diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9e55f662..0630907d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # CHANGELOG
 
+## master
+
+Changes:
+
+- Internal RxJs usage has been bumped to the 7.2 version
+
+
 ## 0.83.1, Jul 5, 2021
 
 Contributed:
diff --git a/package.json b/package.json
index bb28f972..51f8206a 100644
--- a/package.json
+++ b/package.json
@@ -29,8 +29,8 @@
   "devDependencies": {
     "@babel/core": "^7.14.6",
     "@babel/runtime": "^7.14.6",
-    "@polkadot/dev": "^0.62.44",
-    "@polkadot/ts": "^0.4.2",
+    "@polkadot/dev": "^0.62.52",
+    "@polkadot/ts": "^0.4.3",
     "@types/jest": "^26.0.23",
     "babel-plugin-transform-vue-template": "^0.4.2",
     "empty": "^0.10.1",
diff --git a/packages/exampleReactNative/package.json b/packages/exampleReactNative/package.json
index edeff41c..1af7f6af 100644
--- a/packages/exampleReactNative/package.json
+++ b/packages/exampleReactNative/package.json
@@ -12,12 +12,12 @@
     "test": "jest"
   },
   "dependencies": {
-    "@polkadot/keyring": "^6.11.1",
+    "@polkadot/keyring": "^6.11.2-6",
     "@polkadot/reactnative-identicon": "0.83.1",
     "@polkadot/ui-keyring": "0.83.1",
     "@polkadot/ui-settings": "0.83.1",
-    "@polkadot/util": "^6.11.1",
-    "@polkadot/util-crypto": "^6.11.1",
+    "@polkadot/util": "^6.11.2-6",
+    "@polkadot/util-crypto": "^6.11.2-6",
     "@react-native-community/async-storage": "^1.12.1",
     "fast-text-encoding": "^1.0.3",
     "get-yarn-workspaces": "^1.0.2",
diff --git a/packages/react-identicon/package.json b/packages/react-identicon/package.json
index 32e0327f..925c3f56 100644
--- a/packages/react-identicon/package.json
+++ b/packages/react-identicon/package.json
@@ -13,11 +13,11 @@
   "license": "Apache-2.0",
   "dependencies": {
     "@babel/runtime": "^7.14.6",
-    "@polkadot/keyring": "^6.11.1",
+    "@polkadot/keyring": "^6.11.2-6",
     "@polkadot/ui-settings": "0.83.1",
     "@polkadot/ui-shared": "0.83.1",
-    "@polkadot/util": "^6.11.1",
-    "@polkadot/util-crypto": "^6.11.1",
+    "@polkadot/util": "^6.11.2-6",
+    "@polkadot/util-crypto": "^6.11.2-6",
     "color": "^3.1.3",
     "ethereum-blockies-base64": "^1.0.2",
     "jdenticon": "3.1.0",
diff --git a/packages/react-qr/package.json b/packages/react-qr/package.json
index 95113cb3..4235869e 100644
--- a/packages/react-qr/package.json
+++ b/packages/react-qr/package.json
@@ -10,8 +10,8 @@
   "license": "Apache-2.0",
   "dependencies": {
     "@babel/runtime": "^7.14.6",
-    "@polkadot/util": "^6.11.1",
-    "@polkadot/util-crypto": "^6.11.1",
+    "@polkadot/util": "^6.11.2-6",
+    "@polkadot/util-crypto": "^6.11.2-6",
     "qrcode-generator": "^1.4.4",
     "react-qr-reader": "^2.2.1",
     "styled-components": "^5.3.0"
diff --git a/packages/reactnative-identicon/package.json b/packages/reactnative-identicon/package.json
index 0d56fb24..43b14600 100644
--- a/packages/reactnative-identicon/package.json
+++ b/packages/reactnative-identicon/package.json
@@ -14,8 +14,8 @@
   "dependencies": {
     "@babel/runtime": "^7.14.6",
     "@polkadot/ui-shared": "0.83.1",
-    "@polkadot/util": "^6.11.1",
-    "@polkadot/util-crypto": "^6.11.1",
+    "@polkadot/util": "^6.11.2-6",
+    "@polkadot/util-crypto": "^6.11.2-6",
     "react-native-svg": "^12.1.1"
   },
   "peerDependencies": {
diff --git a/packages/ui-keyring/README.md b/packages/ui-keyring/README.md
index cc9340b4..2aec1e03 100644
--- a/packages/ui-keyring/README.md
+++ b/packages/ui-keyring/README.md
@@ -40,7 +40,7 @@ import accountObservable from '@polkadot/ui-keyring/observable/accounts';
 import { SingleAddress, SubjectInfo } from '@polkadot/ui-keyring/observable/types';
 import React from 'react';
 import { Subscribe } from 'react-with-observable';
-import { map } from 'rxjs/operators';
+import { map } from 'rxjs';
 
 class MyReactComponent extends React.PureComponent {
   render () {
diff --git a/packages/ui-keyring/package.json b/packages/ui-keyring/package.json
index 6b521934..31d6b383 100644
--- a/packages/ui-keyring/package.json
+++ b/packages/ui-keyring/package.json
@@ -14,12 +14,12 @@
   "license": "Apache-2.0",
   "dependencies": {
     "@babel/runtime": "^7.14.6",
-    "@polkadot/hw-ledger": "^6.11.1",
-    "@polkadot/keyring": "^6.11.1",
+    "@polkadot/hw-ledger": "^6.11.2-6",
+    "@polkadot/keyring": "^6.11.2-6",
     "@polkadot/ui-settings": "0.83.1",
-    "@polkadot/util": "^6.11.1",
-    "@polkadot/x-rxjs": "^6.11.1",
+    "@polkadot/util": "^6.11.2-6",
     "mkdirp": "^1.0.4",
+    "rxjs": "^7.2.0",
     "store": "^2.0.12"
   },
   "devDependencies": {
diff --git a/packages/ui-keyring/src/observable/env.ts b/packages/ui-keyring/src/observable/env.ts
index 81a68187..d0e887e4 100644
--- a/packages/ui-keyring/src/observable/env.ts
+++ b/packages/ui-keyring/src/observable/env.ts
@@ -1,7 +1,7 @@
 // Copyright 2017-2021 @polkadot/ui-keyring authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
-import { BehaviorSubject } from '@polkadot/x-rxjs';
+import { BehaviorSubject } from 'rxjs';
 
 const subject = new BehaviorSubject(false);
 
diff --git a/packages/ui-keyring/src/observable/genericSubject.ts b/packages/ui-keyring/src/observable/genericSubject.ts
index fd671588..d30a0b28 100644
--- a/packages/ui-keyring/src/observable/genericSubject.ts
+++ b/packages/ui-keyring/src/observable/genericSubject.ts
@@ -5,7 +5,7 @@ import type { KeypairType } from '@polkadot/util-crypto/types';
 import type { KeyringJson, KeyringStore } from '../types';
 import type { AddressSubject, SingleAddress, SubjectInfo } from './types';
 
-import { BehaviorSubject } from '@polkadot/x-rxjs';
+import { BehaviorSubject } from 'rxjs';
 
 import { createOptionItem } from '../options/item';
 import { env } from './env';
diff --git a/packages/ui-keyring/src/observable/index.ts b/packages/ui-keyring/src/observable/index.ts
index 79f25bf8..f48f941a 100644
--- a/packages/ui-keyring/src/observable/index.ts
+++ b/packages/ui-keyring/src/observable/index.ts
@@ -3,8 +3,7 @@
 
 import type { SubjectInfo } from './types';
 
-import { combineLatest } from '@polkadot/x-rxjs';
-import { map } from '@polkadot/x-rxjs/operators';
+import { combineLatest, map } from 'rxjs';
 
 import { accounts } from './accounts';
 import { addresses } from './addresses';
@@ -16,11 +15,11 @@ interface Result {
   contracts: SubjectInfo;
 }
 
-export const obervableAll = combineLatest(
+export const obervableAll = combineLatest([
   accounts.subject,
   addresses.subject,
   contracts.subject
-).pipe(
+]).pipe(
   map(([accounts, addresses, contracts]): Result => ({
     accounts,
     addresses,
diff --git a/packages/ui-keyring/src/observable/types.ts b/packages/ui-keyring/src/observable/types.ts
index bd794223..201fec98 100644
--- a/packages/ui-keyring/src/observable/types.ts
+++ b/packages/ui-keyring/src/observable/types.ts
@@ -1,8 +1,8 @@
 // Copyright 2017-2021 @polkadot/ui-keyring authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
+import type { BehaviorSubject } from 'rxjs';
 import type { KeypairType } from '@polkadot/util-crypto/types';
-import type { BehaviorSubject } from '@polkadot/x-rxjs';
 import type { KeyringSectionOption } from '../options/types';
 import type { KeyringJson, KeyringStore } from '../types';
 
diff --git a/packages/ui-keyring/src/options/index.ts b/packages/ui-keyring/src/options/index.ts
index 32cdf496..3aa06b62 100644
--- a/packages/ui-keyring/src/options/index.ts
+++ b/packages/ui-keyring/src/options/index.ts
@@ -5,8 +5,9 @@ import type { SingleAddress } from '../observable/types';
 import type { KeyringStruct } from '../types';
 import type { KeyringOptionInstance, KeyringOptions, KeyringSectionOption, KeyringSectionOptions } from './types';
 
+import { BehaviorSubject } from 'rxjs';
+
 import { assert } from '@polkadot/util';
-import { BehaviorSubject } from '@polkadot/x-rxjs';
 
 import { obervableAll } from '../observable';
 
diff --git a/packages/ui-settings/package.json b/packages/ui-settings/package.json
index 92a74b16..f4798db2 100644
--- a/packages/ui-settings/package.json
+++ b/packages/ui-settings/package.json
@@ -10,8 +10,8 @@
   "license": "Apache-2.0",
   "dependencies": {
     "@babel/runtime": "^7.14.6",
-    "@polkadot/networks": "^6.11.1",
-    "@polkadot/util": "^6.11.1",
+    "@polkadot/networks": "^6.11.2-6",
+    "@polkadot/util": "^6.11.2-6",
     "eventemitter3": "^4.0.7",
     "store": "^2.0.12"
   },
diff --git a/packages/ui-shared/package.json b/packages/ui-shared/package.json
index 95e6ec7e..2c76300d 100644
--- a/packages/ui-shared/package.json
+++ b/packages/ui-shared/package.json
@@ -17,8 +17,8 @@
     "@polkadot/util-crypto": "*"
   },
   "devDependencies": {
-    "@polkadot/util": "^6.11.1",
-    "@polkadot/util-crypto": "^6.11.1",
+    "@polkadot/util": "^6.11.2-6",
+    "@polkadot/util-crypto": "^6.11.2-6",
     "@types/color": "^3.0.1",
     "@types/xmlserializer": "^0.6.2"
   }
diff --git a/packages/vue-identicon/package.json b/packages/vue-identicon/package.json
index ea06d304..4151da56 100644
--- a/packages/vue-identicon/package.json
+++ b/packages/vue-identicon/package.json
@@ -14,8 +14,8 @@
   "dependencies": {
     "@babel/runtime": "^7.14.6",
     "@polkadot/ui-shared": "0.83.1",
-    "@polkadot/util": "^6.11.1",
-    "@polkadot/util-crypto": "^6.11.1",
+    "@polkadot/util": "^6.11.2-6",
+    "@polkadot/util-crypto": "^6.11.2-6",
     "jdenticon": "3.1.0"
   },
   "peerDependencies": {
diff --git a/yarn.lock b/yarn.lock
index a06a285c..117cfb4a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1632,6 +1632,24 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@humanwhocodes/config-array@npm:^0.5.0":
+  version: 0.5.0
+  resolution: "@humanwhocodes/config-array@npm:0.5.0"
+  dependencies:
+    "@humanwhocodes/object-schema": ^1.2.0
+    debug: ^4.1.1
+    minimatch: ^3.0.4
+  checksum: 44ee6a9f05d93dd9d5935a006b17572328ba9caff8002442f601736cbda79c580cc0f5a49ce9eb88fbacc5c3a6b62098357c2e95326cd17bb9f1a6c61d6e95e7
+  languageName: node
+  linkType: hard
+
+"@humanwhocodes/object-schema@npm:^1.2.0":
+  version: 1.2.0
+  resolution: "@humanwhocodes/object-schema@npm:1.2.0"
+  checksum: 40b75480376de8104d65f7c44a7dd76d30fb57823ca8ba3a3239b2b568323be894d93440578a72fd8e5e2cc3df3577ce0d2f0fe308b990dd51cf35392bf3c9a2
+  languageName: node
+  linkType: hard
+
 "@istanbuljs/load-nyc-config@npm:^1.0.0":
   version: 1.1.0
   resolution: "@istanbuljs/load-nyc-config@npm:1.1.0"
@@ -2144,9 +2162,9 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@polkadot/dev@npm:^0.62.44":
-  version: 0.62.44
-  resolution: "@polkadot/dev@npm:0.62.44"
+"@polkadot/dev@npm:^0.62.52":
+  version: 0.62.52
+  resolution: "@polkadot/dev@npm:0.62.52"
   dependencies:
     "@babel/cli": ^7.14.5
     "@babel/core": ^7.14.6
@@ -2167,6 +2185,10 @@ __metadata:
     "@babel/preset-typescript": ^7.14.5
     "@babel/register": ^7.14.5
     "@babel/runtime": ^7.14.6
+    "@rollup/plugin-alias": ^3.1.2
+    "@rollup/plugin-commonjs": ^19.0.0
+    "@rollup/plugin-json": ^4.1.0
+    "@rollup/plugin-node-resolve": ^13.0.0
     "@rushstack/eslint-patch": ^1.0.6
     "@typescript-eslint/eslint-plugin": 4.28.1
     "@typescript-eslint/parser": 4.28.1
@@ -2178,7 +2200,7 @@ __metadata:
     browserslist: ^4.16.6
     chalk: ^4.1.1
     coveralls: ^3.1.1
-    eslint: ^7.29.0
+    eslint: ^7.30.0
     eslint-config-standard: ^16.0.3
     eslint-import-resolver-node: ^0.3.4
     eslint-plugin-header: ^3.1.1
@@ -2204,6 +2226,8 @@ __metadata:
     mkdirp: ^1.0.4
     prettier: ^2.3.2
     rimraf: ^3.0.2
+    rollup: ^2.52.7
+    rollup-plugin-polyfill-node: ^0.6.2
     typescript: ^4.3.5
     yargs: ^17.0.1
   bin:
@@ -2224,9 +2248,10 @@ __metadata:
     polkadot-exec-ghpages: scripts/polkadot-exec-ghpages.cjs
     polkadot-exec-ghrelease: scripts/polkadot-exec-ghrelease.cjs
     polkadot-exec-prettier: scripts/polkadot-exec-prettier.cjs
+    polkadot-exec-rollup: scripts/polkadot-exec-rollup.cjs
     polkadot-exec-tsc: scripts/polkadot-exec-tsc.cjs
     polkadot-exec-webpack: scripts/polkadot-exec-webpack.cjs
-  checksum: c93bb8f8309360fd7d1ccf1e19f77a6908fdb7ffc3e404717a0616489a93c15bc22561a8c71a5f05d967842747fdac8307060400415b5914e9974ae740264cb3
+  checksum: fedcfce10ccba899553e28d5cef603a3c187e56c4b661095f803b8e535fbc16cd45cd0f1e9c62f99c631861499ffc8aeb07045bd213ca8ca35dda2db1f83b105
   languageName: node
   linkType: hard
 
@@ -2246,9 +2271,9 @@ __metadata:
   languageName: unknown
   linkType: soft
 
-"@polkadot/hw-ledger-transports@npm:6.11.1":
-  version: 6.11.1
-  resolution: "@polkadot/hw-ledger-transports@npm:6.11.1"
+"@polkadot/hw-ledger-transports@npm:6.11.2-6":
+  version: 6.11.2-6
+  resolution: "@polkadot/hw-ledger-transports@npm:6.11.2-6"
   dependencies:
     "@babel/runtime": ^7.14.6
     "@ledgerhq/hw-transport": ^6.0.2
@@ -2258,42 +2283,42 @@ __metadata:
   dependenciesMeta:
     "@ledgerhq/hw-transport-node-hid-singleton":
       optional: true
-  checksum: 3ffb03c9a3f10b86ec02de17fc8c1d29def7391158728db753f0d8f3e3d3359f20b4cd697fcfa08cf7a0a916c44df2663146432e588fde4fd69b7f203fc92840
+  checksum: 57069c38df5da8c77e9f5868d18b905f396851396c978f8a4a44fbcc5ea3a48bd2459d12e7e947ba5f76b0245f81131fcac6a7b2f87b49c223b63f81bbe3110c
   languageName: node
   linkType: hard
 
-"@polkadot/hw-ledger@npm:^6.11.1":
-  version: 6.11.1
-  resolution: "@polkadot/hw-ledger@npm:6.11.1"
+"@polkadot/hw-ledger@npm:^6.11.2-6":
+  version: 6.11.2-6
+  resolution: "@polkadot/hw-ledger@npm:6.11.2-6"
   dependencies:
     "@babel/runtime": ^7.14.6
-    "@polkadot/hw-ledger-transports": 6.11.1
-    "@polkadot/util": ^6.11.1
+    "@polkadot/hw-ledger-transports": 6.11.2-6
+    "@polkadot/util": ^6.11.2-6
     "@zondax/ledger-substrate": ^0.16.2
-  checksum: a1bb9da94d6059a431f9f715795e2ae7aa27778c10b588e289dd132f1b16022c2fa6b4fcbd981424c942a33d0f98eef95c341b41447d06c7d14314097167d8d0
+  checksum: eaa92bd25a968de7b3416fca67ed66e740f78c0b0b706968c89d79ac807e8727e6e4f63888fb2fe4231bd07ffc337b5d928f26386ee89c991ea4ca55b0f3c13d
   languageName: node
   linkType: hard
 
-"@polkadot/keyring@npm:^6.11.1":
-  version: 6.11.1
-  resolution: "@polkadot/keyring@npm:6.11.1"
+"@polkadot/keyring@npm:^6.11.2-6":
+  version: 6.11.2-6
+  resolution: "@polkadot/keyring@npm:6.11.2-6"
   dependencies:
     "@babel/runtime": ^7.14.6
-    "@polkadot/util": 6.11.1
-    "@polkadot/util-crypto": 6.11.1
+    "@polkadot/util": 6.11.2-6
+    "@polkadot/util-crypto": 6.11.2-6
   peerDependencies:
-    "@polkadot/util": 6.11.1
-    "@polkadot/util-crypto": 6.11.1
-  checksum: 16c0352697380f60ef4bcd72949dbf8d63057ad0c9f24a5de24b788d40d16f0fb00b7fe9b455addcdb113480a499af4b322fded6b4db1be185321650110a31f2
+    "@polkadot/util": 6.11.2-6
+    "@polkadot/util-crypto": 6.11.2-6
+  checksum: f50f1f349219b56a833c34d099338d4fe43c80e790075df800cea447b980f9d95fde1f2279d8ed496bed0faaa428c6b320c7b253905ea9ec88f69426fdc19f5c
   languageName: node
   linkType: hard
 
-"@polkadot/networks@npm:6.11.1, @polkadot/networks@npm:^6.11.1":
-  version: 6.11.1
-  resolution: "@polkadot/networks@npm:6.11.1"
+"@polkadot/networks@npm:6.11.2-6, @polkadot/networks@npm:^6.11.2-6":
+  version: 6.11.2-6
+  resolution: "@polkadot/networks@npm:6.11.2-6"
   dependencies:
     "@babel/runtime": ^7.14.6
-  checksum: 33ec4d0b8dc97a79ba0ec244fcecf20b0b72a2d6c61e8099da6da2ee7e6ff8ea336791b45191f10dd07ffdae7fde46e0292e77a0514c671bf28618e7a5e0fd5e
+  checksum: 6f245a08d4b9bf2df12659aec703fba70605c4357d0c464f38bb64c994f4af23f77ec817306c19196fb59010e89964523edded1f9f09f6bd209d4497e1dadcb0
   languageName: node
   linkType: hard
 
@@ -2302,11 +2327,11 @@ __metadata:
   resolution: "@polkadot/react-identicon@workspace:packages/react-identicon"
   dependencies:
     "@babel/runtime": ^7.14.6
-    "@polkadot/keyring": ^6.11.1
+    "@polkadot/keyring": ^6.11.2-6
     "@polkadot/ui-settings": 0.83.1
     "@polkadot/ui-shared": 0.83.1
-    "@polkadot/util": ^6.11.1
-    "@polkadot/util-crypto": ^6.11.1
+    "@polkadot/util": ^6.11.2-6
+    "@polkadot/util-crypto": ^6.11.2-6
     "@types/react-copy-to-clipboard": ^5.0.0
     "@types/react-dom": ^17.0.8
     "@types/styled-components": ^5.1.11
@@ -2332,8 +2357,8 @@ __metadata:
   resolution: "@polkadot/react-qr@workspace:packages/react-qr"
   dependencies:
     "@babel/runtime": ^7.14.6
-    "@polkadot/util": ^6.11.1
-    "@polkadot/util-crypto": ^6.11.1
+    "@polkadot/util": ^6.11.2-6
+    "@polkadot/util-crypto": ^6.11.2-6
     "@types/react-qr-reader": ^2.1.3
     "@types/styled-components": ^5.1.11
     qrcode-generator: ^1.4.4
@@ -2354,8 +2379,8 @@ __metadata:
   dependencies:
     "@babel/runtime": ^7.14.6
     "@polkadot/ui-shared": 0.83.1
-    "@polkadot/util": ^6.11.1
-    "@polkadot/util-crypto": ^6.11.1
+    "@polkadot/util": ^6.11.2-6
+    "@polkadot/util-crypto": ^6.11.2-6
     "@types/react-native": ^0.64.10
     react-native-svg: ^12.1.1
   peerDependencies:
@@ -2366,12 +2391,12 @@ __metadata:
   languageName: unknown
   linkType: soft
 
-"@polkadot/ts@npm:^0.4.2":
-  version: 0.4.2
-  resolution: "@polkadot/ts@npm:0.4.2"
+"@polkadot/ts@npm:^0.4.3":
+  version: 0.4.3
+  resolution: "@polkadot/ts@npm:0.4.3"
   dependencies:
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   version: 1.1.3
   resolution: "is-regex@npm:1.1.3"
@@ -10818,6 +10975,15 @@ fsevents@~2.1.2:
   languageName: node
   linkType: hard
 
+"magic-string@npm:^0.25.5, magic-string@npm:^0.25.7":
+  version: 0.25.7
+  resolution: "magic-string@npm:0.25.7"
+  dependencies:
+    sourcemap-codec: ^1.4.4
+  checksum: 727a1fb70f9610304fe384f1df0251eb7d1d9dd779c07ef1225690361b71b216f26f5d934bfb11c919b5b0e7ba50f6240c823a6f2e44cfd33d4a07d7747ca829
+  languageName: node
+  linkType: hard
+
 "make-dir@npm:^2.0.0, make-dir@npm:^2.1.0":
   version: 2.1.0
   resolution: "make-dir@npm:2.1.0"
@@ -12529,7 +12695,7 @@ fsevents@~2.1.2:
   languageName: node
   linkType: hard
 
-"picomatch@npm:^2.0.4, picomatch@npm:^2.2.1, picomatch@npm:^2.2.3":
+"picomatch@npm:^2.0.4, picomatch@npm:^2.2.1, picomatch@npm:^2.2.2, picomatch@npm:^2.2.3":
   version: 2.3.0
   resolution: "picomatch@npm:2.3.0"
   checksum: 16818720ea7c5872b6af110760dee856c8e4cd79aed1c7a006d076b1cc09eff3ae41ca5019966694c33fbd2e1cc6ea617ab10e4adac6df06556168f13be3fca2
@@ -13761,7 +13927,7 @@ fsevents@~2.1.2:
   languageName: node
   linkType: hard
 
-"resolve@^1.1.6, resolve@^1.10.0, resolve@^1.10.1, resolve@^1.13.1, resolve@^1.14.2, resolve@^1.19.0, resolve@^1.20.0, resolve@^1.9.0":
+"resolve@^1.1.6, resolve@^1.10.0, resolve@^1.10.1, resolve@^1.13.1, resolve@^1.14.2, resolve@^1.17.0, resolve@^1.19.0, resolve@^1.20.0, resolve@^1.9.0":
   version: 1.20.0
   resolution: "resolve@npm:1.20.0"
   dependencies:
@@ -13781,7 +13947,7 @@ resolve@^2.0.0-next.3:
   languageName: node
   linkType: hard
 
-"resolve@patch:resolve@^1.1.6#~builtin<compat/resolve>, resolve@patch:resolve@^1.10.0#~builtin<compat/resolve>, resolve@patch:resolve@^1.10.1#~builtin<compat/resolve>, resolve@patch:resolve@^1.13.1#~builtin<compat/resolve>, resolve@patch:resolve@^1.14.2#~builtin<compat/resolve>, resolve@patch:resolve@^1.19.0#~builtin<compat/resolve>, resolve@patch:resolve@^1.20.0#~builtin<compat/resolve>, resolve@patch:resolve@^1.9.0#~builtin<compat/resolve>":
+"resolve@patch:resolve@^1.1.6#~builtin<compat/resolve>, resolve@patch:resolve@^1.10.0#~builtin<compat/resolve>, resolve@patch:resolve@^1.10.1#~builtin<compat/resolve>, resolve@patch:resolve@^1.13.1#~builtin<compat/resolve>, resolve@patch:resolve@^1.14.2#~builtin<compat/resolve>, resolve@patch:resolve@^1.17.0#~builtin<compat/resolve>, resolve@patch:resolve@^1.19.0#~builtin<compat/resolve>, resolve@patch:resolve@^1.20.0#~builtin<compat/resolve>, resolve@patch:resolve@^1.9.0#~builtin<compat/resolve>":
   version: 1.20.0
   resolution: "resolve@patch:resolve@npm%3A1.20.0#~builtin<compat/resolve>::version=1.20.0&hash=00b1ff"
   dependencies:
@@ -13896,14 +14062,37 @@ resolve@^2.0.0-next.3:
   languageName: node
   linkType: hard
 
+"rollup-plugin-polyfill-node@npm:^0.6.2":
+  version: 0.6.2
+  resolution: "rollup-plugin-polyfill-node@npm:0.6.2"
+  dependencies:
+    "@rollup/plugin-inject": ^4.0.0
+  checksum: ab54c237be140b814ac178bafe4f6e9518e893d52f8ed8399ade979f335e0d41d6aebf23b16e39aa24ecc6e7146e476903518c234f038d8e07920ed9e2c6dcb7
+  languageName: node
+  linkType: hard
+
+"rollup@npm:^2.52.7":
+  version: 2.52.7
+  resolution: "rollup@npm:2.52.7"
+  dependencies:
+    fsevents: ~2.3.2
+  dependenciesMeta:
+    fsevents:
+      optional: true
+  bin:
+    rollup: dist/bin/rollup
+  checksum: 92629c518c234f5f02249ed225fdb8c0bc25039ee91e3713107bf3b859344b81d986cbad71d793b6a973d852a495c2e5352c9d628eae992818036c0b45ea843c
+  languageName: node
+  linkType: hard
+
 "root-workspace-0b6124@workspace:.":
   version: 0.0.0-use.local
   resolution: "root-workspace-0b6124@workspace:."
   dependencies:
     "@babel/core": ^7.14.6
     "@babel/runtime": ^7.14.6
-    "@polkadot/dev": ^0.62.44
-    "@polkadot/ts": ^0.4.2
+    "@polkadot/dev": ^0.62.52
+    "@polkadot/ts": ^0.4.3
     "@types/jest": ^26.0.23
     babel-plugin-transform-vue-template: ^0.4.2
     empty: ^0.10.1
@@ -13957,7 +14146,7 @@ resolve@^2.0.0-next.3:
   languageName: node
   linkType: hard
 
-"rxjs@npm:6, rxjs@npm:^6.6.6, rxjs@npm:^6.6.7":
+"rxjs@npm:6, rxjs@npm:^6.6.6":
   version: 6.6.7
   resolution: "rxjs@npm:6.6.7"
   dependencies:
@@ -13966,6 +14155,15 @@ resolve@^2.0.0-next.3:
   languageName: node
   linkType: hard
 
+"rxjs@npm:^7.2.0":
+  version: 7.2.0
+  resolution: "rxjs@npm:7.2.0"
+  dependencies:
+    tslib: ~2.1.0
+  checksum: 92a3511035b3d51e97018247218183e5ef88d167ef271c1222be1b2d98b4a5daa5c3827e2b536c3f11f91ad435907820e7a91446d92f222430fd00e0b9f7dbba
+  languageName: node
+  linkType: hard
+
 "safe-buffer@npm:5.1.2, safe-buffer@npm:~5.1.0, safe-buffer@npm:~5.1.1":
   version: 5.1.2
   resolution: "safe-buffer@npm:5.1.2"
@@ -14541,6 +14739,13 @@ resolve@^2.0.0-next.3:
   languageName: node
   linkType: hard
 
+"sourcemap-codec@npm:^1.4.4":
+  version: 1.4.8
+  resolution: "sourcemap-codec@npm:1.4.8"
+  checksum: b57981c05611afef31605732b598ccf65124a9fcb03b833532659ac4d29ac0f7bfacbc0d6c5a28a03e84c7510e7e556d758d0bb57786e214660016fb94279316
+  languageName: node
+  linkType: hard
+
 "spdx-correct@npm:^3.0.0":
   version: 3.1.1
   resolution: "spdx-correct@npm:3.1.1"
@@ -15405,7 +15610,7 @@ resolve@^2.0.0-next.3:
   languageName: node
   linkType: hard
 
-"tslib@npm:^2.0.1":
+"tslib@npm:^2.0.1, tslib@npm:~2.1.0":
   version: 2.1.0
   resolution: "tslib@npm:2.1.0"
   checksum: aa189c8179de0427b0906da30926fd53c59d96ec239dff87d6e6bc831f608df0cbd6f77c61dabc074408bd0aa0b9ae4ec35cb2c15f729e32f37274db5730cb78