diff --git a/package.json b/package.json
index 2c0ca804aa..b0b3100ec2 100644
--- a/package.json
+++ b/package.json
@@ -33,10 +33,10 @@
     "afterSign": "electron-builder-notarize"
   },
   "resolutions": {
-    "@polkadot/api": "^2.1.2-20",
-    "@polkadot/api-contract": "^2.1.2-20",
+    "@polkadot/api": "^2.1.2-23",
+    "@polkadot/api-contract": "^2.1.2-23",
     "@polkadot/keyring": "^3.5.1",
-    "@polkadot/types": "^2.1.2-20",
+    "@polkadot/types": "^2.1.2-23",
     "@polkadot/util": "^3.5.1",
     "@polkadot/util-crypto": "^3.5.1",
     "@polkadot/wasm-crypto": "^1.4.1",
diff --git a/packages/page-contracts/package.json b/packages/page-contracts/package.json
index 34f5cd8eab..fe1f40dae4 100644
--- a/packages/page-contracts/package.json
+++ b/packages/page-contracts/package.json
@@ -12,6 +12,6 @@
   "license": "Apache-2.0",
   "dependencies": {
     "@babel/runtime": "^7.11.2",
-    "@polkadot/api-contract": "^2.1.2-20"
+    "@polkadot/api-contract": "^2.1.2-23"
   }
 }
diff --git a/packages/page-contracts/src/Codes/Upload.tsx b/packages/page-contracts/src/Codes/Upload.tsx
index 685bb0d4fa..ad8936256e 100644
--- a/packages/page-contracts/src/Codes/Upload.tsx
+++ b/packages/page-contracts/src/Codes/Upload.tsx
@@ -1,13 +1,13 @@
 // Copyright 2017-2020 @polkadot/app-contracts authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
-import { Hash } from '@polkadot/types/interfaces';
+import { SubmittableExtrinsic } from '@polkadot/api/types';
 
-import React, { useCallback, useState } from 'react';
-import { SubmittableResult } from '@polkadot/api';
+import React, { useCallback, useEffect, useMemo, useState } from 'react';
+import { CodePromise, CodeSubmittableResult } from '@polkadot/api-contract';
 import { InputAddress, InputFile, Modal, TxButton } from '@polkadot/react-components';
-import { useAccountId, useNonEmptyString } from '@polkadot/react-hooks';
-import { compactAddLength, isNull, isWasm } from '@polkadot/util';
+import { useAccountId, useApi, useNonEmptyString } from '@polkadot/react-hooks';
+import { isNull, isWasm } from '@polkadot/util';
 
 import { ABI, InputName } from '../shared';
 import store from '../store';
@@ -20,42 +20,46 @@ interface Props {
 
 function Upload ({ onClose }: Props): React.ReactElement {
   const { t } = useTranslation();
+  const { api } = useApi();
   const [accountId, setAccountId] = useAccountId();
+  const [uploadTx, setUploadTx] = useState<SubmittableExtrinsic<'promise'> | null>(null);
   const [[wasm, isWasmValid], setWasm] = useState<[Uint8Array | null, boolean]>([null, false]);
   const [name, isNameValid, setName] = useNonEmptyString();
-  const { abi, contractAbi, errorText, isAbiError, isAbiSupplied, isAbiValid, onChangeAbi, onRemoveAbi } = useAbi();
+  const { contractAbi, errorText, isAbiError, isAbiSupplied, isAbiValid, onChangeAbi, onRemoveAbi } = useAbi();
+
+  const code = useMemo(
+    () => isAbiValid && isWasmValid && wasm && contractAbi
+      ? new CodePromise(api, contractAbi, wasm)
+      : null,
+    [api, contractAbi, isAbiValid, isWasmValid, wasm]
+  );
+
+  useEffect((): void => {
+    setUploadTx(() => code ? code.createBlueprint() : null);
+  }, [code]);
 
   const _onAddWasm = useCallback(
     (wasm: Uint8Array, name: string): void => {
-      setWasm([compactAddLength(wasm), isWasm(wasm)]);
-      setName(name.replace('.wasm', ''));
+      setWasm([wasm, isWasm(wasm)]);
+      setName(name.replace('.wasm', '').replace('_', ' '));
     },
     [setName]
   );
 
   const _onSuccess = useCallback(
-    (result: SubmittableResult): void => {
-      const record = result.findRecord('contracts', 'CodeStored');
-
-      if (record) {
-        const codeHash = record.event.data[0];
-
-        if (!codeHash || !name) {
-          return;
-        }
-
-        store
-          .saveCode(codeHash as Hash, { abi, name, tags: [] })
-          .then()
-          .catch((error: any): void => {
-            console.error('Unable to save code', error);
-          });
-      }
+    (result: CodeSubmittableResult<'promise'>): void => {
+      result.blueprint && store
+        .saveCode(result.blueprint.codeHash, {
+          abi: JSON.stringify(result.blueprint.abi.json),
+          name: name || '<unknown>',
+          tags: []
+        })
+        .catch(console.error);
     },
-    [abi, name]
+    [name]
   );
 
-  const isSubmittable = !!accountId && (!isNull(name) && isNameValid) && isWasmValid && isAbiSupplied && isAbiValid;
+  const isSubmittable = !!accountId && (!isNull(name) && isNameValid) && isWasmValid && isAbiSupplied && isAbiValid && !!uploadTx;
 
   return (
     <Modal header={t('Upload WASM')}>
@@ -98,13 +102,12 @@ function Upload ({ onClose }: Props): React.ReactElement {
       <Modal.Actions onCancel={onClose}>
         <TxButton
           accountId={accountId}
+          extrinsic={uploadTx}
           icon='upload'
           isDisabled={!isSubmittable}
           label={t('Upload')}
           onClick={onClose}
           onSuccess={_onSuccess}
-          params={[wasm]}
-          tx='contracts.putCode'
         />
       </Modal.Actions>
     </Modal>
diff --git a/packages/page-contracts/src/Contracts/Call.tsx b/packages/page-contracts/src/Contracts/Call.tsx
index 40f49ab597..b24c50b734 100644
--- a/packages/page-contracts/src/Contracts/Call.tsx
+++ b/packages/page-contracts/src/Contracts/Call.tsx
@@ -8,7 +8,7 @@ import BN from 'bn.js';
 import React, { useCallback, useState, useEffect } from 'react';
 import styled from 'styled-components';
 import { Button, Dropdown, Expander, InputAddress, InputBalance, Modal, TxButton } from '@polkadot/react-components';
-import { PromiseContract as ApiContract } from '@polkadot/api-contract';
+import { ContractPromise as ApiContract } from '@polkadot/api-contract';
 import { useAccountId, useFormField } from '@polkadot/react-hooks';
 import { BN_ZERO } from '@polkadot/util';
 
diff --git a/packages/page-contracts/src/Contracts/Contract.tsx b/packages/page-contracts/src/Contracts/Contract.tsx
index a82fcee49d..de21ab888e 100644
--- a/packages/page-contracts/src/Contracts/Contract.tsx
+++ b/packages/page-contracts/src/Contracts/Contract.tsx
@@ -6,7 +6,7 @@ import { ContractInfo } from '@polkadot/types/interfaces';
 
 import React, { useCallback } from 'react';
 import keyring from '@polkadot/ui-keyring';
-import { PromiseContract } from '@polkadot/api-contract';
+import { ContractPromise } from '@polkadot/api-contract';
 import { AddressInfo, AddressMini, Button, Forget } from '@polkadot/react-components';
 import { useApi, useCall, useToggle } from '@polkadot/react-hooks';
 import { Option } from '@polkadot/types';
@@ -17,7 +17,7 @@ import { useTranslation } from '../translate';
 
 interface Props {
   className?: string;
-  contract: PromiseContract;
+  contract: ContractPromise;
   onCall: (index?: number) => void;
 }
 
diff --git a/packages/page-contracts/src/Contracts/index.tsx b/packages/page-contracts/src/Contracts/index.tsx
index db0fb91a5a..459cce1ad5 100644
--- a/packages/page-contracts/src/Contracts/index.tsx
+++ b/packages/page-contracts/src/Contracts/index.tsx
@@ -5,7 +5,7 @@ import { StringOrNull } from '@polkadot/react-components/types';
 
 import React, { useCallback, useMemo, useRef, useState } from 'react';
 import { ApiPromise } from '@polkadot/api';
-import { PromiseContract as ApiContract } from '@polkadot/api-contract';
+import { ContractPromise as ApiContract } from '@polkadot/api-contract';
 import { Table } from '@polkadot/react-components';
 import { useApi } from '@polkadot/react-hooks';
 
diff --git a/packages/page-contracts/src/Contracts/util.tsx b/packages/page-contracts/src/Contracts/util.tsx
index 3d3fb54a1d..3a3cbe9988 100644
--- a/packages/page-contracts/src/Contracts/util.tsx
+++ b/packages/page-contracts/src/Contracts/util.tsx
@@ -6,7 +6,7 @@ import { StringOrNull } from '@polkadot/react-components/types';
 
 import React from 'react';
 import { ApiPromise } from '@polkadot/api';
-import { PromiseContract as Contract } from '@polkadot/api-contract';
+import { ContractPromise as Contract } from '@polkadot/api-contract';
 import { getContractAbi } from '@polkadot/react-components/util';
 
 import MessageSignature from '../shared/MessageSignature';
diff --git a/packages/page-contracts/src/Deploy.tsx b/packages/page-contracts/src/Deploy.tsx
index 616dc16700..c2706ac784 100644
--- a/packages/page-contracts/src/Deploy.tsx
+++ b/packages/page-contracts/src/Deploy.tsx
@@ -3,14 +3,11 @@
 
 import { SubmittableExtrinsic } from '@polkadot/api/types';
 import { StringOrNull } from '@polkadot/react-components/types';
-import { AccountId } from '@polkadot/types/interfaces';
 import { CodeStored } from './types';
 
 import BN from 'bn.js';
 import React, { useCallback, useEffect, useMemo, useState } from 'react';
-import { useHistory } from 'react-router-dom';
-import { SubmittableResult } from '@polkadot/api';
-import { PromiseBlueprint } from '@polkadot/api-contract';
+import { BlueprintPromise, BlueprintSubmittableResult } from '@polkadot/api-contract';
 import { Dropdown, InputAddress, InputBalance, Modal, TxButton } from '@polkadot/react-components';
 import { useFormField, useNonEmptyString, useNonZeroBn, useApi } from '@polkadot/react-hooks';
 import keyring from '@polkadot/ui-keyring';
@@ -23,17 +20,15 @@ import useWeight from './useWeight';
 import { ENDOWMENT } from './constants';
 
 interface Props {
-  basePath: string;
   codeHash: string;
   constructorIndex: number;
   onClose: () => void;
   setConstructorIndex: React.Dispatch<number>;
 }
 
-function Deploy ({ basePath, codeHash, constructorIndex = 0, onClose, setConstructorIndex }: Props): React.ReactElement<Props> {
+function Deploy ({ codeHash, constructorIndex = 0, onClose, setConstructorIndex }: Props): React.ReactElement<Props> {
   const { t } = useTranslation();
   const { api } = useApi();
-  const history = useHistory();
   const weight = useWeight();
   const [initTx, setInitTx] = useState<SubmittableExtrinsic<'promise'> | null>(null);
   const [params, setParams] = useState<any[]>([]);
@@ -50,13 +45,13 @@ function Deploy ({ basePath, codeHash, constructorIndex = 0, onClose, setConstru
   );
 
   const [name, isNameValid, setName] = useNonEmptyString(code.json.name);
-  const { abi, contractAbi, errorText, isAbiError, isAbiSupplied, isAbiValid, onChangeAbi, onRemoveAbi } = useAbi([code.json.abi, code.contractAbi], codeHash, true);
+  const { contractAbi, errorText, isAbiError, isAbiSupplied, isAbiValid, onChangeAbi, onRemoveAbi } = useAbi([code.json.abi, code.contractAbi], codeHash, true);
 
   const blueprint = useMemo(
-    () => codeHash && contractAbi
-      ? new PromiseBlueprint(api, contractAbi, codeHash)
+    () => isAbiValid && codeHash && contractAbi
+      ? new BlueprintPromise(api, contractAbi, codeHash)
       : null,
-    [api, codeHash, contractAbi]
+    [api, codeHash, contractAbi, isAbiValid]
   );
 
   const constructOptions = useMemo(
@@ -79,7 +74,7 @@ function Deploy ({ basePath, codeHash, constructorIndex = 0, onClose, setConstru
     endowment && setInitTx((): SubmittableExtrinsic<'promise'> | null => {
       if (blueprint) {
         try {
-          return blueprint.instantiate(constructorIndex, endowment, weight.weight, ...params);
+          return blueprint.createContract(constructorIndex, endowment, weight.weight, ...params);
         } catch (error) {
           console.error(error);
 
@@ -92,30 +87,21 @@ function Deploy ({ basePath, codeHash, constructorIndex = 0, onClose, setConstru
   }, [blueprint, constructorIndex, endowment, params, weight]);
 
   const _onSuccess = useCallback(
-    (result: SubmittableResult): void => {
-      const section = api.tx.contracts ? 'contracts' : 'contract';
-      const records = result.filterRecords(section, 'Instantiated');
-
-      if (records.length) {
-        // find the last EventRecord (in the case of multiple contracts deployed - we should really be
-        // more clever here to find the exact contract deployed, this works for eg. Delegator)
-        const address = records[records.length - 1].event.data[1] as unknown as AccountId;
-
-        keyring.saveContract(address.toString(), {
+    (result: BlueprintSubmittableResult<'promise'>): void => {
+      if (result.contract) {
+        keyring.saveContract(result.contract.address.toString(), {
           contract: {
-            abi,
+            abi: JSON.stringify(result.contract.abi.json),
             genesisHash: api.genesisHash.toHex()
           },
           name,
           tags: []
         });
 
-        history.push(basePath);
-
         onClose && onClose();
       }
     },
-    [abi, api, basePath, history, name, onClose]
+    [api, name, onClose]
   );
 
   const isValid = isNameValid && isEndowmentValid && weight.isValid && isAccountIdValid;
diff --git a/packages/page-contracts/src/index.tsx b/packages/page-contracts/src/index.tsx
index 522110188c..4edbdd1d2d 100644
--- a/packages/page-contracts/src/index.tsx
+++ b/packages/page-contracts/src/index.tsx
@@ -111,7 +111,6 @@ function ContractsApp ({ basePath, className = '' }: Props): React.ReactElement<
       />
       {codeHash && isDeployOpen && (
         <Deploy
-          basePath={basePath}
           codeHash={codeHash}
           constructorIndex={constructorIndex}
           onClose={_onCloseDeploy}
diff --git a/packages/page-contracts/src/shared/ABI.tsx b/packages/page-contracts/src/shared/ABI.tsx
index afbcb4403b..a79dac1755 100644
--- a/packages/page-contracts/src/shared/ABI.tsx
+++ b/packages/page-contracts/src/shared/ABI.tsx
@@ -80,17 +80,7 @@ function ABI (props: Props): React.ReactElement<Props> {
               onChange={onChange}
               placeholder={
                 isSupplied && !isValid
-                  ? (
-                    <>
-                      {t<string>('invalid ABI file selected')}
-                      {!!errorText && (
-                        <>
-                          {' — '}
-                          {t<string>(errorText)}
-                        </>
-                      )}
-                    </>
-                  )
+                  ? <>{t<string>('invalid ABI file selected')}{!!errorText && ` — ${errorText}`}</>
                   : t<string>('click to select or drag and drop a JSON ABI file')
               }
             />
diff --git a/packages/page-contracts/src/shared/Messages.tsx b/packages/page-contracts/src/shared/Messages.tsx
index ebef36b7df..7a2fe79fe4 100644
--- a/packages/page-contracts/src/shared/Messages.tsx
+++ b/packages/page-contracts/src/shared/Messages.tsx
@@ -6,7 +6,7 @@ import { ContractInfo } from '@polkadot/types/interfaces';
 
 import React, { useCallback, useEffect, useState } from 'react';
 import styled from 'styled-components';
-import { Abi, PromiseContract } from '@polkadot/api-contract';
+import { Abi, ContractPromise } from '@polkadot/api-contract';
 import { Expander, IconLink } from '@polkadot/react-components';
 import { useApi, useCall } from '@polkadot/react-hooks';
 import { Option } from '@polkadot/types';
@@ -16,7 +16,7 @@ import { useTranslation } from '../translate';
 
 export interface Props {
   className?: string;
-  contract?: PromiseContract;
+  contract?: ContractPromise;
   contractAbi: Abi;
   isLabelled?: boolean;
   isRemovable?: boolean;
diff --git a/packages/page-contracts/src/store.ts b/packages/page-contracts/src/store.ts
index d09876d4d0..6dd5ee791b 100644
--- a/packages/page-contracts/src/store.ts
+++ b/packages/page-contracts/src/store.ts
@@ -69,13 +69,9 @@ class Store extends EventEmitter {
 
   private addCode (key: string, json: CodeJson): void {
     try {
-      const abi = json.abi
-        ? JSON.parse(json.abi) as Record<string, any>
-        : null;
-
       this.allCode[json.codeHash] = {
-        contractAbi: abi
-          ? new Abi(abi)
+        contractAbi: json.abi
+          ? new Abi(json.abi)
           : undefined,
         json
       };
diff --git a/packages/page-contracts/src/useAbi.ts b/packages/page-contracts/src/useAbi.ts
index f8fdddfaa5..e809f410d9 100644
--- a/packages/page-contracts/src/useAbi.ts
+++ b/packages/page-contracts/src/useAbi.ts
@@ -8,7 +8,6 @@ import { Abi } from '@polkadot/api-contract';
 import { u8aToString } from '@polkadot/util';
 
 import store from './store';
-import { useTranslation } from './translate';
 
 interface UseAbi {
   abi: string | null;
@@ -22,7 +21,6 @@ interface UseAbi {
 }
 
 export default function useAbi (initialValue: [string | null | undefined, Abi | null | undefined] = [null, null], codeHash: StringOrNull = null, isRequired = false): UseAbi {
-  const { t } = useTranslation();
   const [[abi, contractAbi, isAbiSupplied, isAbiValid], setAbi] = useState<[string | null | undefined, Abi | null | undefined, boolean, boolean]>([initialValue[0], initialValue[1], !!initialValue[1], !isRequired || !!initialValue[1]]);
   const [[isAbiError, errorText], setError] = useState<[boolean, string | null]>([false, null]);
 
@@ -38,13 +36,7 @@ export default function useAbi (initialValue: [string | null | undefined, Abi |
       const json = u8aToString(u8a);
 
       try {
-        const abi = JSON.parse(json) as Record<string, any>;
-
-        if (!abi.metadataVersion) {
-          throw new Error(t('You are using an ABI with an outdated format. Please generate a new one.'));
-        }
-
-        setAbi([json, new Abi(abi), true, true]);
+        setAbi([json, new Abi(json), true, true]);
 
         codeHash && store.saveCode(
           codeHash,
@@ -57,7 +49,7 @@ export default function useAbi (initialValue: [string | null | undefined, Abi |
         setError([true, error]);
       }
     },
-    [codeHash, t]
+    [codeHash]
   );
 
   const onRemoveAbi = useCallback(
diff --git a/packages/react-api/package.json b/packages/react-api/package.json
index 9b98ec94a4..fd909ce699 100644
--- a/packages/react-api/package.json
+++ b/packages/react-api/package.json
@@ -31,7 +31,7 @@
   "homepage": "https://github.com/polkadot-js/ui/tree/master/packages/ui-reactive#readme",
   "dependencies": {
     "@babel/runtime": "^7.11.2",
-    "@polkadot/api": "^2.1.2-20",
+    "@polkadot/api": "^2.1.2-23",
     "@polkadot/extension-dapp": "^0.35.0-beta.12",
     "rxjs-compat": "^6.6.3"
   }
diff --git a/yarn.lock b/yarn.lock
index 2a88403f27..8b42fb1a60 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2039,57 +2039,57 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@polkadot/api-contract@npm:^2.1.2-20":
-  version: 2.1.2-20
-  resolution: "@polkadot/api-contract@npm:2.1.2-20"
+"@polkadot/api-contract@npm:^2.1.2-23":
+  version: 2.1.2-23
+  resolution: "@polkadot/api-contract@npm:2.1.2-23"
   dependencies:
     "@babel/runtime": ^7.11.2
-    "@polkadot/api": 2.1.2-20
-    "@polkadot/rpc-core": 2.1.2-20
-    "@polkadot/types": 2.1.2-20
+    "@polkadot/api": 2.1.2-23
+    "@polkadot/rpc-core": 2.1.2-23
+    "@polkadot/types": 2.1.2-23
     "@polkadot/util": ^3.5.1
     bn.js: ^5.1.3
     rxjs: ^6.6.3
-  checksum: 138f3f2ec27b6772d87d988b2c69fcbc303c821f2c68d1e99af52afe6eb257a0d3395b3350c450a73f7abc8657cb79fe07f54ca073bf38c13d3dae14fb8b9910
+  checksum: c7580494c919dcc521c69f480d0e2994b7c07cb3b7bd2217abb13ccc643d5fd0865540bda2e7dcbe3e9f90355100ae29eac66c92b3a6d5e5ca1c406792003bd2
   languageName: node
   linkType: hard
 
-"@polkadot/api-derive@npm:2.1.2-20":
-  version: 2.1.2-20
-  resolution: "@polkadot/api-derive@npm:2.1.2-20"
+"@polkadot/api-derive@npm:2.1.2-23":
+  version: 2.1.2-23
+  resolution: "@polkadot/api-derive@npm:2.1.2-23"
   dependencies:
     "@babel/runtime": ^7.11.2
-    "@polkadot/api": 2.1.2-20
-    "@polkadot/rpc-core": 2.1.2-20
-    "@polkadot/rpc-provider": 2.1.2-20
-    "@polkadot/types": 2.1.2-20
+    "@polkadot/api": 2.1.2-23
+    "@polkadot/rpc-core": 2.1.2-23
+    "@polkadot/rpc-provider": 2.1.2-23
+    "@polkadot/types": 2.1.2-23
     "@polkadot/util": ^3.5.1
     "@polkadot/util-crypto": ^3.5.1
     bn.js: ^5.1.3
     memoizee: ^0.4.14
     rxjs: ^6.6.3
-  checksum: c3294b0cf54e499e260faaaf23ffea74b7188df80efc80b3f7ce8630b5afe55f2dfdb209b15a5e7edcba673e1a52837bfdc4f84e7f9b85d5d5fc6ca1560818a5
+  checksum: a8ab3ef976aec27ba7aac21b4ebbe95b282728da94cdaea9ea56e161cf6a1f53d5623fc1cc1e86978a869c80fbd492b727a8c32273f0a987f43699f05821e013
   languageName: node
   linkType: hard
 
-"@polkadot/api@npm:^2.1.2-20":
-  version: 2.1.2-20
-  resolution: "@polkadot/api@npm:2.1.2-20"
+"@polkadot/api@npm:^2.1.2-23":
+  version: 2.1.2-23
+  resolution: "@polkadot/api@npm:2.1.2-23"
   dependencies:
     "@babel/runtime": ^7.11.2
-    "@polkadot/api-derive": 2.1.2-20
+    "@polkadot/api-derive": 2.1.2-23
     "@polkadot/keyring": ^3.5.1
-    "@polkadot/metadata": 2.1.2-20
-    "@polkadot/rpc-core": 2.1.2-20
-    "@polkadot/rpc-provider": 2.1.2-20
-    "@polkadot/types": 2.1.2-20
-    "@polkadot/types-known": 2.1.2-20
+    "@polkadot/metadata": 2.1.2-23
+    "@polkadot/rpc-core": 2.1.2-23
+    "@polkadot/rpc-provider": 2.1.2-23
+    "@polkadot/types": 2.1.2-23
+    "@polkadot/types-known": 2.1.2-23
     "@polkadot/util": ^3.5.1
     "@polkadot/util-crypto": ^3.5.1
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