diff --git a/packages/app-explorer/package.json b/packages/app-explorer/package.json
index f21a878a0a..b37db181e9 100644
--- a/packages/app-explorer/package.json
+++ b/packages/app-explorer/package.json
@@ -12,8 +12,8 @@
   },
   "dependencies": {
     "@babel/runtime": "^7.0.0-beta.47",
-    "@polkadot/primitives-codec": "^0.16.12",
-    "@polkadot/primitives-json": "^0.16.12",
+    "@polkadot/primitives-codec": "^0.16.15",
+    "@polkadot/primitives-json": "^0.16.15",
     "@polkadot/ui-app": "^0.6.10",
     "@polkadot/util-crypto": "^0.22.2"
   }
diff --git a/packages/app-explorer/src/index.css b/packages/app-explorer/src/index.css
index e0156a8cb1..a9730c9535 100644
--- a/packages/app-explorer/src/index.css
+++ b/packages/app-explorer/src/index.css
@@ -10,6 +10,18 @@
   background: transparent !important;
 }
 
+.explorer--NodeInfo {
+  font-size: 0.75rem;
+  opacity: 0.5;
+  margin-bottom: 0.5rem;
+  text-align: left;
+}
+
+.explorer--NodeInfo div {
+  display: inline-block;
+  margin-right: 0.5rem;
+}
+
 .explorer--BestHash,
 .explorer--BestNumber {
   font-weight: 100;
diff --git a/packages/app-explorer/src/index.js b/packages/app-explorer/src/index.js
index 28961a456c..b3423c18f9 100644
--- a/packages/app-explorer/src/index.js
+++ b/packages/app-explorer/src/index.js
@@ -10,7 +10,10 @@ import './index.css';
 import React from 'react';
 
 import classes from '@polkadot/ui-app/util/classes';
+import Chain from '@polkadot/ui-react-rx/Chain';
 import BestNumber from '@polkadot/ui-react-rx/BestNumber';
+import NodeName from '@polkadot/ui-react-rx/NodeName';
+import NodeVersion from '@polkadot/ui-react-rx/NodeVersion';
 
 import BestHash from './BestHash';
 import BlockHeaders from './BlockHeaders';
@@ -24,6 +27,16 @@ function ExplorerApp ({ className, style, t }: Props): React$Node {
       className={classes('explorer--App', className)}
       style={style}
     >
+      <div className='explorer--NodeInfo'>
+        <Chain label={t('app.chain', {
+          defaultValue: 'chain: '
+        })} />
+        <NodeName label={t('app.name', {
+          defaultValue: 'client: '
+        })}
+        />
+        <NodeVersion label='v.' />
+      </div>
       <BestNumber
         className='explorer--BestNumber'
         label={t('app.bestNumber', {
diff --git a/packages/app-extrinsics/package.json b/packages/app-extrinsics/package.json
index 7bf5625cc7..860f0c18ac 100644
--- a/packages/app-extrinsics/package.json
+++ b/packages/app-extrinsics/package.json
@@ -12,7 +12,7 @@
   },
   "dependencies": {
     "@babel/runtime": "^7.0.0-beta.47",
-    "@polkadot/extrinsics-codec": "^0.16.12",
+    "@polkadot/extrinsics-codec": "^0.16.15",
     "@polkadot/ui-app": "^0.6.10",
     "@polkadot/ui-signer": "^0.6.10",
     "react-dropzone": "^4.2.9"
diff --git a/packages/app-extrinsics/src/Extrinsic.js b/packages/app-extrinsics/src/Extrinsic.js
index ac571a6f80..5ce116a7df 100644
--- a/packages/app-extrinsics/src/Extrinsic.js
+++ b/packages/app-extrinsics/src/Extrinsic.js
@@ -3,8 +3,10 @@
 // of the ISC license. See the LICENSE file for details.
 // @flow
 
+import type { EncodingVersions } from '@polkadot/extrinsics-codec/types';
 import type { Extrinsic$Method } from '@polkadot/extrinsics/types';
 import type { BareProps } from '@polkadot/ui-app/types';
+import type { ApiProps } from '@polkadot/ui-react-rx/types';
 import type { RawParam } from '@polkadot/ui-app/Params/types';
 import type { EncodedMessage } from '@polkadot/ui-signer/types';
 
@@ -15,10 +17,11 @@ import InputExtrinsic from '@polkadot/ui-app/InputExtrinsic';
 import Params from '@polkadot/ui-app/Params';
 import classes from '@polkadot/ui-app/util/classes';
 import isUndefined from '@polkadot/util/is/undefined';
+import withApi from '@polkadot/ui-react-rx/with/api';
 
 import paramComponents from './Params';
 
-type Props = BareProps & {
+type Props = BareProps & ApiProps & {
   defaultValue: Extrinsic$Method,
   isError?: boolean,
   isPrivate?: boolean,
@@ -29,10 +32,11 @@ type Props = BareProps & {
 
 type State = {
   extrinsic: Extrinsic$Method,
-  values: Array<RawParam>
+  values: Array<RawParam>,
+  apiSupport: EncodingVersions
 };
 
-export default class Extrinsic extends React.PureComponent<Props, State> {
+class Extrinsic extends React.PureComponent<Props, State> {
   state: State;
 
   constructor (props: Props) {
@@ -40,10 +44,22 @@ export default class Extrinsic extends React.PureComponent<Props, State> {
 
     this.state = {
       extrinsic: props.defaultValue,
-      values: []
+      values: [],
+      apiSupport: 'poc-1'
     };
   }
 
+  componentDidMount () {
+    // FIXME should be shared component, no unmount here
+    this.props.api.system.version().subscribe((nodeVersion?: string) => {
+      this.setState({
+        apiSupport: nodeVersion === undefined || nodeVersion === '0.1.0'
+          ? 'poc-1'
+          : 'latest'
+      });
+    });
+  }
+
   render (): React$Node {
     const { className, defaultValue, isError, isPrivate, labelMethod, labelSection, style } = this.props;
     const { extrinsic } = this.state;
@@ -73,7 +89,7 @@ export default class Extrinsic extends React.PureComponent<Props, State> {
   nextState (newState: $Shape<State>): void {
     this.setState(newState, () => {
       const { onChange } = this.props;
-      const { extrinsic, values } = this.state;
+      const { apiSupport, extrinsic, values } = this.state;
       const params = Object.values(extrinsic.params);
       const isValid = values.length === params.length &&
         params.reduce((isValid, param, index) =>
@@ -82,7 +98,7 @@ export default class Extrinsic extends React.PureComponent<Props, State> {
           !isUndefined(values[index].value) &&
           values[index].isValid, true);
       const value = isValid && extrinsic.params
-        ? encode(extrinsic, values.map((p) => p.value))
+        ? encode(extrinsic, values.map((p) => p.value), apiSupport)
         : new Uint8Array([]);
 
       onChange({
@@ -101,3 +117,5 @@ export default class Extrinsic extends React.PureComponent<Props, State> {
     this.nextState({ values });
   }
 }
+
+export default withApi(Extrinsic);
diff --git a/packages/ui-app/package.json b/packages/ui-app/package.json
index e41d280d3b..d2295b634c 100644
--- a/packages/ui-app/package.json
+++ b/packages/ui-app/package.json
@@ -12,11 +12,11 @@
   },
   "dependencies": {
     "@babel/runtime": "^7.0.0-beta.47",
-    "@polkadot/extrinsics-substrate": "^0.16.12",
-    "@polkadot/storage-substrate": "^0.16.12",
+    "@polkadot/extrinsics-substrate": "^0.16.15",
+    "@polkadot/storage-substrate": "^0.16.15",
     "@polkadot/ui-keyring": "^0.6.10",
-    "@polkadot/ui-react": "^0.13.13",
-    "@polkadot/ui-react-rx": "^0.13.13",
+    "@polkadot/ui-react": "^0.13.19",
+    "@polkadot/ui-react-rx": "^0.13.19",
     "i18next": "^11.1.1",
     "i18next-browser-languagedetector": "^2.2.0",
     "i18next-xhr-backend": "^1.5.1",
diff --git a/packages/ui-keyring/package.json b/packages/ui-keyring/package.json
index 19a09283d6..1797be65fb 100644
--- a/packages/ui-keyring/package.json
+++ b/packages/ui-keyring/package.json
@@ -12,7 +12,7 @@
   },
   "dependencies": {
     "@babel/runtime": "^7.0.0-beta.47",
-    "@polkadot/ui-react": "^0.13.13",
+    "@polkadot/ui-react": "^0.13.19",
     "@polkadot/util-keyring": "^0.22.2",
     "store": "^2.0.12"
   },
diff --git a/packages/ui-signer/package.json b/packages/ui-signer/package.json
index a3e01142bc..b00f984c30 100644
--- a/packages/ui-signer/package.json
+++ b/packages/ui-signer/package.json
@@ -12,7 +12,7 @@
   },
   "dependencies": {
     "@babel/runtime": "^7.0.0-beta.47",
-    "@polkadot/extrinsics": "^0.16.12",
+    "@polkadot/extrinsics": "^0.16.15",
     "@polkadot/ui-app": "^0.6.10",
     "@polkadot/ui-keyring": "^0.6.10"
   },
diff --git a/packages/ui-signer/src/Modal.js b/packages/ui-signer/src/Modal.js
index e4f7f2f84e..98a5e294db 100644
--- a/packages/ui-signer/src/Modal.js
+++ b/packages/ui-signer/src/Modal.js
@@ -3,6 +3,7 @@
 // of the ISC license. See the LICENSE file for details.
 // @flow
 
+import type { EncodingVersions } from '@polkadot/extrinsics-codec/types';
 import type { ApiProps } from '@polkadot/ui-react-rx/types';
 import type { I18nProps } from '@polkadot/ui-app/types';
 import type { QueueTx, QueueTx$MessageSetStatus } from './types';
@@ -32,6 +33,7 @@ type UnlockI18n = {
 }
 
 type State = {
+  apiSupport: EncodingVersions,
   currentItem?: QueueTx,
   password: string,
   unlockError: UnlockI18n | null
@@ -44,12 +46,13 @@ class Signer extends React.PureComponent<Props, State> {
     super(props);
 
     this.state = {
+      apiSupport: 'poc-1',
       password: '',
       unlockError: null
     };
   }
 
-  static getDerivedStateFromProps ({ queue }: Props, { currentItem, password, unlockError }: State): State {
+  static getDerivedStateFromProps ({ queue }: Props, { apiSupport, currentItem, password, unlockError }: State): State {
     const nextItem = queue.find(({ status }) =>
       status === 'queued'
     );
@@ -64,12 +67,24 @@ class Signer extends React.PureComponent<Props, State> {
       );
 
     return {
+      apiSupport,
       currentItem: nextItem,
       password: isSame ? password : '',
       unlockError: isSame ? unlockError : null
     };
   }
 
+  componentDidMount () {
+    // FIXME should be shared component, no unmount here
+    this.props.api.system.version().subscribe((nodeVersion?: string) => {
+      this.setState({
+        apiSupport: nodeVersion === undefined || nodeVersion === '0.1.0'
+          ? 'poc-1'
+          : 'latest'
+      });
+    });
+  }
+
   componentDidUpdate (prevProps: Props, prevState: State) {
     const { currentItem } = this.state;
 
@@ -226,14 +241,19 @@ class Signer extends React.PureComponent<Props, State> {
     }
 
     const { api, queueSetStatus } = this.props;
+    const { apiSupport } = this.state;
 
     queueSetStatus(id, 'sending');
 
     let data = values;
 
     if (rpc.isSigned === true && publicKey) {
-      // flowlint-next-line unclear-type:off
-      data = [signMessage(publicKey, nonce, ((data[0]: any): Uint8Array)).data];
+      data = [
+        signMessage(
+          // flowlint-next-line unclear-type:off
+          publicKey, nonce, ((data[0]: any): Uint8Array), apiSupport
+        ).data
+      ];
     }
 
     const { error, result, status } = await submitMessage(api, data, rpc);
diff --git a/packages/ui-signer/src/sign.js b/packages/ui-signer/src/sign.js
index 588c935f73..6daf0b33d6 100644
--- a/packages/ui-signer/src/sign.js
+++ b/packages/ui-signer/src/sign.js
@@ -4,6 +4,7 @@
 // @flow
 
 import type BN from 'bn.js';
+import type { EncodingVersions } from '@polkadot/extrinsics-codec/types';
 import type { Signed } from './types';
 
 import encodeCall from '@polkadot/extrinsics-codec/encode/call';
@@ -11,12 +12,14 @@ import keyring from '@polkadot/ui-keyring';
 import u8aConcat from '@polkadot/util/u8a/concat';
 import u8aToHex from '@polkadot/util/u8a/toHex';
 
-export default function signMessage (publicKey: Uint8Array, nonce: BN | number, value: Uint8Array): Signed {
-  const message = encodeCall(publicKey, nonce, value);
+export default function signMessage (publicKey: Uint8Array, nonce: BN | number, value: Uint8Array, apiSupport: EncodingVersions): Signed {
+  console.log('signMessage :   support ::', apiSupport);
+
+  const message = encodeCall(publicKey, nonce, value, apiSupport);
   const signature = keyring.getPair(publicKey).sign(message);
 
-  console.log(`  message :: ${u8aToHex(message)}`);
-  console.log(`signature :: ${u8aToHex(signature)}`);
+  console.log(`signMessage :   message :: ${u8aToHex(message)}`);
+  console.log(`signMessage : signature :: ${u8aToHex(signature)}`);
 
   return {
     data: u8aConcat(message, signature),
diff --git a/yarn.lock b/yarn.lock
index f67b19bc64..9410a11fd6 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -719,22 +719,22 @@
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/@nodelib/fs.stat/-/fs.stat-1.0.2.tgz#d056b68999769728a1cff8d643bc59eb6f0be436"
 
-"@polkadot/api-format@^0.12.12":
-  version "0.12.12"
-  resolved "https://registry.yarnpkg.com/@polkadot/api-format/-/api-format-0.12.12.tgz#46213ab7c6a1f67036bcd485f4d23e36fefe3f97"
+"@polkadot/api-format@^0.12.15":
+  version "0.12.15"
+  resolved "https://registry.yarnpkg.com/@polkadot/api-format/-/api-format-0.12.15.tgz#62341ea7086bd39f60fc6fff20767f86cc34e0e7"
   dependencies:
     "@babel/runtime" "^7.0.0-beta.47"
-    "@polkadot/jsonrpc" "^0.16.12"
-    "@polkadot/primitives-json" "^0.16.12"
+    "@polkadot/jsonrpc" "^0.16.15"
+    "@polkadot/primitives-json" "^0.16.15"
     "@polkadot/util" "^0.22.2"
     "@polkadot/util-keyring" "^0.22.2"
 
-"@polkadot/api-provider@^0.12.12":
-  version "0.12.12"
-  resolved "https://registry.yarnpkg.com/@polkadot/api-provider/-/api-provider-0.12.12.tgz#67c0e2c479fb6f8eb1a53034d2c8cf98a45b8fb8"
+"@polkadot/api-provider@^0.12.15":
+  version "0.12.15"
+  resolved "https://registry.yarnpkg.com/@polkadot/api-provider/-/api-provider-0.12.15.tgz#92205e42e2f7ae159fdf6a9fac666756289bf136"
   dependencies:
     "@babel/runtime" "^7.0.0-beta.47"
-    "@polkadot/storage-substrate" "^0.16.12"
+    "@polkadot/storage-substrate" "^0.16.15"
     "@polkadot/util" "^0.22.2"
     "@polkadot/util-crypto" "^0.22.2"
     "@polkadot/util-keyring" "^0.22.2"
@@ -742,24 +742,24 @@
     isomorphic-fetch "^2.2.1"
     websocket "^1.0.25"
 
-"@polkadot/api-rx@^0.12.12":
-  version "0.12.12"
-  resolved "https://registry.yarnpkg.com/@polkadot/api-rx/-/api-rx-0.12.12.tgz#9003a56efb8cc99b11fab948094370832c352948"
+"@polkadot/api-rx@^0.12.15":
+  version "0.12.15"
+  resolved "https://registry.yarnpkg.com/@polkadot/api-rx/-/api-rx-0.12.15.tgz#75fbb5b9b090d7f732ad3004101a897560128d5b"
   dependencies:
     "@babel/runtime" "^7.0.0-beta.47"
-    "@polkadot/api" "^0.12.12"
-    "@polkadot/api-provider" "^0.12.12"
+    "@polkadot/api" "^0.12.15"
+    "@polkadot/api-provider" "^0.12.15"
     rxjs "^5.5.10"
 
-"@polkadot/api@^0.12.12":
-  version "0.12.12"
-  resolved "https://registry.yarnpkg.com/@polkadot/api/-/api-0.12.12.tgz#f51a315322f6d25f931cb7becf7fb46eb717f557"
+"@polkadot/api@^0.12.15":
+  version "0.12.15"
+  resolved "https://registry.yarnpkg.com/@polkadot/api/-/api-0.12.15.tgz#ca6fb0c8b669cc1702b9a5935a56a575a85c4be5"
   dependencies:
     "@babel/runtime" "^7.0.0-beta.47"
-    "@polkadot/api-format" "^0.12.12"
-    "@polkadot/api-provider" "^0.12.12"
-    "@polkadot/jsonrpc" "^0.16.12"
-    "@polkadot/params" "^0.16.12"
+    "@polkadot/api-format" "^0.12.15"
+    "@polkadot/api-provider" "^0.12.15"
+    "@polkadot/jsonrpc" "^0.16.15"
+    "@polkadot/params" "^0.16.15"
     "@polkadot/util" "^0.22.2"
 
 "@polkadot/dev-react@^0.19.11":
@@ -817,136 +817,137 @@
     mkdirp "^0.5.1"
     rimraf "^2.6.2"
 
-"@polkadot/extrinsics-codec@^0.16.12":
-  version "0.16.12"
-  resolved "https://registry.yarnpkg.com/@polkadot/extrinsics-codec/-/extrinsics-codec-0.16.12.tgz#0e394354a92088f0a2c1dcb088d69b157c7a45fa"
+"@polkadot/extrinsics-codec@^0.16.15":
+  version "0.16.15"
+  resolved "https://registry.yarnpkg.com/@polkadot/extrinsics-codec/-/extrinsics-codec-0.16.15.tgz#92e752736af2c61ae24b371ebee6f44b5daa2db8"
   dependencies:
     "@babel/runtime" "^7.0.0-beta.47"
-    "@polkadot/extrinsics" "^0.16.12"
-    "@polkadot/params" "^0.16.12"
+    "@polkadot/extrinsics" "^0.16.15"
+    "@polkadot/params" "^0.16.15"
     "@polkadot/util" "^0.22.2"
     bn.js "^4.11.8"
 
-"@polkadot/extrinsics-substrate@^0.16.12":
-  version "0.16.12"
-  resolved "https://registry.yarnpkg.com/@polkadot/extrinsics-substrate/-/extrinsics-substrate-0.16.12.tgz#acb202bcf3915783568797d604e5372efe094db3"
+"@polkadot/extrinsics-substrate@^0.16.15":
+  version "0.16.15"
+  resolved "https://registry.yarnpkg.com/@polkadot/extrinsics-substrate/-/extrinsics-substrate-0.16.15.tgz#c8ad42f38b568629a3de9089413a8275ef06dc8d"
   dependencies:
     "@babel/runtime" "^7.0.0-beta.47"
-    "@polkadot/extrinsics" "^0.16.12"
+    "@polkadot/extrinsics" "^0.16.15"
 
-"@polkadot/extrinsics@^0.16.12":
-  version "0.16.12"
-  resolved "https://registry.yarnpkg.com/@polkadot/extrinsics/-/extrinsics-0.16.12.tgz#d7583bdf8b76afa9a58b8bc6274a1afcc8042511"
+"@polkadot/extrinsics@^0.16.15":
+  version "0.16.15"
+  resolved "https://registry.yarnpkg.com/@polkadot/extrinsics/-/extrinsics-0.16.15.tgz#103cd7beb4049fee07d86ac34f02e14360dc9b32"
   dependencies:
     "@babel/runtime" "^7.0.0-beta.47"
-    "@polkadot/params" "^0.16.12"
-    "@polkadot/primitives" "^0.16.12"
+    "@polkadot/params" "^0.16.15"
+    "@polkadot/primitives" "^0.16.15"
     "@polkadot/util" "^0.22.2"
 
-"@polkadot/jsonrpc@^0.16.12":
-  version "0.16.12"
-  resolved "https://registry.yarnpkg.com/@polkadot/jsonrpc/-/jsonrpc-0.16.12.tgz#0fa923ed8736d31f08419bff04bb5e6f52ce7eef"
+"@polkadot/jsonrpc@^0.16.15":
+  version "0.16.15"
+  resolved "https://registry.yarnpkg.com/@polkadot/jsonrpc/-/jsonrpc-0.16.15.tgz#aaa9bdff6af8fb32b49740843e203490a5285f15"
   dependencies:
-    "@polkadot/params" "^0.16.12"
+    "@polkadot/params" "^0.16.15"
     babel-runtime "^6.26.0"
 
-"@polkadot/params@^0.16.12":
-  version "0.16.12"
-  resolved "https://registry.yarnpkg.com/@polkadot/params/-/params-0.16.12.tgz#2e5512e3d890d9d9b5bfd6a44539f7ef32a369ae"
+"@polkadot/params@^0.16.15":
+  version "0.16.15"
+  resolved "https://registry.yarnpkg.com/@polkadot/params/-/params-0.16.15.tgz#31d419b6bdb815cdb87cd1a3bd251a670a5e02c7"
   dependencies:
     "@babel/runtime" "^7.0.0-beta.47"
-    "@polkadot/extrinsics" "^0.16.12"
-    "@polkadot/extrinsics-substrate" "^0.16.12"
-    "@polkadot/primitives" "^0.16.12"
+    "@polkadot/extrinsics" "^0.16.15"
+    "@polkadot/extrinsics-substrate" "^0.16.15"
+    "@polkadot/primitives" "^0.16.15"
     "@polkadot/util" "^0.22.2"
 
-"@polkadot/primitives-builder@^0.16.12":
-  version "0.16.12"
-  resolved "https://registry.yarnpkg.com/@polkadot/primitives-builder/-/primitives-builder-0.16.12.tgz#413d71443bff6fa611e7651390003bfbac728961"
+"@polkadot/primitives-builder@^0.16.15":
+  version "0.16.15"
+  resolved "https://registry.yarnpkg.com/@polkadot/primitives-builder/-/primitives-builder-0.16.15.tgz#89e986a6e7167247beea8dc2dcc8278b7cfd4404"
   dependencies:
     "@babel/runtime" "^7.0.0-beta.47"
-    "@polkadot/primitives" "^0.16.12"
-    "@polkadot/primitives-codec" "^0.16.12"
+    "@polkadot/primitives" "^0.16.15"
+    "@polkadot/primitives-codec" "^0.16.15"
     "@polkadot/util" "^0.22.2"
     "@polkadot/util-crypto" "^0.22.2"
     "@polkadot/util-triehash" "^0.22.2"
 
-"@polkadot/primitives-codec@^0.16.12":
-  version "0.16.12"
-  resolved "https://registry.yarnpkg.com/@polkadot/primitives-codec/-/primitives-codec-0.16.12.tgz#18bf1f2eb44689a38e9f7f91ed8f94a30c461a71"
+"@polkadot/primitives-codec@^0.16.15":
+  version "0.16.15"
+  resolved "https://registry.yarnpkg.com/@polkadot/primitives-codec/-/primitives-codec-0.16.15.tgz#ecbe4c9cfc77da49361920ded193c5c2ff2c7aa0"
   dependencies:
     "@babel/runtime" "^7.0.0-beta.47"
-    "@polkadot/primitives" "^0.16.12"
-    "@polkadot/primitives-builder" "^0.16.12"
-    "@polkadot/primitives-rlp" "^0.16.12"
+    "@polkadot/primitives" "^0.16.15"
+    "@polkadot/primitives-builder" "^0.16.15"
+    "@polkadot/primitives-rlp" "^0.16.15"
     "@polkadot/util" "^0.22.2"
     "@polkadot/util-keyring" "^0.22.2"
 
-"@polkadot/primitives-json@^0.16.12":
-  version "0.16.12"
-  resolved "https://registry.yarnpkg.com/@polkadot/primitives-json/-/primitives-json-0.16.12.tgz#59e971ffa3888bbbe9ec7c60180d2e6b91378355"
+"@polkadot/primitives-json@^0.16.15":
+  version "0.16.15"
+  resolved "https://registry.yarnpkg.com/@polkadot/primitives-json/-/primitives-json-0.16.15.tgz#decb1fa9a134dd92a792d16a970bc9c1e783b81b"
   dependencies:
     "@babel/runtime" "^7.0.0-beta.47"
-    "@polkadot/primitives" "^0.16.12"
-    "@polkadot/primitives-builder" "^0.16.12"
+    "@polkadot/primitives" "^0.16.15"
+    "@polkadot/primitives-builder" "^0.16.15"
     "@polkadot/util" "^0.22.2"
 
-"@polkadot/primitives-rlp@^0.16.12":
-  version "0.16.12"
-  resolved "https://registry.yarnpkg.com/@polkadot/primitives-rlp/-/primitives-rlp-0.16.12.tgz#5f1a23f748280970d5b9ac1950ec2d273c9b392b"
+"@polkadot/primitives-rlp@^0.16.15":
+  version "0.16.15"
+  resolved "https://registry.yarnpkg.com/@polkadot/primitives-rlp/-/primitives-rlp-0.16.15.tgz#863b78da6273887631193730fab96e5d81c11b33"
   dependencies:
     "@babel/runtime" "^7.0.0-beta.47"
-    "@polkadot/primitives" "^0.16.12"
-    "@polkadot/primitives-builder" "^0.16.12"
+    "@polkadot/primitives" "^0.16.15"
+    "@polkadot/primitives-builder" "^0.16.15"
     "@polkadot/util" "^0.22.2"
     "@polkadot/util-crypto" "^0.22.2"
 
-"@polkadot/primitives@^0.16.12":
-  version "0.16.12"
-  resolved "https://registry.yarnpkg.com/@polkadot/primitives/-/primitives-0.16.12.tgz#761caa7b741d73d65a8ed6311d59a1994f914316"
+"@polkadot/primitives@^0.16.15":
+  version "0.16.15"
+  resolved "https://registry.yarnpkg.com/@polkadot/primitives/-/primitives-0.16.15.tgz#b7f63adc89eb744d956ec93344dd74886cf9139e"
   dependencies:
     "@babel/runtime" "^7.0.0-beta.47"
     "@polkadot/util" "^0.22.2"
 
-"@polkadot/storage-substrate@^0.16.12":
-  version "0.16.12"
-  resolved "https://registry.yarnpkg.com/@polkadot/storage-substrate/-/storage-substrate-0.16.12.tgz#6d43c3877af7f4e18387252298fd447e98e1af15"
+"@polkadot/storage-substrate@^0.16.15":
+  version "0.16.15"
+  resolved "https://registry.yarnpkg.com/@polkadot/storage-substrate/-/storage-substrate-0.16.15.tgz#f0ab2dc9c85ebe9f72e223d15bb84ef3f42dc5ad"
   dependencies:
     "@babel/runtime" "^7.0.0-beta.47"
-    "@polkadot/storage" "^0.16.12"
+    "@polkadot/storage" "^0.16.15"
     "@polkadot/util" "^0.22.2"
 
-"@polkadot/storage@^0.16.12":
-  version "0.16.12"
-  resolved "https://registry.yarnpkg.com/@polkadot/storage/-/storage-0.16.12.tgz#38a2f439e970a7d156bd441fedbc41cdc7e136fb"
+"@polkadot/storage@^0.16.15":
+  version "0.16.15"
+  resolved "https://registry.yarnpkg.com/@polkadot/storage/-/storage-0.16.15.tgz#e1cb8cf618ab75eb6483a236a52da14a46e15781"
   dependencies:
     "@babel/runtime" "^7.0.0-beta.47"
-    "@polkadot/params" "^0.16.12"
-    "@polkadot/primitives" "^0.16.12"
+    "@polkadot/params" "^0.16.15"
+    "@polkadot/primitives" "^0.16.15"
     "@polkadot/util" "^0.22.2"
     "@polkadot/util-keyring" "^0.22.2"
 
-"@polkadot/ui-identicon@^0.13.13":
-  version "0.13.13"
-  resolved "https://registry.yarnpkg.com/@polkadot/ui-identicon/-/ui-identicon-0.13.13.tgz#cf17c9c632beef53e5deb9efc2a9df6edaacbffe"
+"@polkadot/ui-identicon@^0.13.19":
+  version "0.13.19"
+  resolved "https://registry.yarnpkg.com/@polkadot/ui-identicon/-/ui-identicon-0.13.19.tgz#b788b7c5a4c5d1b0a0178223629439c085f5e167"
   dependencies:
     "@babel/runtime" "^7.0.0-beta.47"
     color "^3.0.0"
 
-"@polkadot/ui-react-rx@^0.13.13":
-  version "0.13.13"
-  resolved "https://registry.yarnpkg.com/@polkadot/ui-react-rx/-/ui-react-rx-0.13.13.tgz#33a060f348ed0a07dfe28b3ddf08c6dcd0bf56ca"
+"@polkadot/ui-react-rx@^0.13.19":
+  version "0.13.19"
+  resolved "https://registry.yarnpkg.com/@polkadot/ui-react-rx/-/ui-react-rx-0.13.19.tgz#30e398c1bbed3bfe906a53082ebcac447ab8ff93"
   dependencies:
     "@babel/runtime" "^7.0.0-beta.47"
-    "@polkadot/api-rx" "^0.12.12"
-    "@polkadot/storage-substrate" "^0.16.12"
+    "@polkadot/api-rx" "^0.12.15"
+    "@polkadot/extrinsics-codec" "^0.16.15"
+    "@polkadot/storage-substrate" "^0.16.15"
 
-"@polkadot/ui-react@^0.13.13":
-  version "0.13.13"
-  resolved "https://registry.yarnpkg.com/@polkadot/ui-react/-/ui-react-0.13.13.tgz#233da9b2753c32c447fc944361201065c004ccc8"
+"@polkadot/ui-react@^0.13.19":
+  version "0.13.19"
+  resolved "https://registry.yarnpkg.com/@polkadot/ui-react/-/ui-react-0.13.19.tgz#8085524bfafbd04bea3c33c19b3ee87f8c83a398"
   dependencies:
     "@babel/runtime" "^7.0.0-beta.47"
-    "@polkadot/ui-identicon" "^0.13.13"
+    "@polkadot/ui-identicon" "^0.13.19"
 
 "@polkadot/util-crypto@^0.22.2":
   version "0.22.2"