diff --git a/packages/extension-app/package.json b/packages/extension-app/package.json
index 3b3d93ecd..58e9a9a8d 100644
--- a/packages/extension-app/package.json
+++ b/packages/extension-app/package.json
@@ -13,7 +13,7 @@
   },
   "dependencies": {
     "@polkadot/extension-base": "^0.25.1",
-    "@polkadot/extension-chains": "^0.31.1",
+    "@polkadot/extension-chains": "^0.35.1",
     "@substrate/context": "^0.5.1",
     "@substrate/light": "^0.3.32"
   },
diff --git a/yarn.lock b/yarn.lock
index ff259bdf9..9fc069bcb 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1200,10 +1200,10 @@
   dependencies:
     regenerator-runtime "^0.13.4"
 
-"@babel/runtime@^7.0.0", "@babel/runtime@^7.1.2", "@babel/runtime@^7.10.2", "@babel/runtime@^7.10.3", "@babel/runtime@^7.10.4", "@babel/runtime@^7.3.1", "@babel/runtime@^7.3.4", "@babel/runtime@^7.4.4", "@babel/runtime@^7.4.5", "@babel/runtime@^7.5.0", "@babel/runtime@^7.5.5", "@babel/runtime@^7.6.3", "@babel/runtime@^7.7.2", "@babel/runtime@^7.7.6", "@babel/runtime@^7.8.4", "@babel/runtime@^7.8.7", "@babel/runtime@^7.9.2", "@babel/runtime@^7.9.6":
-  version "7.10.4"
-  resolved "https://registry.yarnpkg.com/@babel/runtime/-/runtime-7.10.4.tgz#a6724f1a6b8d2f6ea5236dbfe58c7d7ea9c5eb99"
-  integrity sha512-UpTN5yUJr9b4EX2CnGNWIvER7Ab83ibv0pcvvHc4UOdrBI5jb8bj+32cCwPX6xu0mt2daFNjYhoi+X7beH0RSw==
+"@babel/runtime@^7.0.0", "@babel/runtime@^7.1.2", "@babel/runtime@^7.10.2", "@babel/runtime@^7.10.3", "@babel/runtime@^7.10.4", "@babel/runtime@^7.12.5", "@babel/runtime@^7.3.1", "@babel/runtime@^7.3.4", "@babel/runtime@^7.4.4", "@babel/runtime@^7.4.5", "@babel/runtime@^7.5.0", "@babel/runtime@^7.5.5", "@babel/runtime@^7.6.3", "@babel/runtime@^7.7.2", "@babel/runtime@^7.7.6", "@babel/runtime@^7.8.4", "@babel/runtime@^7.8.7", "@babel/runtime@^7.9.2", "@babel/runtime@^7.9.6":
+  version "7.12.5"
+  resolved "https://registry.yarnpkg.com/@babel/runtime/-/runtime-7.12.5.tgz#410e7e487441e1b360c29be715d870d9b985882e"
+  integrity sha512-plcc+hbExy3McchJCEQG3knOsuh3HH+Prx1P6cLIkET/0dLuQDEnrT+s27Axgc9bqfsmNUNHfscgMUdBpC9xfg==
   dependencies:
     regenerator-runtime "^0.13.4"
 
@@ -2901,12 +2901,13 @@
     "@polkadot/keyring" "^2.10.1"
     "@polkadot/ui-keyring" "^0.53.1"
 
-"@polkadot/extension-chains@^0.31.1":
-  version "0.31.1"
-  resolved "https://registry.yarnpkg.com/@polkadot/extension-chains/-/extension-chains-0.31.1.tgz#989af532e48984e94fa5ddbe3d896a550bc26632"
-  integrity sha512-0y/GjCYzyEuy20kSTzJ5GN3h7kATayHM2UgrA2nMZaePw3ZcwVqulg2jrTO0NogXOiJZNtkwg+to7xetScpk8A==
+"@polkadot/extension-chains@^0.35.1":
+  version "0.35.1"
+  resolved "https://registry.yarnpkg.com/@polkadot/extension-chains/-/extension-chains-0.35.1.tgz#07ad4e6e7fdc2d17bf0c12cf85c521e7178c171a"
+  integrity sha512-SbBN84udaMnMAzo2tgcuMxrDQpctLIDravur0tx671Aw1MDjgWkBeIlVToBASjSDjJCJ4GqWyR3GfXJ0uKxzmg==
   dependencies:
-    "@babel/runtime" "^7.10.3"
+    "@babel/runtime" "^7.12.5"
+    "@polkadot/networks" "^4.2.1"
 
 "@polkadot/extension-dapp@^0.31.1":
   version "0.31.1"
@@ -2953,6 +2954,13 @@
     "@polkadot/util-crypto" "^2.17.1"
     bn.js "^5.1.2"
 
+"@polkadot/networks@^4.2.1":
+  version "4.2.1"
+  resolved "https://registry.yarnpkg.com/@polkadot/networks/-/networks-4.2.1.tgz#b0ca69807ed60189f1c958bb27cfeb3cb1c6b12b"
+  integrity sha512-T1tg0V0uG09Vdce2O4KfEcWO3/fZh4VYt0bmJ6iPwC+x6yv939X2BKvuFTDDVNT3fqBpGzWQlwiTXYQ15o9bGA==
+  dependencies:
+    "@babel/runtime" "^7.12.5"
+
 "@polkadot/react-identicon@^0.54.1":
   version "0.54.1"
   resolved "https://registry.yarnpkg.com/@polkadot/react-identicon/-/react-identicon-0.54.1.tgz#a68db55cdbbb1b2b8bb10567ce8d943966157b8a"
@@ -16797,9 +16805,9 @@ prettier-linter-helpers@^1.0.0:
     fast-diff "^1.1.2"
 
 prettier@>=2.0.1, prettier@^1.18.2, prettier@^2.0.4:
-  version "2.0.5"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.0.5.tgz#d6d56282455243f2f92cc1716692c08aa31522d4"
-  integrity sha512-7PtVymN48hGcO4fGjybyBSIWDsLU4H4XlvOHfq91pz9kkGlonzwTfYkaIEwiRg/dAJF9YlbsduBAgtYLi+8cFg==
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.2.1.tgz#795a1a78dd52f073da0cd42b21f9c91381923ff5"
+  integrity sha512-PqyhM2yCjg/oKkFPtTGUojv7gnZAoG80ttl45O6x2Ug/rMJw4wcc9k6aaf2hibP7BGVCCM33gZoGjyvt9mm16Q==
 
 pretty-bytes@^5.1.0:
   version "5.3.0"