diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2ce94c943..16ed12727 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+## [0.3.5] - 20211026.
+
+* bump polkawallet_sdk: 0.3.6.
+* hide material loading indicator on entry staking page.
+
 ## [0.3.4] - 20211019.
 
 * bump polkawallet_sdk: 0.3.5.
diff --git a/example/pubspec.lock b/example/pubspec.lock
index 7196fd713..914ca91b0 100644
--- a/example/pubspec.lock
+++ b/example/pubspec.lock
@@ -5,112 +5,112 @@ packages:
     dependency: transitive
     description:
       name: aes_ecb_pkcs5_flutter
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.1.2"
   async:
     dependency: transitive
     description:
       name: async
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.8.2"
   auth_header:
     dependency: transitive
     description:
       name: auth_header
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.1"
   characters:
     dependency: transitive
     description:
       name: characters
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.0"
   charcode:
     dependency: transitive
     description:
       name: charcode
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.3.1"
   charts_common:
     dependency: transitive
     description:
       name: charts_common
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.11.0"
   charts_flutter:
     dependency: transitive
     description:
       name: charts_flutter
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.11.0"
   clock:
     dependency: transitive
     description:
       name: clock
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.0"
   collection:
     dependency: transitive
     description:
       name: collection
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.15.0"
   convert:
     dependency: transitive
     description:
       name: convert
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.1"
   cross_file:
     dependency: transitive
     description:
       name: cross_file
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.3.1+5"
   crypto:
     dependency: transitive
     description:
       name: crypto
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.1"
   cupertino_icons:
     dependency: "direct main"
     description:
       name: cupertino_icons
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.3"
   dropdown_search:
     dependency: transitive
     description:
       name: dropdown_search
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.6.3"
   ffi:
     dependency: transitive
     description:
       name: ffi
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.2"
   file:
     dependency: transitive
     description:
       name: file
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "6.1.2"
   flutter:
@@ -122,7 +122,7 @@ packages:
     dependency: transitive
     description:
       name: flutter_inappwebview
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "5.3.2"
   flutter_localizations:
@@ -134,28 +134,28 @@ packages:
     dependency: "direct main"
     description:
       name: flutter_mobx
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.2"
   flutter_plugin_android_lifecycle:
     dependency: transitive
     description:
       name: flutter_plugin_android_lifecycle
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.4"
   flutter_qr_scan:
     dependency: transitive
     description:
       name: flutter_qr_scan
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.7"
   flutter_svg:
     dependency: transitive
     description:
       name: flutter_svg
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.23.0+1"
   flutter_web_plugins:
@@ -167,224 +167,224 @@ packages:
     dependency: transitive
     description:
       name: get
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "4.3.8"
   get_storage:
     dependency: transitive
     description:
       name: get_storage
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.3"
   http:
     dependency: transitive
     description:
       name: http
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.13.4"
   http_parser:
     dependency: transitive
     description:
       name: http_parser
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "4.0.0"
   http_server:
     dependency: transitive
     description:
       name: http_server
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.0"
   image_picker:
     dependency: transitive
     description:
       name: image_picker
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.7.5+4"
   image_picker_for_web:
     dependency: transitive
     description:
       name: image_picker_for_web
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.4"
   image_picker_platform_interface:
     dependency: transitive
     description:
       name: image_picker_platform_interface
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.4.1"
   intl:
     dependency: transitive
     description:
       name: intl
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.17.0"
   jaguar:
     dependency: transitive
     description:
       name: jaguar
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.12"
   jaguar_common:
     dependency: transitive
     description:
       name: jaguar_common
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.0"
   jaguar_flutter_asset:
     dependency: transitive
     description:
       name: jaguar_flutter_asset
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.0"
   js:
     dependency: transitive
     description:
       name: js
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.6.3"
   json_annotation:
     dependency: transitive
     description:
       name: json_annotation
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "4.3.0"
   logging:
     dependency: transitive
     description:
       name: logging
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.2"
   meta:
     dependency: transitive
     description:
       name: meta
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.7.0"
   mime:
     dependency: transitive
     description:
       name: mime
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.1"
   mobx:
     dependency: transitive
     description:
       name: mobx
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.5"
   path:
     dependency: transitive
     description:
       name: path
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.8.0"
   path_drawing:
     dependency: transitive
     description:
       name: path_drawing
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.5.1+1"
   path_parsing:
     dependency: transitive
     description:
       name: path_parsing
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.2.1"
   path_provider:
     dependency: transitive
     description:
       name: path_provider
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.5"
   path_provider_linux:
     dependency: transitive
     description:
       name: path_provider_linux
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.0"
   path_provider_macos:
     dependency: transitive
     description:
       name: path_provider_macos
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.2"
   path_provider_platform_interface:
     dependency: transitive
     description:
       name: path_provider_platform_interface
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.1"
   path_provider_windows:
     dependency: transitive
     description:
       name: path_provider_windows
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.3"
   path_tree:
     dependency: transitive
     description:
       name: path_tree
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.0"
   permission_handler:
     dependency: transitive
     description:
       name: permission_handler
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "7.2.0"
   permission_handler_platform_interface:
     dependency: transitive
     description:
       name: permission_handler_platform_interface
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.7.0"
   petitparser:
     dependency: transitive
     description:
       name: petitparser
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "4.4.0"
   platform:
     dependency: transitive
     description:
       name: platform
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.2"
   plugin_platform_interface:
     dependency: transitive
     description:
       name: plugin_platform_interface
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.2"
   polkawallet_plugin_kusama:
@@ -393,82 +393,82 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "0.3.4"
+    version: "0.3.5"
   polkawallet_sdk:
     dependency: transitive
     description:
       name: polkawallet_sdk
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.3.5"
+    version: "0.3.6"
   polkawallet_ui:
     dependency: "direct main"
     description:
       name: polkawallet_ui
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.3.4"
+    version: "0.3.5"
   process:
     dependency: transitive
     description:
       name: process
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "4.2.4"
   qr:
     dependency: transitive
     description:
       name: qr
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.0"
   qr_flutter_fork:
     dependency: transitive
     description:
       name: qr_flutter_fork
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "4.0.0"
   shared_preferences:
     dependency: transitive
     description:
       name: shared_preferences
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.8"
   shared_preferences_linux:
     dependency: transitive
     description:
       name: shared_preferences_linux
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.2"
   shared_preferences_macos:
     dependency: transitive
     description:
       name: shared_preferences_macos
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.2"
   shared_preferences_platform_interface:
     dependency: transitive
     description:
       name: shared_preferences_platform_interface
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.0"
   shared_preferences_web:
     dependency: transitive
     description:
       name: shared_preferences_web
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.2"
   shared_preferences_windows:
     dependency: transitive
     description:
       name: shared_preferences_windows
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.2"
   sky_engine:
@@ -480,133 +480,133 @@ packages:
     dependency: transitive
     description:
       name: source_span
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.8.1"
   stack_trace:
     dependency: transitive
     description:
       name: stack_trace
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.10.0"
   string_scanner:
     dependency: transitive
     description:
       name: string_scanner
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.0"
   term_glyph:
     dependency: transitive
     description:
       name: term_glyph
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.2.0"
   typed_data:
     dependency: transitive
     description:
       name: typed_data
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.3.0"
   url_launcher:
     dependency: transitive
     description:
       name: url_launcher
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "6.0.12"
   url_launcher_linux:
     dependency: transitive
     description:
       name: url_launcher_linux
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.2"
   url_launcher_macos:
     dependency: transitive
     description:
       name: url_launcher_macos
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.2"
   url_launcher_platform_interface:
     dependency: transitive
     description:
       name: url_launcher_platform_interface
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.4"
   url_launcher_web:
     dependency: transitive
     description:
       name: url_launcher_web
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.4"
   url_launcher_windows:
     dependency: transitive
     description:
       name: url_launcher_windows
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.2"
   vector_math:
     dependency: transitive
     description:
       name: vector_math
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.0"
   webview_flutter:
     dependency: transitive
     description:
       name: webview_flutter
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.2"
   webview_flutter_android:
     dependency: transitive
     description:
       name: webview_flutter_android
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.15"
   webview_flutter_platform_interface:
     dependency: transitive
     description:
       name: webview_flutter_platform_interface
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.2.0"
   webview_flutter_wkwebview:
     dependency: transitive
     description:
       name: webview_flutter_wkwebview
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.14"
   win32:
     dependency: transitive
     description:
       name: win32
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.2.10"
   xdg_directories:
     dependency: transitive
     description:
       name: xdg_directories
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.2.0"
   xml:
     dependency: transitive
     description:
       name: xml
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "5.3.1"
 sdks:
diff --git a/pubspec.lock b/pubspec.lock
index 84cb97d14..61a6cfc60 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -5,238 +5,238 @@ packages:
     dependency: transitive
     description:
       name: _fe_analyzer_shared
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "22.0.0"
   aes_ecb_pkcs5_flutter:
     dependency: transitive
     description:
       name: aes_ecb_pkcs5_flutter
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.1.2"
   analyzer:
     dependency: transitive
     description:
       name: analyzer
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.7.2"
   args:
     dependency: transitive
     description:
       name: args
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.3.0"
   async:
     dependency: transitive
     description:
       name: async
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.8.1"
   auth_header:
     dependency: transitive
     description:
       name: auth_header
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.1"
   boolean_selector:
     dependency: transitive
     description:
       name: boolean_selector
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.0"
   build:
     dependency: transitive
     description:
       name: build
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.1"
   build_config:
     dependency: transitive
     description:
       name: build_config
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.0"
   build_daemon:
     dependency: transitive
     description:
       name: build_daemon
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.1"
   build_resolvers:
     dependency: transitive
     description:
       name: build_resolvers
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.4"
   build_runner:
     dependency: "direct dev"
     description:
       name: build_runner
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.4"
   build_runner_core:
     dependency: transitive
     description:
       name: build_runner_core
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "7.2.2"
   built_collection:
     dependency: transitive
     description:
       name: built_collection
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "5.1.1"
   built_value:
     dependency: transitive
     description:
       name: built_value
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "8.1.2"
   characters:
     dependency: transitive
     description:
       name: characters
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.0"
   charcode:
     dependency: transitive
     description:
       name: charcode
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.3.1"
   charts_common:
     dependency: transitive
     description:
       name: charts_common
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.11.0"
   charts_flutter:
     dependency: "direct main"
     description:
       name: charts_flutter
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.11.0"
   checked_yaml:
     dependency: transitive
     description:
       name: checked_yaml
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.1"
   cli_util:
     dependency: transitive
     description:
       name: cli_util
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.3.5"
   clock:
     dependency: transitive
     description:
       name: clock
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.0"
   code_builder:
     dependency: transitive
     description:
       name: code_builder
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "4.1.0"
   collection:
     dependency: transitive
     description:
       name: collection
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.15.0"
   convert:
     dependency: transitive
     description:
       name: convert
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.1"
   cross_file:
     dependency: transitive
     description:
       name: cross_file
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.3.1+5"
   crypto:
     dependency: transitive
     description:
       name: crypto
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.1"
   cupertino_icons:
     dependency: "direct main"
     description:
       name: cupertino_icons
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.3"
   dart_style:
     dependency: transitive
     description:
       name: dart_style
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.1"
   dropdown_search:
     dependency: transitive
     description:
       name: dropdown_search
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.6.3"
   fake_async:
     dependency: transitive
     description:
       name: fake_async
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.2.0"
   ffi:
     dependency: transitive
     description:
       name: ffi
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.2"
   file:
     dependency: transitive
     description:
       name: file
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "6.1.2"
   fixnum:
     dependency: transitive
     description:
       name: fixnum
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.0"
   flutter:
@@ -248,35 +248,35 @@ packages:
     dependency: transitive
     description:
       name: flutter_inappwebview
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "5.3.2"
   flutter_mobx:
     dependency: "direct main"
     description:
       name: flutter_mobx
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.2"
   flutter_plugin_android_lifecycle:
     dependency: transitive
     description:
       name: flutter_plugin_android_lifecycle
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.4"
   flutter_qr_scan:
     dependency: transitive
     description:
       name: flutter_qr_scan
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.7"
   flutter_svg:
     dependency: "direct main"
     description:
       name: flutter_svg
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.23.0+1"
   flutter_test:
@@ -293,406 +293,406 @@ packages:
     dependency: transitive
     description:
       name: frontend_server_client
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.2"
   get:
     dependency: transitive
     description:
       name: get
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "4.3.8"
   get_storage:
     dependency: "direct main"
     description:
       name: get_storage
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.3"
   glob:
     dependency: transitive
     description:
       name: glob
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.2"
   graphs:
     dependency: transitive
     description:
       name: graphs
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.0"
   http:
     dependency: "direct main"
     description:
       name: http
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.13.4"
   http_multi_server:
     dependency: transitive
     description:
       name: http_multi_server
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.1"
   http_parser:
     dependency: transitive
     description:
       name: http_parser
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "4.0.0"
   http_server:
     dependency: transitive
     description:
       name: http_server
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.0"
   image_picker:
     dependency: transitive
     description:
       name: image_picker
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.7.5+4"
   image_picker_for_web:
     dependency: transitive
     description:
       name: image_picker_for_web
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.4"
   image_picker_platform_interface:
     dependency: transitive
     description:
       name: image_picker_platform_interface
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.4.1"
   intl:
     dependency: transitive
     description:
       name: intl
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.17.0"
   io:
     dependency: transitive
     description:
       name: io
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.3"
   jaguar:
     dependency: transitive
     description:
       name: jaguar
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.12"
   jaguar_common:
     dependency: transitive
     description:
       name: jaguar_common
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.0"
   jaguar_flutter_asset:
     dependency: transitive
     description:
       name: jaguar_flutter_asset
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.0"
   js:
     dependency: transitive
     description:
       name: js
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.6.3"
   json_annotation:
     dependency: "direct main"
     description:
       name: json_annotation
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "4.1.0"
   json_serializable:
     dependency: "direct dev"
     description:
       name: json_serializable
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "4.1.4"
   logging:
     dependency: transitive
     description:
       name: logging
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.2"
   matcher:
     dependency: transitive
     description:
       name: matcher
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.12.10"
   meta:
     dependency: transitive
     description:
       name: meta
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.7.0"
   mime:
     dependency: transitive
     description:
       name: mime
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.1"
   mobx:
     dependency: "direct main"
     description:
       name: mobx
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.5"
   mobx_codegen:
     dependency: "direct dev"
     description:
       name: mobx_codegen
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.2"
   package_config:
     dependency: transitive
     description:
       name: package_config
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.2"
   path:
     dependency: transitive
     description:
       name: path
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.8.0"
   path_drawing:
     dependency: transitive
     description:
       name: path_drawing
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.5.1+1"
   path_parsing:
     dependency: transitive
     description:
       name: path_parsing
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.2.1"
   path_provider:
     dependency: transitive
     description:
       name: path_provider
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.5"
   path_provider_linux:
     dependency: transitive
     description:
       name: path_provider_linux
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.0"
   path_provider_macos:
     dependency: transitive
     description:
       name: path_provider_macos
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.2"
   path_provider_platform_interface:
     dependency: transitive
     description:
       name: path_provider_platform_interface
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.1"
   path_provider_windows:
     dependency: transitive
     description:
       name: path_provider_windows
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.3"
   path_tree:
     dependency: transitive
     description:
       name: path_tree
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.0"
   pedantic:
     dependency: transitive
     description:
       name: pedantic
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.11.1"
   permission_handler:
     dependency: transitive
     description:
       name: permission_handler
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "7.2.0"
   permission_handler_platform_interface:
     dependency: transitive
     description:
       name: permission_handler_platform_interface
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.7.0"
   petitparser:
     dependency: transitive
     description:
       name: petitparser
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "4.4.0"
   platform:
     dependency: transitive
     description:
       name: platform
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.2"
   plugin_platform_interface:
     dependency: transitive
     description:
       name: plugin_platform_interface
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.2"
   polkawallet_sdk:
     dependency: "direct main"
     description:
       name: polkawallet_sdk
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.3.5"
+    version: "0.3.6"
   polkawallet_ui:
     dependency: "direct main"
     description:
       name: polkawallet_ui
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.3.4"
+    version: "0.3.5"
   pool:
     dependency: transitive
     description:
       name: pool
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.5.0"
   process:
     dependency: transitive
     description:
       name: process
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "4.2.4"
   pub_semver:
     dependency: transitive
     description:
       name: pub_semver
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.0"
   pubspec_parse:
     dependency: transitive
     description:
       name: pubspec_parse
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.0"
   qr:
     dependency: transitive
     description:
       name: qr
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.0"
   qr_flutter_fork:
     dependency: transitive
     description:
       name: qr_flutter_fork
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "4.0.0"
   shared_preferences:
     dependency: transitive
     description:
       name: shared_preferences
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.8"
   shared_preferences_linux:
     dependency: transitive
     description:
       name: shared_preferences_linux
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.2"
   shared_preferences_macos:
     dependency: transitive
     description:
       name: shared_preferences_macos
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.2"
   shared_preferences_platform_interface:
     dependency: transitive
     description:
       name: shared_preferences_platform_interface
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.0"
   shared_preferences_web:
     dependency: transitive
     description:
       name: shared_preferences_web
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.2"
   shared_preferences_windows:
     dependency: transitive
     description:
       name: shared_preferences_windows
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.2"
   shelf:
     dependency: transitive
     description:
       name: shelf
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.2.0"
   shelf_web_socket:
     dependency: transitive
     description:
       name: shelf_web_socket
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.1"
   sky_engine:
@@ -704,189 +704,189 @@ packages:
     dependency: transitive
     description:
       name: source_gen
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.3"
   source_span:
     dependency: transitive
     description:
       name: source_span
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.8.1"
   stack_trace:
     dependency: transitive
     description:
       name: stack_trace
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.10.0"
   stream_channel:
     dependency: transitive
     description:
       name: stream_channel
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.0"
   stream_transform:
     dependency: transitive
     description:
       name: stream_transform
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.0"
   string_scanner:
     dependency: transitive
     description:
       name: string_scanner
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.0"
   term_glyph:
     dependency: transitive
     description:
       name: term_glyph
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.2.0"
   test_api:
     dependency: transitive
     description:
       name: test_api
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.4.2"
   timing:
     dependency: transitive
     description:
       name: timing
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.0"
   typed_data:
     dependency: transitive
     description:
       name: typed_data
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.3.0"
   url_launcher:
     dependency: transitive
     description:
       name: url_launcher
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "6.0.12"
   url_launcher_linux:
     dependency: transitive
     description:
       name: url_launcher_linux
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.2"
   url_launcher_macos:
     dependency: transitive
     description:
       name: url_launcher_macos
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.2"
   url_launcher_platform_interface:
     dependency: transitive
     description:
       name: url_launcher_platform_interface
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.4"
   url_launcher_web:
     dependency: transitive
     description:
       name: url_launcher_web
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.4"
   url_launcher_windows:
     dependency: transitive
     description:
       name: url_launcher_windows
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.2"
   vector_math:
     dependency: transitive
     description:
       name: vector_math
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.0"
   watcher:
     dependency: transitive
     description:
       name: watcher
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.1"
   web_socket_channel:
     dependency: transitive
     description:
       name: web_socket_channel
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.0"
   webview_flutter:
     dependency: transitive
     description:
       name: webview_flutter
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.2"
   webview_flutter_android:
     dependency: transitive
     description:
       name: webview_flutter_android
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.15"
   webview_flutter_platform_interface:
     dependency: transitive
     description:
       name: webview_flutter_platform_interface
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.2.0"
   webview_flutter_wkwebview:
     dependency: transitive
     description:
       name: webview_flutter_wkwebview
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.14"
   win32:
     dependency: transitive
     description:
       name: win32
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.2.10"
   xdg_directories:
     dependency: transitive
     description:
       name: xdg_directories
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.2.0"
   xml:
     dependency: transitive
     description:
       name: xml
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "5.3.1"
   yaml:
     dependency: transitive
     description:
       name: yaml
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.1.0"
 sdks:
diff --git a/pubspec.yaml b/pubspec.yaml
index 82962dd6f..62cae1e74 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: polkawallet_plugin_kusama
 description: The kusama/polkadot network flutter plugin for polkawallet app.
-version: 0.3.4
+version: 0.3.5
 homepage:
 
 environment:
@@ -18,8 +18,8 @@ dependencies:
   flutter_svg: ^0.23.0+1
   get_storage: ^2.0.3
   json_annotation: ^4.0.1
-  polkawallet_sdk: ^0.3.5
-  polkawallet_ui: ^0.3.4
+  polkawallet_sdk: ^0.3.6
+  polkawallet_ui: ^0.3.5
 
 dev_dependencies:
   build_runner: ^2.1.2