diff --git a/frontend/mobile-app/lib/core/updater/channels/self_hosted_updater.dart b/frontend/mobile-app/lib/core/updater/channels/self_hosted_updater.dart
index fcf77086..dc2ffa24 100644
--- a/frontend/mobile-app/lib/core/updater/channels/self_hosted_updater.dart
+++ b/frontend/mobile-app/lib/core/updater/channels/self_hosted_updater.dart
@@ -51,9 +51,9 @@ class SelfHostedUpdater {
   void _showMarketUpdateDialog(BuildContext context, VersionInfo versionInfo) {
     showDialog(
       context: context,
-      barrierDismissible: !versionInfo.forceUpdate,
+      barrierDismissible: false,
       builder: (context) => PopScope(
-        canPop: !versionInfo.forceUpdate,
+        canPop: false,
         child: AlertDialog(
           title: Text(
             versionInfo.forceUpdate ? '发现重要更新' : '发现新版本',
@@ -144,9 +144,9 @@ class SelfHostedUpdater {
       BuildContext context, VersionInfo versionInfo) {
     showDialog(
       context: context,
-      barrierDismissible: !versionInfo.forceUpdate,
+      barrierDismissible: false,
       builder: (context) => PopScope(
-        canPop: !versionInfo.forceUpdate,
+        canPop: false,
         child: AlertDialog(
           title: Text(
             versionInfo.forceUpdate ? '发现重要更新' : '发现新版本',
diff --git a/frontend/mobile-app/lib/core/updater/update_service.dart b/frontend/mobile-app/lib/core/updater/update_service.dart
index 09df23e2..185e8e83 100644
--- a/frontend/mobile-app/lib/core/updater/update_service.dart
+++ b/frontend/mobile-app/lib/core/updater/update_service.dart
@@ -110,48 +110,52 @@ class UpdateService {
 
     await showDialog(
       context: context,
-      builder: (context) => AlertDialog(
-        title: Text(
-          '发现新版本',
-          style: TextStyle(
-            fontSize: 18.sp,
-            fontWeight: FontWeight.w600,
-            color: const Color(0xFF292524),
+      barrierDismissible: false,
+      builder: (context) => PopScope(
+        canPop: false,
+        child: AlertDialog(
+          title: Text(
+            '发现新版本',
+            style: TextStyle(
+              fontSize: 18.sp,
+              fontWeight: FontWeight.w600,
+              color: const Color(0xFF292524),
+            ),
           ),
-        ),
-        content: Text(
-          '有新版本可用，是否立即更新？',
-          style: TextStyle(
-            fontSize: 14.sp,
-            color: const Color(0xFF57534E),
+          content: Text(
+            '有新版本可用，是否立即更新？',
+            style: TextStyle(
+              fontSize: 14.sp,
+              color: const Color(0xFF57534E),
+            ),
           ),
-        ),
-        actions: [
-          TextButton(
-            onPressed: () => Navigator.pop(context),
-            child: Text(
-              '稍后',
-              style: TextStyle(
-                fontSize: 14.sp,
-                color: const Color(0xFF78716C),
+          actions: [
+            TextButton(
+              onPressed: () => Navigator.pop(context),
+              child: Text(
+                '稍后',
+                style: TextStyle(
+                  fontSize: 14.sp,
+                  color: const Color(0xFF78716C),
+                ),
               ),
             ),
-          ),
-          ElevatedButton(
-            onPressed: () {
-              Navigator.pop(context);
-              GooglePlayUpdater.performFlexibleUpdate();
-            },
-            style: ElevatedButton.styleFrom(
-              backgroundColor: const Color(0xFFD4A84B),
-              foregroundColor: Colors.white,
+            ElevatedButton(
+              onPressed: () {
+                Navigator.pop(context);
+                GooglePlayUpdater.performFlexibleUpdate();
+              },
+              style: ElevatedButton.styleFrom(
+                backgroundColor: const Color(0xFFD4A84B),
+                foregroundColor: Colors.white,
+              ),
+              child: Text(
+                '更新',
+                style: TextStyle(fontSize: 14.sp),
+              ),
             ),
-            child: Text(
-              '更新',
-              style: TextStyle(fontSize: 14.sp),
-            ),
-          ),
-        ],
+          ],
+        ),
       ),
     );
   }