diff --git a/ios/Runner.xcodeproj/project.pbxproj b/ios/Runner.xcodeproj/project.pbxproj
index 1d19ede6..60e9b55d 100644
--- a/ios/Runner.xcodeproj/project.pbxproj
+++ b/ios/Runner.xcodeproj/project.pbxproj
@@ -383,7 +383,7 @@
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ENABLE_MODULES = YES;
 				CODE_SIGN_ENTITLEMENTS = Runner/Runner.entitlements;
-				CURRENT_PROJECT_VERSION = 1;
+				CURRENT_PROJECT_VERSION = 2;
 				DEVELOPMENT_TEAM = WQ5H736A22;
 				ENABLE_BITCODE = NO;
 				FRAMEWORK_SEARCH_PATHS = (
@@ -518,7 +518,7 @@
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ENABLE_MODULES = YES;
 				CODE_SIGN_ENTITLEMENTS = Runner/Runner.entitlements;
-				CURRENT_PROJECT_VERSION = 1;
+				CURRENT_PROJECT_VERSION = 2;
 				DEVELOPMENT_TEAM = WQ5H736A22;
 				ENABLE_BITCODE = NO;
 				FRAMEWORK_SEARCH_PATHS = (
@@ -548,7 +548,7 @@
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ENABLE_MODULES = YES;
 				CODE_SIGN_ENTITLEMENTS = Runner/Runner.entitlements;
-				CURRENT_PROJECT_VERSION = 1;
+				CURRENT_PROJECT_VERSION = 2;
 				DEVELOPMENT_TEAM = WQ5H736A22;
 				ENABLE_BITCODE = NO;
 				FRAMEWORK_SEARCH_PATHS = (
diff --git a/lib/app.dart b/lib/app.dart
index c0f1a3ba..5e183208 100644
--- a/lib/app.dart
+++ b/lib/app.dart
@@ -309,7 +309,7 @@ class _WalletAppState extends State<WalletApp> {
               RemoteNodeListPage(_appStore.settings),
           SS58PrefixListPage.route: (_) =>
               SS58PrefixListPage(_appStore.settings),
-          AboutPage.route: (_) => AboutPage(),
+          AboutPage.route: (_) => AboutPage(_appStore),
           RecoverySettingPage.route: (_) => RecoverySettingPage(_appStore),
           RecoveryStatePage.route: (_) => RecoveryStatePage(_appStore),
           RecoveryProofPage.route: (_) => RecoveryProofPage(_appStore),
diff --git a/lib/common/consts/settings.dart b/lib/common/consts/settings.dart
index bdb85629..17a51175 100644
--- a/lib/common/consts/settings.dart
+++ b/lib/common/consts/settings.dart
@@ -141,8 +141,8 @@ const String cross_chain_transfer_address_laminar =
     '5CLaminarAUSDCrossChainTransferxxxxxxxxxxxxxwisu';
 
 /// app versions
-const String app_beta_version = 'v1.0.5-beta.1';
-const int app_beta_version_code = 1051;
+const String app_beta_version = 'v1.0.5-beta.2';
+const int app_beta_version_code = 1052;
 
 /// js code versions
 const Map<String, int> js_code_version_map = {
diff --git a/lib/page/profile/aboutPage.dart b/lib/page/profile/aboutPage.dart
index 47de6e82..6a2ddc9b 100644
--- a/lib/page/profile/aboutPage.dart
+++ b/lib/page/profile/aboutPage.dart
@@ -3,11 +3,17 @@ import 'package:flutter/material.dart';
 import 'package:polka_wallet/common/components/JumpToBrowserLink.dart';
 import 'package:polka_wallet/common/components/roundedButton.dart';
 import 'package:polka_wallet/common/consts/settings.dart';
+import 'package:polka_wallet/service/substrateApi/api.dart';
 import 'package:polka_wallet/service/walletApi.dart';
+import 'package:polka_wallet/store/app.dart';
 import 'package:polka_wallet/utils/UI.dart';
 import 'package:polka_wallet/utils/i18n/index.dart';
 
 class AboutPage extends StatefulWidget {
+  AboutPage(this.store);
+
+  final AppStore store;
+
   static final String route = '/profile/about';
 
   @override
@@ -31,6 +37,10 @@ class _AboutPage extends State<AboutPage> {
   @override
   Widget build(BuildContext context) {
     final Map dic = I18n.of(context).profile;
+    final currentJSVersion = WalletApi.getPolkadotJSVersion(
+      webApi.jsStorage,
+      widget.store.settings.endpoint.info,
+    );
     return Scaffold(
       backgroundColor: Theme.of(context).cardColor,
       appBar: AppBar(
@@ -64,6 +74,10 @@ class _AboutPage extends State<AboutPage> {
               padding: EdgeInsets.all(8),
               child: Text('${dic['about.version']}: $app_beta_version'),
             ),
+            Padding(
+              padding: EdgeInsets.only(bottom: 8),
+              child: Text('API: $currentJSVersion'),
+            ),
             Padding(
               padding: EdgeInsets.all(16),
               child: RoundedButton(
diff --git a/lib/service/substrateApi/api.dart b/lib/service/substrateApi/api.dart
index 085ea343..a163ccc7 100644
--- a/lib/service/substrateApi/api.dart
+++ b/lib/service/substrateApi/api.dart
@@ -74,6 +74,8 @@ class Api {
     // check js code update
     final network = store.settings.endpoint.info;
     final jsVersions = await WalletApi.fetchPolkadotJSVersion();
+    if (jsVersions == null) return;
+
     final version = jsVersions[network];
     final versionMin = jsVersions['$network-min'];
     final bool needUpdate =
diff --git a/lib/service/walletApi.dart b/lib/service/walletApi.dart
index 23093e79..760a40e1 100644
--- a/lib/service/walletApi.dart
+++ b/lib/service/walletApi.dart
@@ -70,12 +70,15 @@ class WalletApi {
     GetStorage jsStorage,
     String networkName,
   ) {
-    String version = jsStorage.read('$_jsCodeStorageVersionKey$networkName');
+    final int appJSVersion = js_code_version_map[networkName];
+    final String version =
+        jsStorage.read('$_jsCodeStorageVersionKey$networkName');
     if (version != null) {
-      return int.parse(version);
+      final updatedVersion = int.parse(version);
+      return updatedVersion > appJSVersion ? updatedVersion : appJSVersion;
     }
     // default version
-    return js_code_version_map[networkName];
+    return appJSVersion;
   }
 
   static String getPolkadotJSCode(
diff --git a/pubspec.yaml b/pubspec.yaml
index 47ab8429..75a24757 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -11,7 +11,7 @@ description: PolkaWallet made with Flutter.
 # In iOS, build-name is used as CFBundleShortVersionString while build-number used as CFBundleVersion.
 # Read more about iOS versioning at
 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
-version: 1.0.5+1051
+version: 1.0.5+1052
 
 environment:
   sdk: ">=2.7.0 <3.0.0"