diff --git a/01-remarks-ui/package-lock.json b/01-remarks-ui/package-lock.json
index 574c77d..1e32356 100644
--- a/01-remarks-ui/package-lock.json
+++ b/01-remarks-ui/package-lock.json
@@ -999,18 +999,18 @@
       }
     },
     "@polkadot/extension-dapp": {
-      "version": "0.11.1",
-      "resolved": "https://registry.npm.taobao.org/@polkadot/extension-dapp/download/@polkadot/extension-dapp-0.11.1.tgz",
-      "integrity": "sha1-I1fnqYXxeasb9APvmWvZhFKr5Oo=",
+      "version": "0.11.0-beta.4",
+      "resolved": "https://registry.npmjs.org/@polkadot/extension-dapp/-/extension-dapp-0.11.0-beta.4.tgz",
+      "integrity": "sha512-9zJiFmuW9APO+jee9tTBBzIzTzsCiCS6CuZ+FxwDqnkZtMIqG857Wp+BkCj6qSxPGyXKbsC46nT0KhUdxXUxXA==",
       "requires": {
         "@babel/runtime": "^7.6.0",
-        "@polkadot/extension-inject": "^0.11.1"
+        "@polkadot/extension-inject": "^0.11.0-beta.4"
       }
     },
     "@polkadot/extension-inject": {
       "version": "0.11.1",
-      "resolved": "https://registry.npm.taobao.org/@polkadot/extension-inject/download/@polkadot/extension-inject-0.11.1.tgz",
-      "integrity": "sha1-qJIH1wUYVRWZEBvCsVDlq7E1+KI=",
+      "resolved": "https://registry.npmjs.org/@polkadot/extension-inject/-/extension-inject-0.11.1.tgz",
+      "integrity": "sha512-sbMvQOglfOtf9e7LZcVxurBQhA5HFi+bvQiXveTI02+PtssK5JMeHSPCxjGxWMtzNzG9lCEoGT9g6zqrGpnFvQ==",
       "requires": {
         "@babel/runtime": "^7.6.0"
       }
@@ -1726,7 +1726,7 @@
     },
     "bn.js": {
       "version": "4.11.8",
-      "resolved": "http://registry.npm.taobao.org/bn.js/download/bn.js-4.11.8.tgz",
+      "resolved": "https://registry.npm.taobao.org/bn.js/download/bn.js-4.11.8.tgz",
       "integrity": "sha1-LN4J617jQfSEdGuwMJsyU7GxRC8="
     },
     "brace-expansion": {
@@ -1845,14 +1845,36 @@
       }
     },
     "browserslist": {
-      "version": "4.9.1",
-      "resolved": "https://registry.npm.taobao.org/browserslist/download/browserslist-4.9.1.tgz",
-      "integrity": "sha1-Af+5yjGhrvdngSj8aiJTMWqnKHw=",
+      "version": "4.16.6",
+      "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.16.6.tgz",
+      "integrity": "sha512-Wspk/PqO+4W9qp5iUTJsa1B/QrYn1keNCcEP5OvP7WBwT4KaDly0uONYmC6Xa3Z5IqnUgS0KcgLYu1l74x0ZXQ==",
       "dev": true,
       "requires": {
-        "caniuse-lite": "^1.0.30001030",
-        "electron-to-chromium": "^1.3.363",
-        "node-releases": "^1.1.50"
+        "caniuse-lite": "^1.0.30001219",
+        "colorette": "^1.2.2",
+        "electron-to-chromium": "^1.3.723",
+        "escalade": "^3.1.1",
+        "node-releases": "^1.1.71"
+      },
+      "dependencies": {
+        "caniuse-lite": {
+          "version": "1.0.30001230",
+          "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001230.tgz",
+          "integrity": "sha512-5yBd5nWCBS+jWKTcHOzXwo5xzcj4ePE/yjtkZyUV1BTUmrBaA9MRGC+e7mxnqXSA90CmCA8L3eKLaSUkt099IQ==",
+          "dev": true
+        },
+        "electron-to-chromium": {
+          "version": "1.3.739",
+          "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.739.tgz",
+          "integrity": "sha512-+LPJVRsN7hGZ9EIUUiWCpO7l4E3qBYHNadazlucBfsXBbccDFNKUBAgzE68FnkWGJPwD/AfKhSzL+G+Iqb8A4A==",
+          "dev": true
+        },
+        "node-releases": {
+          "version": "1.1.72",
+          "resolved": "https://registry.npmjs.org/node-releases/-/node-releases-1.1.72.tgz",
+          "integrity": "sha512-LLUo+PpH3dU6XizX3iVoubUNheF/owjXCZZ5yACDxNnPtgFuludV1ZL3ayK1kVep42Rmm0+R9/Y60NQbZ2bifw==",
+          "dev": true
+        }
       }
     },
     "bs58": {
@@ -1937,12 +1959,6 @@
       "resolved": "http://registry.npm.taobao.org/camelcase/download/camelcase-5.3.1.tgz?cache=0&other_urls=http%3A%2F%2Fregistry.npm.taobao.org%2Fcamelcase%2Fdownload%2Fcamelcase-5.3.1.tgz",
       "integrity": "sha1-48mzFWnhBoEd8kL3FXJaH0xJQyA="
     },
-    "caniuse-lite": {
-      "version": "1.0.30001033",
-      "resolved": "https://registry.npm.taobao.org/caniuse-lite/download/caniuse-lite-1.0.30001033.tgz",
-      "integrity": "sha1-YMMo+1aGDeYPmiy0GcMfuAWHy6A=",
-      "dev": true
-    },
     "chalk": {
       "version": "2.4.2",
       "resolved": "https://registry.npm.taobao.org/chalk/download/chalk-2.4.2.tgz",
@@ -2057,6 +2073,12 @@
       "integrity": "sha1-p9BVi9icQveV3UIyj3QIMcpTvCU=",
       "dev": true
     },
+    "colorette": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/colorette/-/colorette-1.2.2.tgz",
+      "integrity": "sha512-MKGMzyfeuutC/ZJ1cba9NqcNpfeqMUcYmyF1ZFY6/Cn7CNSAKx6a+s48sqLqyAiZuaP2TcqMhoo+dlwFnVxT9w==",
+      "dev": true
+    },
     "commander": {
       "version": "2.20.3",
       "resolved": "https://registry.npm.taobao.org/commander/download/commander-2.20.3.tgz?cache=0&sync_timestamp=1583213791670&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fcommander%2Fdownload%2Fcommander-2.20.3.tgz",
@@ -2253,7 +2275,7 @@
     },
     "debug": {
       "version": "2.6.9",
-      "resolved": "http://registry.npm.taobao.org/debug/download/debug-2.6.9.tgz",
+      "resolved": "https://registry.npm.taobao.org/debug/download/debug-2.6.9.tgz",
       "integrity": "sha1-XRKFFd8TT/Mn6QpMk/Tgd6U2NB8=",
       "requires": {
         "ms": "2.0.0"
@@ -2366,12 +2388,6 @@
         "stream-shift": "^1.0.0"
       }
     },
-    "electron-to-chromium": {
-      "version": "1.3.375",
-      "resolved": "https://registry.npm.taobao.org/electron-to-chromium/download/electron-to-chromium-1.3.375.tgz?cache=0&sync_timestamp=1583899406994&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Felectron-to-chromium%2Fdownload%2Felectron-to-chromium-1.3.375.tgz",
-      "integrity": "sha1-4pDVnTFgJOVJkFeUTBDQXFGLeiQ=",
-      "dev": true
-    },
     "elliptic": {
       "version": "6.5.2",
       "resolved": "https://registry.npm.taobao.org/elliptic/download/elliptic-6.5.2.tgz",
@@ -2482,6 +2498,12 @@
         "es6-symbol": "^3.1.1"
       }
     },
+    "escalade": {
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/escalade/-/escalade-3.1.1.tgz",
+      "integrity": "sha512-k0er2gUkLf8O0zKJiAhmkTnJlTvINGv7ygDNPbeIsX/TJjGJZHuh9B2UxbsaEkmlEo9MfhrSzmhIlhRlI2GXnw==",
+      "dev": true
+    },
     "escape-string-regexp": {
       "version": "1.0.5",
       "resolved": "https://registry.npm.taobao.org/escape-string-regexp/download/escape-string-regexp-1.0.5.tgz",
@@ -3785,7 +3807,7 @@
     },
     "is-glob": {
       "version": "4.0.1",
-      "resolved": "http://registry.npm.taobao.org/is-glob/download/is-glob-4.0.1.tgz",
+      "resolved": "https://registry.npm.taobao.org/is-glob/download/is-glob-4.0.1.tgz",
       "integrity": "sha1-dWfb6fL14kZ7x3q4PEopSCQHpdw=",
       "dev": true,
       "requires": {
@@ -3906,7 +3928,7 @@
     },
     "json5": {
       "version": "1.0.1",
-      "resolved": "http://registry.npm.taobao.org/json5/download/json5-1.0.1.tgz",
+      "resolved": "https://registry.npm.taobao.org/json5/download/json5-1.0.1.tgz",
       "integrity": "sha1-d5+wAYYE+oVOrL9iUhgNg1Q+Pb4=",
       "dev": true,
       "requires": {
@@ -4330,23 +4352,6 @@
         }
       }
     },
-    "node-releases": {
-      "version": "1.1.51",
-      "resolved": "https://registry.npm.taobao.org/node-releases/download/node-releases-1.1.51.tgz",
-      "integrity": "sha1-cNDgVCITQ9KWYAa/vU2YYizAC9A=",
-      "dev": true,
-      "requires": {
-        "semver": "^6.3.0"
-      },
-      "dependencies": {
-        "semver": {
-          "version": "6.3.0",
-          "resolved": "https://registry.npm.taobao.org/semver/download/semver-6.3.0.tgz",
-          "integrity": "sha1-7gpkyK9ejO6mdoexM3YeG+y9HT0=",
-          "dev": true
-        }
-      }
-    },
     "normalize-path": {
       "version": "3.0.0",
       "resolved": "https://registry.npm.taobao.org/normalize-path/download/normalize-path-3.0.0.tgz",
@@ -4660,7 +4665,7 @@
     },
     "pump": {
       "version": "3.0.0",
-      "resolved": "http://registry.npm.taobao.org/pump/download/pump-3.0.0.tgz",
+      "resolved": "https://registry.npm.taobao.org/pump/download/pump-3.0.0.tgz",
       "integrity": "sha1-tKIRaBW94vTh6mAjVOjHVWUQemQ=",
       "dev": true,
       "requires": {
diff --git a/01-remarks-ui/yarn.lock b/01-remarks-ui/yarn.lock
index 1acd8c2..8852fde 100644
--- a/01-remarks-ui/yarn.lock
+++ b/01-remarks-ui/yarn.lock
@@ -720,7 +720,14 @@
     "@babel/types" "^7.4.4"
     esutils "^2.0.2"
 
-"@babel/runtime@^7.6.0", "@babel/runtime@^7.8.4", "@babel/runtime@^7.8.7", "@babel/runtime@^7.9.2":
+"@babel/runtime@^7.10.4":
+  version "7.14.0"
+  resolved "https://registry.yarnpkg.com/@babel/runtime/-/runtime-7.14.0.tgz#46794bc20b612c5f75e62dd071e24dfd95f1cbe6"
+  integrity sha512-JELkvo/DlpNdJ7dlyw/eY7E0suy5i5GQH+Vlxaq1nsNJ+H7f4Vtv3jMeCEgRhZZQFXTjldYfQgv2qmM6M1v5wA==
+  dependencies:
+    regenerator-runtime "^0.13.4"
+
+"@babel/runtime@^7.6.0", "@babel/runtime@^7.8.4":
   version "7.9.2"
   resolved "https://registry.npm.taobao.org/@babel/runtime/download/@babel/runtime-7.9.2.tgz?cache=0&sync_timestamp=1584800310568&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2F%40babel%2Fruntime%2Fdownload%2F%40babel%2Fruntime-7.9.2.tgz#d90df0583a3a252f09aaa619665367bae518db06"
   integrity sha1-2Q3wWDo6JS8JqqYZZlNnuuUY2wY=
@@ -760,146 +767,156 @@
     lodash "^4.17.13"
     to-fast-properties "^2.0.0"
 
-"@polkadot/api-derive@1.8.1":
-  version "1.8.1"
-  resolved "https://registry.npm.taobao.org/@polkadot/api-derive/download/@polkadot/api-derive-1.8.1.tgz#0253e23c922a3a94c19de64f6c64904e3cc11648"
-  integrity sha1-AlPiPJIqOpTBneZPbGSQTjzBFkg=
-  dependencies:
-    "@babel/runtime" "^7.9.2"
-    "@polkadot/api" "1.8.1"
-    "@polkadot/rpc-core" "1.8.1"
-    "@polkadot/rpc-provider" "1.8.1"
-    "@polkadot/types" "1.8.1"
-    "@polkadot/util" "^2.6.2"
-    "@polkadot/util-crypto" "^2.6.2"
+"@polkadot/api-derive@1.6.0-beta.24":
+  version "1.6.0-beta.24"
+  resolved "https://registry.yarnpkg.com/@polkadot/api-derive/-/api-derive-1.6.0-beta.24.tgz#07fc5405b7c7745ae507a3ab5dfd3629f40409a3"
+  integrity sha512-uZcAay9N4fDKPY1XYGwW3i50Gv95LjU1k8c3lskQ4c8nkLZJq4v1KTSxW0E4I5sObxsC70jzqgNSN1O9P9Xi7w==
+  dependencies:
+    "@babel/runtime" "^7.8.4"
+    "@polkadot/api" "1.6.0-beta.24"
+    "@polkadot/rpc-core" "1.6.0-beta.24"
+    "@polkadot/rpc-provider" "1.6.0-beta.24"
+    "@polkadot/types" "1.6.0-beta.24"
+    "@polkadot/util" "^2.6.1"
+    "@polkadot/util-crypto" "^2.6.1"
     bn.js "^5.1.1"
     memoizee "^0.4.14"
     rxjs "^6.5.4"
 
-"@polkadot/api@1.8.1", "@polkadot/api@^1.8.1":
-  version "1.8.1"
-  resolved "https://registry.npm.taobao.org/@polkadot/api/download/@polkadot/api-1.8.1.tgz#a8341ddcacbe60c1236e46bdb0246c971f7f4485"
-  integrity sha1-qDQd3Ky+YMEjbka9sCRslx9/RIU=
-  dependencies:
-    "@babel/runtime" "^7.9.2"
-    "@polkadot/api-derive" "1.8.1"
-    "@polkadot/keyring" "^2.6.2"
-    "@polkadot/metadata" "1.8.1"
-    "@polkadot/rpc-core" "1.8.1"
-    "@polkadot/rpc-provider" "1.8.1"
-    "@polkadot/types" "1.8.1"
-    "@polkadot/util" "^2.6.2"
-    "@polkadot/util-crypto" "^2.6.2"
+"@polkadot/api@1.6.0-beta.24":
+  version "1.6.0-beta.24"
+  resolved "https://registry.yarnpkg.com/@polkadot/api/-/api-1.6.0-beta.24.tgz#9b19a334f66a977694a5fcac9a9940bc2ab747c2"
+  integrity sha512-0ANLRJBMHq1+G68i8B9vFr9hWYxGFE5CLZXN0EHn/cY+ZV8TAm1JupWrhJAsonzEIxA6EbpR2WdTO4Dk2b1P7w==
+  dependencies:
+    "@babel/runtime" "^7.8.4"
+    "@polkadot/api-derive" "1.6.0-beta.24"
+    "@polkadot/keyring" "^2.6.1"
+    "@polkadot/metadata" "1.6.0-beta.24"
+    "@polkadot/rpc-core" "1.6.0-beta.24"
+    "@polkadot/rpc-provider" "1.6.0-beta.24"
+    "@polkadot/types" "1.6.0-beta.24"
+    "@polkadot/util" "^2.6.1"
+    "@polkadot/util-crypto" "^2.6.1"
     bn.js "^5.1.1"
     eventemitter3 "^4.0.0"
     rxjs "^6.5.4"
 
-"@polkadot/extension-dapp@^0.11.0-beta.4":
-  version "0.11.1"
-  resolved "https://registry.npm.taobao.org/@polkadot/extension-dapp/download/@polkadot/extension-dapp-0.11.1.tgz#2357e7a985f179ab1bf403ef996bd98452abe4ea"
-  integrity sha1-I1fnqYXxeasb9APvmWvZhFKr5Oo=
+"@polkadot/extension-dapp@0.11.0-beta.4":
+  version "0.11.0-beta.4"
+  resolved "https://registry.yarnpkg.com/@polkadot/extension-dapp/-/extension-dapp-0.11.0-beta.4.tgz#80fc30194c6ad150a991842c1fa8723ef9453563"
+  integrity sha512-9zJiFmuW9APO+jee9tTBBzIzTzsCiCS6CuZ+FxwDqnkZtMIqG857Wp+BkCj6qSxPGyXKbsC46nT0KhUdxXUxXA==
   dependencies:
     "@babel/runtime" "^7.6.0"
-    "@polkadot/extension-inject" "^0.11.1"
+    "@polkadot/extension-inject" "^0.11.0-beta.4"
 
-"@polkadot/extension-inject@^0.11.1":
+"@polkadot/extension-inject@^0.11.0-beta.4":
   version "0.11.1"
-  resolved "https://registry.npm.taobao.org/@polkadot/extension-inject/download/@polkadot/extension-inject-0.11.1.tgz#a89207d70518551599101bc2b150e5abb135f8a2"
-  integrity sha1-qJIH1wUYVRWZEBvCsVDlq7E1+KI=
+  resolved "https://registry.yarnpkg.com/@polkadot/extension-inject/-/extension-inject-0.11.1.tgz#a89207d70518551599101bc2b150e5abb135f8a2"
+  integrity sha512-sbMvQOglfOtf9e7LZcVxurBQhA5HFi+bvQiXveTI02+PtssK5JMeHSPCxjGxWMtzNzG9lCEoGT9g6zqrGpnFvQ==
   dependencies:
     "@babel/runtime" "^7.6.0"
 
-"@polkadot/keyring@^2.6.2":
-  version "2.6.2"
-  resolved "https://registry.npm.taobao.org/@polkadot/keyring/download/@polkadot/keyring-2.6.2.tgz#a0fc5b12e6b2bba738384fbc1cd93a0c61f30bac"
-  integrity sha1-oPxbEuayu6c4OE+8HNk6DGHzC6w=
+"@polkadot/jsonrpc@1.6.0-beta.24":
+  version "1.6.0-beta.24"
+  resolved "https://registry.yarnpkg.com/@polkadot/jsonrpc/-/jsonrpc-1.6.0-beta.24.tgz#ecf81edc2750a30184179a638b57acb5c6593953"
+  integrity sha512-EMbpr6RwfBrrfZw8PA8cyH09yWGfmNpwhUstXEoA2oZGZ2/xXXE6DH+wYnMIDsjKD+3ZEtnkCexilB/beEYWPQ==
+  dependencies:
+    "@babel/runtime" "^7.8.4"
+    "@polkadot/types" "1.6.0-beta.24"
+    "@polkadot/util" "^2.6.1"
+
+"@polkadot/keyring@^2.6.1":
+  version "2.18.1"
+  resolved "https://registry.yarnpkg.com/@polkadot/keyring/-/keyring-2.18.1.tgz#77fae6f25e078a940f87bb3f5bed4c185513ea9d"
+  integrity sha512-7eviDkw5hWqCCUohWNPGroWTnLgZnC4qNWaQmGys8KRx8f81TnrfMjR0ZBBw+9JKYJ4dtG6zFBZGK5plCWqU0w==
   dependencies:
-    "@babel/runtime" "^7.8.7"
-    "@polkadot/util" "2.6.2"
-    "@polkadot/util-crypto" "2.6.2"
+    "@babel/runtime" "^7.10.4"
+    "@polkadot/util" "2.18.1"
+    "@polkadot/util-crypto" "2.18.1"
 
-"@polkadot/metadata@1.8.1":
-  version "1.8.1"
-  resolved "https://registry.npm.taobao.org/@polkadot/metadata/download/@polkadot/metadata-1.8.1.tgz#879a3f011fcd78765e6560eefc6ce1124d94c02a"
-  integrity sha1-h5o/AR/NeHZeZWDu/GzhEk2UwCo=
+"@polkadot/metadata@1.6.0-beta.24":
+  version "1.6.0-beta.24"
+  resolved "https://registry.yarnpkg.com/@polkadot/metadata/-/metadata-1.6.0-beta.24.tgz#7ff7245908430171128ddb2f2926aae0a9ae5b40"
+  integrity sha512-ohmmbuAxaDFmp+k9dH/1iPGbmLv/pg5U2KV7bqzp8Am1zTn35AyzVbgZdqTdldx8GtF6G++W6Mwhvdzi4D7mcw==
   dependencies:
-    "@babel/runtime" "^7.9.2"
-    "@polkadot/types" "1.8.1"
-    "@polkadot/util" "^2.6.2"
-    "@polkadot/util-crypto" "^2.6.2"
+    "@babel/runtime" "^7.8.4"
+    "@polkadot/types" "1.6.0-beta.24"
+    "@polkadot/util" "^2.6.1"
+    "@polkadot/util-crypto" "^2.6.1"
     bn.js "^5.1.1"
 
-"@polkadot/rpc-core@1.8.1":
-  version "1.8.1"
-  resolved "https://registry.npm.taobao.org/@polkadot/rpc-core/download/@polkadot/rpc-core-1.8.1.tgz#be1c9393e8a4509fcd12e6ea1c54e5c686125a96"
-  integrity sha1-vhyTk+ikUJ/NEubqHFTlxoYSWpY=
+"@polkadot/rpc-core@1.6.0-beta.24":
+  version "1.6.0-beta.24"
+  resolved "https://registry.yarnpkg.com/@polkadot/rpc-core/-/rpc-core-1.6.0-beta.24.tgz#a91934aa40b7e3bbdd143ea35c15fb90449c6ebd"
+  integrity sha512-wjn+JeF9bxhXtCn/1Ffx+mFGMXBkf3TMlolJcnMXOAx7xYDyotNEYANE2sPSpeyXQwgvPO0+BtqCNzAwBd4kkQ==
   dependencies:
-    "@babel/runtime" "^7.9.2"
-    "@polkadot/metadata" "1.8.1"
-    "@polkadot/rpc-provider" "1.8.1"
-    "@polkadot/types" "1.8.1"
-    "@polkadot/util" "^2.6.2"
+    "@babel/runtime" "^7.8.4"
+    "@polkadot/jsonrpc" "1.6.0-beta.24"
+    "@polkadot/metadata" "1.6.0-beta.24"
+    "@polkadot/rpc-provider" "1.6.0-beta.24"
+    "@polkadot/types" "1.6.0-beta.24"
+    "@polkadot/util" "^2.6.1"
     memoizee "^0.4.14"
     rxjs "^6.5.4"
 
-"@polkadot/rpc-provider@1.8.1":
-  version "1.8.1"
-  resolved "https://registry.npm.taobao.org/@polkadot/rpc-provider/download/@polkadot/rpc-provider-1.8.1.tgz#66b4894658081cb8c701cacb2a11f1532bd49e44"
-  integrity sha1-ZrSJRlgIHLjHAcrLKhHxUyvUnkQ=
+"@polkadot/rpc-provider@1.6.0-beta.24":
+  version "1.6.0-beta.24"
+  resolved "https://registry.yarnpkg.com/@polkadot/rpc-provider/-/rpc-provider-1.6.0-beta.24.tgz#0b89a546bab5a957f4aff4a86750cb05a4c67862"
+  integrity sha512-q1VtrmMVlobv+BCP51qbQgR1gT5f50Ih0Fnzjqun6+/7OvKxQjLjJ4lCdFpMl1DJPJ3FjwCzs72Mb0nCKsy6wQ==
   dependencies:
-    "@babel/runtime" "^7.9.2"
-    "@polkadot/metadata" "1.8.1"
-    "@polkadot/types" "1.8.1"
-    "@polkadot/util" "^2.6.2"
-    "@polkadot/util-crypto" "^2.6.2"
+    "@babel/runtime" "^7.8.4"
+    "@polkadot/jsonrpc" "1.6.0-beta.24"
+    "@polkadot/metadata" "1.6.0-beta.24"
+    "@polkadot/types" "1.6.0-beta.24"
+    "@polkadot/util" "^2.6.1"
+    "@polkadot/util-crypto" "^2.6.1"
     bn.js "^5.1.1"
     eventemitter3 "^4.0.0"
     isomorphic-fetch "^2.2.1"
     websocket "^1.0.31"
 
-"@polkadot/types@1.8.1":
-  version "1.8.1"
-  resolved "https://registry.npm.taobao.org/@polkadot/types/download/@polkadot/types-1.8.1.tgz#1ff499653aefbcc6ff852c830b74e9a31ac12806"
-  integrity sha1-H/SZZTrvvMb/hSyDC3TpoxrBKAY=
+"@polkadot/types@1.6.0-beta.24":
+  version "1.6.0-beta.24"
+  resolved "https://registry.yarnpkg.com/@polkadot/types/-/types-1.6.0-beta.24.tgz#cb7076da37d4e2e9b491033c0af0e9816fcd11be"
+  integrity sha512-thR0oC932F+xmqoRJgEgaInU+DUs2lf8Xtm2HYSLXcbA8krP1mswwGJY06Zo5zI58wJ7gDuGGUzxcLV1HnNMiw==
   dependencies:
-    "@babel/runtime" "^7.9.2"
-    "@polkadot/metadata" "1.8.1"
-    "@polkadot/util" "^2.6.2"
-    "@polkadot/util-crypto" "^2.6.2"
+    "@babel/runtime" "^7.8.4"
+    "@polkadot/metadata" "1.6.0-beta.24"
+    "@polkadot/util" "^2.6.1"
+    "@polkadot/util-crypto" "^2.6.1"
     "@types/bn.js" "^4.11.6"
     bn.js "^5.1.1"
     memoizee "^0.4.14"
     rxjs "^6.5.4"
 
-"@polkadot/util-crypto@2.6.2", "@polkadot/util-crypto@^2.6.2":
-  version "2.6.2"
-  resolved "https://registry.npm.taobao.org/@polkadot/util-crypto/download/@polkadot/util-crypto-2.6.2.tgz#6118de39986a42213406e629fcb79ff74cabede6"
-  integrity sha1-YRjeOZhqQiE0BuYp/Lef90yr7eY=
+"@polkadot/util-crypto@2.18.1", "@polkadot/util-crypto@^2.6.1":
+  version "2.18.1"
+  resolved "https://registry.yarnpkg.com/@polkadot/util-crypto/-/util-crypto-2.18.1.tgz#c4c36cd49c303f551f878a573f516479c94aeafe"
+  integrity sha512-RqCIv+WKLStJXhZcE+pT3V/xQvt7V74laqhLyLKIsVXPpeuKDiTxt0E5EB+gkuW1eTC4A03kitULcNA5w4JtFw==
   dependencies:
-    "@babel/runtime" "^7.8.7"
-    "@polkadot/util" "2.6.2"
+    "@babel/runtime" "^7.10.4"
+    "@polkadot/util" "2.18.1"
     "@polkadot/wasm-crypto" "^1.2.1"
     base-x "^3.0.8"
     bip39 "^3.0.2"
     blakejs "^1.1.0"
-    bn.js "^5.1.1"
-    bs58 "^4.0.1"
-    elliptic "^6.5.2"
+    bn.js "^5.1.2"
+    elliptic "^6.5.3"
     js-sha3 "^0.8.0"
-    pbkdf2 "^3.0.17"
+    pbkdf2 "^3.1.1"
     tweetnacl "^1.0.3"
     xxhashjs "^0.2.2"
 
-"@polkadot/util@2.6.2", "@polkadot/util@^2.6.2":
-  version "2.6.2"
-  resolved "https://registry.npm.taobao.org/@polkadot/util/download/@polkadot/util-2.6.2.tgz#1d32819b2451a695e9117ec8aef08a3ee1a2524f"
-  integrity sha1-HTKBmyRRppXpEX7IrvCKPuGiUk8=
+"@polkadot/util@2.18.1", "@polkadot/util@^2.6.1":
+  version "2.18.1"
+  resolved "https://registry.yarnpkg.com/@polkadot/util/-/util-2.18.1.tgz#81380f21e47f3c5657ef09be7c477a72838d35eb"
+  integrity sha512-0KAojJMR5KDaaobIyvHVuW9vBP5LG3S0vpRSovB4UPlGDok3ETJSm5lMhA0t2KM8C4gXGBakCotFVGSOvWGgjA==
   dependencies:
-    "@babel/runtime" "^7.8.7"
+    "@babel/runtime" "^7.10.4"
     "@types/bn.js" "^4.11.6"
-    bn.js "^5.1.1"
+    bn.js "^5.1.2"
     camelcase "^5.3.1"
-    chalk "^3.0.0"
+    chalk "^4.1.0"
     ip-regex "^4.1.0"
 
 "@polkadot/wasm-crypto@^1.2.1":
@@ -1217,7 +1234,7 @@ balanced-match@^1.0.0:
   resolved "https://registry.npm.taobao.org/balanced-match/download/balanced-match-1.0.0.tgz#89b4d199ab2bee49de164ea02b89ce462d71b767"
   integrity sha1-ibTRmasr7kneFk6gK4nORi1xt2c=
 
-base-x@^3.0.2, base-x@^3.0.8:
+base-x@^3.0.8:
   version "3.0.8"
   resolved "https://registry.npm.taobao.org/base-x/download/base-x-3.0.8.tgz#1e1106c2537f0162e8b52474a557ebb09000018d"
   integrity sha1-HhEGwlN/AWLotSR0pVfrsJAAAY0=
@@ -1284,11 +1301,21 @@ bn.js@^4.0.0, bn.js@^4.1.0, bn.js@^4.1.1, bn.js@^4.4.0:
   resolved "https://registry.npm.taobao.org/bn.js/download/bn.js-4.11.8.tgz#2cde09eb5ee341f484746bb0309b3253b1b1442f"
   integrity sha1-LN4J617jQfSEdGuwMJsyU7GxRC8=
 
+bn.js@^4.11.9:
+  version "4.12.0"
+  resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.12.0.tgz#775b3f278efbb9718eec7361f483fb36fbbfea88"
+  integrity sha512-c98Bf3tPniI+scsdk237ku1Dc3ujXQTSgyiPUDEOe7tRkhrqridvh8klBv0HCEso1OLOYcHuCv/cS6DNxKH+ZA==
+
 bn.js@^5.1.1:
   version "5.1.1"
   resolved "https://registry.npm.taobao.org/bn.js/download/bn.js-5.1.1.tgz#48efc4031a9c4041b9c99c6941d903463ab62eb5"
   integrity sha1-SO/EAxqcQEG5yZxpQdkDRjq2LrU=
 
+bn.js@^5.1.2:
+  version "5.2.0"
+  resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-5.2.0.tgz#358860674396c6997771a9d051fcc1b57d4ae002"
+  integrity sha512-D7iWRBvnZE8ecXiLj/9wbxH7Tk79fAh8IHaTNq1RWRixsS02W+5qS+iE9yq6RYl0asXx5tw0bLhmT5pIfbSquw==
+
 brace-expansion@^1.1.7:
   version "1.1.11"
   resolved "https://registry.npm.taobao.org/brace-expansion/download/brace-expansion-1.1.11.tgz#3c7fcbf529d87226f3d2f52b966ff5271eb441dd"
@@ -1313,9 +1340,9 @@ braces@^2.3.1, braces@^2.3.2:
     split-string "^3.0.2"
     to-regex "^3.0.1"
 
-brorand@^1.0.1:
+brorand@^1.0.1, brorand@^1.1.0:
   version "1.1.0"
-  resolved "https://registry.npm.taobao.org/brorand/download/brorand-1.1.0.tgz#12c25efe40a45e3c323eb8675a0a0ce57b22371f"
+  resolved "https://registry.yarnpkg.com/brorand/-/brorand-1.1.0.tgz#12c25efe40a45e3c323eb8675a0a0ce57b22371f"
   integrity sha1-EsJe/kCkXjwyPrhnWgoM5XsiNx8=
 
 browserify-aes@^1.0.0, browserify-aes@^1.0.4:
@@ -1378,21 +1405,15 @@ browserify-zlib@^0.2.0:
     pako "~1.0.5"
 
 browserslist@^4.8.3, browserslist@^4.9.1:
-  version "4.11.0"
-  resolved "https://registry.npm.taobao.org/browserslist/download/browserslist-4.11.0.tgz#aef4357b10a8abda00f97aac7cd587b2082ba1ad"
-  integrity sha1-rvQ1exCoq9oA+XqsfNWHsggroa0=
-  dependencies:
-    caniuse-lite "^1.0.30001035"
-    electron-to-chromium "^1.3.380"
-    node-releases "^1.1.52"
-    pkg-up "^3.1.0"
-
-bs58@^4.0.1:
-  version "4.0.1"
-  resolved "https://registry.npm.taobao.org/bs58/download/bs58-4.0.1.tgz#be161e76c354f6f788ae4071f63f34e8c4f0a42a"
-  integrity sha1-vhYedsNU9veIrkBx9j806MTwpCo=
+  version "4.16.6"
+  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-4.16.6.tgz#d7901277a5a88e554ed305b183ec9b0c08f66fa2"
+  integrity sha512-Wspk/PqO+4W9qp5iUTJsa1B/QrYn1keNCcEP5OvP7WBwT4KaDly0uONYmC6Xa3Z5IqnUgS0KcgLYu1l74x0ZXQ==
   dependencies:
-    base-x "^3.0.2"
+    caniuse-lite "^1.0.30001219"
+    colorette "^1.2.2"
+    electron-to-chromium "^1.3.723"
+    escalade "^3.1.1"
+    node-releases "^1.1.71"
 
 buffer-from@^1.0.0:
   version "1.1.1"
@@ -1459,10 +1480,10 @@ camelcase@^5.0.0, camelcase@^5.3.1:
   resolved "https://registry.npm.taobao.org/camelcase/download/camelcase-5.3.1.tgz#e3c9b31569e106811df242f715725a1f4c494320"
   integrity sha1-48mzFWnhBoEd8kL3FXJaH0xJQyA=
 
-caniuse-lite@^1.0.30001035:
-  version "1.0.30001038"
-  resolved "https://registry.npm.taobao.org/caniuse-lite/download/caniuse-lite-1.0.30001038.tgz?cache=0&sync_timestamp=1585200902309&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fcaniuse-lite%2Fdownload%2Fcaniuse-lite-1.0.30001038.tgz#44da3cbca2ab6cb6aa83d1be5d324e17f141caff"
-  integrity sha1-RNo8vKKrbLaqg9G+XTJOF/FByv8=
+caniuse-lite@^1.0.30001219:
+  version "1.0.30001230"
+  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001230.tgz#8135c57459854b2240b57a4a6786044bdc5a9f71"
+  integrity sha512-5yBd5nWCBS+jWKTcHOzXwo5xzcj4ePE/yjtkZyUV1BTUmrBaA9MRGC+e7mxnqXSA90CmCA8L3eKLaSUkt099IQ==
 
 chalk@2.4.2, chalk@^2.0.0:
   version "2.4.2"
@@ -1473,10 +1494,10 @@ chalk@2.4.2, chalk@^2.0.0:
     escape-string-regexp "^1.0.5"
     supports-color "^5.3.0"
 
-chalk@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.npm.taobao.org/chalk/download/chalk-3.0.0.tgz?cache=0&sync_timestamp=1573282949696&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fchalk%2Fdownload%2Fchalk-3.0.0.tgz#3f73c2bf526591f574cc492c51e2456349f844e4"
-  integrity sha1-P3PCv1JlkfV0zEksUeJFY0n4ROQ=
+chalk@^4.1.0:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/chalk/-/chalk-4.1.1.tgz#c80b3fab28bf6371e6863325eee67e618b77e6ad"
+  integrity sha512-diHzdDKxcU+bAsUboHLPEDQiw0qEe0qd7SYUn3HgcFlWgbDcfLGswOHYeGrHKzG9z6UYf01d9VFMfZxPM1xZSg==
   dependencies:
     ansi-styles "^4.1.0"
     supports-color "^7.1.0"
@@ -1571,6 +1592,11 @@ color-name@~1.1.4:
   resolved "https://registry.npm.taobao.org/color-name/download/color-name-1.1.4.tgz#c2a09a87acbde69543de6f63fa3995c826c536a2"
   integrity sha1-wqCah6y95pVD3m9j+jmVyCbFNqI=
 
+colorette@^1.2.2:
+  version "1.2.2"
+  resolved "https://registry.yarnpkg.com/colorette/-/colorette-1.2.2.tgz#cbcc79d5e99caea2dbf10eb3a26fd8b3e6acfa94"
+  integrity sha512-MKGMzyfeuutC/ZJ1cba9NqcNpfeqMUcYmyF1ZFY6/Cn7CNSAKx6a+s48sqLqyAiZuaP2TcqMhoo+dlwFnVxT9w==
+
 commander@^2.20.0:
   version "2.20.3"
   resolved "https://registry.npm.taobao.org/commander/download/commander-2.20.3.tgz?cache=0&sync_timestamp=1584148407069&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fcommander%2Fdownload%2Fcommander-2.20.3.tgz#fd485e84c03eb4881c20722ba48035e8531aeb33"
@@ -1820,12 +1846,12 @@ duplexify@^3.4.2, duplexify@^3.6.0:
     readable-stream "^2.0.0"
     stream-shift "^1.0.0"
 
-electron-to-chromium@^1.3.380:
-  version "1.3.390"
-  resolved "https://registry.npm.taobao.org/electron-to-chromium/download/electron-to-chromium-1.3.390.tgz#a49e67dea22e52ea8027c475dd5447b1c00b1d4e"
-  integrity sha1-pJ5n3qIuUuqAJ8R13VRHscALHU4=
+electron-to-chromium@^1.3.723:
+  version "1.3.739"
+  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.739.tgz#f07756aa92cabd5a6eec6f491525a64fe62f98b9"
+  integrity sha512-+LPJVRsN7hGZ9EIUUiWCpO7l4E3qBYHNadazlucBfsXBbccDFNKUBAgzE68FnkWGJPwD/AfKhSzL+G+Iqb8A4A==
 
-elliptic@^6.0.0, elliptic@^6.5.2:
+elliptic@^6.0.0:
   version "6.5.2"
   resolved "https://registry.npm.taobao.org/elliptic/download/elliptic-6.5.2.tgz#05c5678d7173c049d8ca433552224a495d0e3762"
   integrity sha1-BcVnjXFzwEnYykM1UiJKSV0ON2I=
@@ -1838,6 +1864,19 @@ elliptic@^6.0.0, elliptic@^6.5.2:
     minimalistic-assert "^1.0.0"
     minimalistic-crypto-utils "^1.0.0"
 
+elliptic@^6.5.3:
+  version "6.5.4"
+  resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.5.4.tgz#da37cebd31e79a1367e941b592ed1fbebd58abbb"
+  integrity sha512-iLhC6ULemrljPZb+QutR5TQGB+pdW6KGD5RSegS+8sorOZT+rdQFbsQFJgvN3eRqNALqJer4oQ16YvJHlU8hzQ==
+  dependencies:
+    bn.js "^4.11.9"
+    brorand "^1.1.0"
+    hash.js "^1.0.0"
+    hmac-drbg "^1.0.1"
+    inherits "^2.0.4"
+    minimalistic-assert "^1.0.1"
+    minimalistic-crypto-utils "^1.0.1"
+
 emoji-regex@^7.0.1:
   version "7.0.3"
   resolved "https://registry.npm.taobao.org/emoji-regex/download/emoji-regex-7.0.3.tgz#933a04052860c85e83c122479c4748a8e4c72156"
@@ -1928,6 +1967,11 @@ es6-weak-map@^2.0.2:
     es6-iterator "^2.0.3"
     es6-symbol "^3.1.1"
 
+escalade@^3.1.1:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/escalade/-/escalade-3.1.1.tgz#d8cfdc7000965c5a0174b4a82eaa5c0552742e40"
+  integrity sha512-k0er2gUkLf8O0zKJiAhmkTnJlTvINGv7ygDNPbeIsX/TJjGJZHuh9B2UxbsaEkmlEo9MfhrSzmhIlhRlI2GXnw==
+
 escape-string-regexp@^1.0.5:
   version "1.0.5"
   resolved "https://registry.npm.taobao.org/escape-string-regexp/download/escape-string-regexp-1.0.5.tgz#1b61c0562190a8dff6ae3bb2cf0200ca130b86d4"
@@ -2315,9 +2359,9 @@ hash.js@^1.0.0, hash.js@^1.0.3:
     inherits "^2.0.3"
     minimalistic-assert "^1.0.1"
 
-hmac-drbg@^1.0.0:
+hmac-drbg@^1.0.0, hmac-drbg@^1.0.1:
   version "1.0.1"
-  resolved "https://registry.npm.taobao.org/hmac-drbg/download/hmac-drbg-1.0.1.tgz#d2745701025a6c775a6c545793ed502fc0c649a1"
+  resolved "https://registry.yarnpkg.com/hmac-drbg/-/hmac-drbg-1.0.1.tgz#d2745701025a6c775a6c545793ed502fc0c649a1"
   integrity sha1-0nRXAQJabHdabFRXk+1QL8DGSaE=
   dependencies:
     hash.js "^1.0.3"
@@ -2379,7 +2423,7 @@ inflight@^1.0.4:
     once "^1.3.0"
     wrappy "1"
 
-inherits@2, inherits@^2.0.1, inherits@^2.0.3, inherits@~2.0.1, inherits@~2.0.3:
+inherits@2, inherits@^2.0.1, inherits@^2.0.3, inherits@^2.0.4, inherits@~2.0.1, inherits@~2.0.3:
   version "2.0.4"
   resolved "https://registry.npm.taobao.org/inherits/download/inherits-2.0.4.tgz#0fa2c64f932917c3433a0ded55363aae37416b7c"
   integrity sha1-D6LGT5MpF8NDOg3tVTY6rjdBa3w=
@@ -2989,10 +3033,10 @@ node-libs-browser@^2.2.1:
     util "^0.11.0"
     vm-browserify "^1.0.1"
 
-node-releases@^1.1.52:
-  version "1.1.53"
-  resolved "https://registry.npm.taobao.org/node-releases/download/node-releases-1.1.53.tgz#2d821bfa499ed7c5dffc5e2f28c88e78a08ee3f4"
-  integrity sha1-LYIb+kme18Xf/F4vKMiOeKCO4/Q=
+node-releases@^1.1.71:
+  version "1.1.72"
+  resolved "https://registry.yarnpkg.com/node-releases/-/node-releases-1.1.72.tgz#14802ab6b1039a79a0c7d662b610a5bbd76eacbe"
+  integrity sha512-LLUo+PpH3dU6XizX3iVoubUNheF/owjXCZZ5yACDxNnPtgFuludV1ZL3ayK1kVep42Rmm0+R9/Y60NQbZ2bifw==
 
 normalize-path@^2.1.1:
   version "2.1.1"
@@ -3177,7 +3221,7 @@ path-parse@^1.0.6:
   resolved "https://registry.npm.taobao.org/path-parse/download/path-parse-1.0.6.tgz#d62dbb5679405d72c4737ec58600e9ddcf06d24c"
   integrity sha1-1i27VnlAXXLEc37FhgDp3c8G0kw=
 
-pbkdf2@^3.0.17, pbkdf2@^3.0.3, pbkdf2@^3.0.9:
+pbkdf2@^3.0.3, pbkdf2@^3.0.9:
   version "3.0.17"
   resolved "https://registry.npm.taobao.org/pbkdf2/download/pbkdf2-3.0.17.tgz#976c206530617b14ebb32114239f7b09336e93a6"
   integrity sha1-l2wgZTBhexTrsyEUI597CTNuk6Y=
@@ -3188,6 +3232,17 @@ pbkdf2@^3.0.17, pbkdf2@^3.0.3, pbkdf2@^3.0.9:
     safe-buffer "^5.0.1"
     sha.js "^2.4.8"
 
+pbkdf2@^3.1.1:
+  version "3.1.2"
+  resolved "https://registry.yarnpkg.com/pbkdf2/-/pbkdf2-3.1.2.tgz#dd822aa0887580e52f1a039dc3eda108efae3075"
+  integrity sha512-iuh7L6jA7JEGu2WxDwtQP1ddOpaJNC4KlDEFfdQajSGgGPNi4OyDc2R7QnbY2bR9QjBVGwgvTdNJZoE7RaxUMA==
+  dependencies:
+    create-hash "^1.1.2"
+    create-hmac "^1.1.4"
+    ripemd160 "^2.0.1"
+    safe-buffer "^5.0.1"
+    sha.js "^2.4.8"
+
 pify@^4.0.1:
   version "4.0.1"
   resolved "https://registry.npm.taobao.org/pify/download/pify-4.0.1.tgz#4b2cd25c50d598735c50292224fd8c6df41e3231"
@@ -3200,13 +3255,6 @@ pkg-dir@^3.0.0:
   dependencies:
     find-up "^3.0.0"
 
-pkg-up@^3.1.0:
-  version "3.1.0"
-  resolved "https://registry.npm.taobao.org/pkg-up/download/pkg-up-3.1.0.tgz#100ec235cc150e4fd42519412596a28512a0def5"
-  integrity sha1-EA7CNcwVDk/UJRlBJZaihRKg3vU=
-  dependencies:
-    find-up "^3.0.0"
-
 posix-character-classes@^0.1.0:
   version "0.1.1"
   resolved "https://registry.npm.taobao.org/posix-character-classes/download/posix-character-classes-0.1.1.tgz#01eac0fe3b5af71a2a6c02feabb8c1fef7e00eab"