diff --git a/lib/providers/my_wallets.dart b/lib/providers/my_wallets.dart
index 169dfb6..c058ec4 100644
--- a/lib/providers/my_wallets.dart
+++ b/lib/providers/my_wallets.dart
@@ -149,11 +149,14 @@ class MyWalletsProvider with ChangeNotifier {
     notifyListeners();
   }
 
+  int lockPin = 0;
   Future resetPinCode([int minutes = 15]) async {
+    lockPin++;
+    final actualLock = lockPin;
     await Future.delayed(
         Duration(seconds: configBox.get('isCacheChecked') ? minutes * 60 : 1));
-    log.i('reset pin code ...');
-    pinCode = '';
+    log.i('reset pin code, lock $actualLock ...');
+    if (actualLock == lockPin) pinCode = '';
   }
 
   void rebuildWidget() {
diff --git a/pubspec.lock b/pubspec.lock
index 588d418..374a0c2 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -253,13 +253,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.2.0"
-  cron:
-    dependency: "direct main"
-    description:
-      name: cron
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.5.0"
   cross_file:
     dependency: transitive
     description:
diff --git a/pubspec.yaml b/pubspec.yaml
index c9130f5..eaa3fdc 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -81,7 +81,6 @@ dependencies:
       ref: fixAndroidActivityVersion
   dots_indicator: ^2.1.0
   web_socket_channel: ^2.2.0
-  cron: ^0.5.0
 
 dev_dependencies:
   # flutter_launcher_icons: ^0.9.2