  resolution: "@jest/core@npm:25.2.3"
   dependencies:
-    "@jest/console": ^25.1.0
-    "@jest/reporters": ^25.1.0
-    "@jest/test-result": ^25.1.0
-    "@jest/transform": ^25.1.0
-    "@jest/types": ^25.1.0
+    "@jest/console": ^25.2.3
+    "@jest/reporters": ^25.2.3
+    "@jest/test-result": ^25.2.3
+    "@jest/transform": ^25.2.3
+    "@jest/types": ^25.2.3
     ansi-escapes: ^4.2.1
     chalk: ^3.0.0
     exit: ^0.1.2
     graceful-fs: ^4.2.3
-    jest-changed-files: ^25.1.0
-    jest-config: ^25.1.0
-    jest-haste-map: ^25.1.0
-    jest-message-util: ^25.1.0
-    jest-regex-util: ^25.1.0
-    jest-resolve: ^25.1.0
-    jest-resolve-dependencies: ^25.1.0
-    jest-runner: ^25.1.0
-    jest-runtime: ^25.1.0
-    jest-snapshot: ^25.1.0
-    jest-util: ^25.1.0
-    jest-validate: ^25.1.0
-    jest-watcher: ^25.1.0
+    jest-changed-files: ^25.2.3
+    jest-config: ^25.2.3
+    jest-haste-map: ^25.2.3
+    jest-message-util: ^25.2.3
+    jest-regex-util: ^25.2.1
+    jest-resolve: ^25.2.3
+    jest-resolve-dependencies: ^25.2.3
+    jest-runner: ^25.2.3
+    jest-runtime: ^25.2.3
+    jest-snapshot: ^25.2.3
+    jest-util: ^25.2.3
+    jest-validate: ^25.2.3
+    jest-watcher: ^25.2.3
     micromatch: ^4.0.2
     p-each-series: ^2.1.0
-    realpath-native: ^1.1.0
+    realpath-native: ^2.0.0
     rimraf: ^3.0.0
     slash: ^3.0.0
     strip-ansi: ^6.0.0
-  checksum: 2/f81391954e7ce1a4db9669ca35bb2b2ac411f000f97e2ccd1f72509f6a6d9106ddf613f86b10613e35156f7462ad5bd8e7e75fe6b924f346a86b3b00820f4d4b
+  checksum: 2/402fea735abdd435b062276dfbe5d1fdfe8c2b9077eaf4119fa6c681573268f79bb9312329a747c5586ca70c731a55b6434a16e7737f2db3102f24bd904dbcd5
   languageName: node
   linkType: hard
 
-"@jest/environment@npm:^25.1.0":
-  version: 25.1.0
-  resolution: "@jest/environment@npm:25.1.0"
+"@jest/environment@npm:^25.2.3":
+  version: 25.2.3
+  resolution: "@jest/environment@npm:25.2.3"
   dependencies:
-    "@jest/fake-timers": ^25.1.0
-    "@jest/types": ^25.1.0
-    jest-mock: ^25.1.0
-  checksum: 2/8500504cb84c5cfc358790ea37b86be7e4edcc1e5d0667f60b45755531c5d47b3d97c89297d439cb07ebf8d47aa83c1db75fadcd384e09ff2f690d44b292675a
+    "@jest/fake-timers": ^25.2.3
+    "@jest/types": ^25.2.3
+    jest-mock: ^25.2.3
+  checksum: 2/aeeba5d16ec8d6542f94070811accc539e5e3b4ac7689f6cc45f1159c808a49d2b2917d16be2ae56aa1d8cdfc150d99413e593913ac523c675791fdc5ab63f8c
   languageName: node
   linkType: hard
 
-"@jest/fake-timers@npm:^25.1.0":
-  version: 25.1.0
-  resolution: "@jest/fake-timers@npm:25.1.0"
+"@jest/fake-timers@npm:^25.2.3":
+  version: 25.2.3
+  resolution: "@jest/fake-timers@npm:25.2.3"
   dependencies:
-    "@jest/types": ^25.1.0
-    jest-message-util: ^25.1.0
-    jest-mock: ^25.1.0
-    jest-util: ^25.1.0
+    "@jest/types": ^25.2.3
+    jest-message-util: ^25.2.3
+    jest-mock: ^25.2.3
+    jest-util: ^25.2.3
     lolex: ^5.0.0
-  checksum: 2/cee4fcae7177d5fd477491ea343084ff3d1732c891cd36a6804a990b4d83d41a9a58ec46cf3f4f16ec1d8c168fcfeb38307100f1335f5d409e7f1d9cef71de5e
+  checksum: 2/6449b3af369130afb80c6484fb594eaf5cc6ab4eadcc8bb5f9d166ee4528a0144abc4baf6c0bf8992a4699e4083d00412750a5cc481159c92e5115171e583bdb
   languageName: node
   linkType: hard
 
-"@jest/reporters@npm:^25.1.0":
-  version: 25.1.0
-  resolution: "@jest/reporters@npm:25.1.0"
+"@jest/reporters@npm:^25.2.3":
+  version: 25.2.3
+  resolution: "@jest/reporters@npm:25.2.3"
   dependencies:
     "@bcoe/v8-coverage": ^0.2.3
-    "@jest/console": ^25.1.0
-    "@jest/environment": ^25.1.0
-    "@jest/test-result": ^25.1.0
-    "@jest/transform": ^25.1.0
-    "@jest/types": ^25.1.0
+    "@jest/console": ^25.2.3
+    "@jest/test-result": ^25.2.3
+    "@jest/transform": ^25.2.3
+    "@jest/types": ^25.2.3
     chalk: ^3.0.0
     collect-v8-coverage: ^1.0.0
     exit: ^0.1.2
@@ -1651,11 +1650,10 @@ __metadata:
     istanbul-lib-report: ^3.0.0
     istanbul-lib-source-maps: ^4.0.0
     istanbul-reports: ^3.0.0
-    jest-haste-map: ^25.1.0
-    jest-resolve: ^25.1.0
-    jest-runtime: ^25.1.0
-    jest-util: ^25.1.0
-    jest-worker: ^25.1.0
+    jest-haste-map: ^25.2.3
+    jest-resolve: ^25.2.3
+    jest-util: ^25.2.3
+    jest-worker: ^25.2.1
     node-notifier: ^6.0.0
     slash: ^3.0.0
     source-map: ^0.6.0
@@ -1665,67 +1663,67 @@ __metadata:
   dependenciesMeta:
     node-notifier:
       optional: true
-  checksum: 2/647e0eef603d009fdfa8a3d4a038d08c11b76aec0f56b5da79211775f548aaa2782768bb05b05dcfff9b38ba3af4fc602eb6b4df1c5ddc93970f675dfa52bfa3
+  checksum: 2/7c67ffc87a382246063eae79eace10b0e940d48e486933dc5d2fdf0e9eb533780668277c651dfd6af46a50de729014ca1b5a1b99cb9685f1cd1d2356d37ede12
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   resolution: "send@npm:0.17.1"
@@ -21139,7 +21188,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"util.promisify@npm:1.0.0, util.promisify@npm:^1.0.0, util.promisify@npm:~1.0.0":
+"util.promisify@npm:1.0.0, util.promisify@npm:~1.0.0":
   version: 1.0.0
   resolution: "util.promisify@npm:1.0.0"
   dependencies:
@@ -21764,7 +21813,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"webpack@npm:4.42.0, webpack@npm:^4.42.0, webpack@npm:^4.8.1":
+"webpack@npm:4.42.0, webpack@npm:^4.8.1":
   version: 4.42.0
   resolution: "webpack@npm:4.42.0"
   dependencies:
@@ -21956,7 +22005,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"which@npm:^2.0.1":
+"which@npm:^2.0.1, which@npm:^2.0.2":
   version: 2.0.2
   resolution: "which@npm:2.0.2"
   dependencies:
@@ -22338,7 +22387,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"yargs@npm:^15.0.0, yargs@npm:^15.3.1":
+"yargs@npm:^15.3.1":
   version: 15.3.1
   resolution: "yargs@npm:15.3.1"
   dependencies: