diff --git a/lib/app_upgrade_simple.dart b/lib/app_upgrade_simple.dart
index bb06e89..8054cdf 100644
--- a/lib/app_upgrade_simple.dart
+++ b/lib/app_upgrade_simple.dart
@@ -1,6 +1,5 @@
 import 'dart:io';
 
-import 'package:app_upgrade_plugin/widgets/market_selection_dialog.dart';
 import 'package:flutter/material.dart';
 import 'package:fluttertoast/fluttertoast.dart';
 
@@ -413,6 +412,8 @@ mixin _UpgradeDialogLogic<T extends StatefulWidget> on State<T> {
       context: context,
       isScrollControlled: false,
       useRootNavigator: true,
+      isDismissible: !info.isForceUpdate, // 强制更新时不允许通过手势关闭
+      enableDrag: !info.isForceUpdate, // 强制更新时不允许拖拽关闭
       // UI Beautification: Rounded corners
       shape: const RoundedRectangleBorder(
         borderRadius: BorderRadius.vertical(top: Radius.circular(20)),
@@ -434,20 +435,21 @@ mixin _UpgradeDialogLogic<T extends StatefulWidget> on State<T> {
                     borderRadius: BorderRadius.circular(2),
                   ),
                 ),
-                // Title and Close Button
+                // Title and Close Button - 强制更新时不显示关闭按钮
                 Padding(
                   padding: const EdgeInsets.only(bottom: 8.0),
                   child: Stack(
                     alignment: Alignment.center,
                     children: [
                       const Text('选择更新方式', style: TextStyle(fontSize: 18, fontWeight: FontWeight.bold)),
-                      Positioned(
-                        right: -12,
-                        child: IconButton(
-                          icon: const Icon(Icons.close),
-                          onPressed: () => Navigator.of(ctx).pop(),
+                      if (!info.isForceUpdate)
+                        Positioned(
+                          right: -12,
+                          child: IconButton(
+                            icon: const Icon(Icons.close),
+                            onPressed: () => Navigator.of(ctx).pop(),
+                          ),
                         ),
-                      ),
                     ],
                   ),
                 ),
@@ -470,25 +472,26 @@ mixin _UpgradeDialogLogic<T extends StatefulWidget> on State<T> {
 
                 const Divider(height: 24),
 
-                // Cancel Button
-                SizedBox(
-                  width: double.infinity,
-                  child: ElevatedButton(
-                    style: ElevatedButton.styleFrom(
-                      padding: const EdgeInsets.symmetric(vertical: 12),
-                      backgroundColor: Colors.white,
-                      foregroundColor: Theme.of(context).textTheme.bodyLarge?.color,
-                      elevation: 2,
-                      shadowColor: Colors.grey.withOpacity(0.5),
-                      shape: RoundedRectangleBorder(
-                        borderRadius: BorderRadius.circular(12),
-                        side: BorderSide(color: Colors.grey.shade300),
+                // Cancel Button - 强制更新时不显示取消按钮
+                if (!info.isForceUpdate)
+                  SizedBox(
+                    width: double.infinity,
+                    child: ElevatedButton(
+                      style: ElevatedButton.styleFrom(
+                        padding: const EdgeInsets.symmetric(vertical: 12),
+                        backgroundColor: Colors.white,
+                        foregroundColor: Theme.of(context).textTheme.bodyLarge?.color,
+                        elevation: 2,
+                        shadowColor: Colors.grey.withOpacity(0.5),
+                        shape: RoundedRectangleBorder(
+                          borderRadius: BorderRadius.circular(12),
+                          side: BorderSide(color: Colors.grey.shade300),
+                        ),
                       ),
+                      onPressed: () => Navigator.of(ctx).pop(),
+                      child: const Text('取消', style: TextStyle(fontSize: 16, fontWeight: FontWeight.w500)),
                     ),
-                    onPressed: () => Navigator.of(ctx).pop(),
-                    child: const Text('取消', style: TextStyle(fontSize: 16, fontWeight: FontWeight.w500)),
                   ),
-                ),
               ],
             ),
           ),