diff --git a/lib/app_upgrade_simple.dart b/lib/app_upgrade_simple.dart
index a7cf3c0..f49ca61 100644
--- a/lib/app_upgrade_simple.dart
+++ b/lib/app_upgrade_simple.dart
@@ -1,9 +1,9 @@
 import 'dart:async';
 import 'dart:io';
 
-import 'package:yx_app_upgrade_flutter/core/upgrade_utils.dart';
 import 'package:flutter/material.dart';
 import 'package:url_launcher/url_launcher.dart';
+import 'package:yx_app_upgrade_flutter/core/upgrade_utils.dart';
 
 import 'app_upgrade_plugin_platform_interface.dart';
 import 'core/permission_helper.dart';