diff --git a/backend b/backend
index 69c05d73..77df7427 160000
--- a/backend
+++ b/backend
@@ -1 +1 @@
-Subproject commit 69c05d73f9007f97a3778e00e1080c21f1904de7
+Subproject commit 77df74279c6fa56d8e58c370485e9e87cb865265
diff --git a/src/components/notification-center/index.ts b/src/components/notification-center/index.ts
index 265ba432..40ae2f04 100644
--- a/src/components/notification-center/index.ts
+++ b/src/components/notification-center/index.ts
@@ -51,7 +51,7 @@ export const useNotificationCenter = (): {
       removeNotification(id);
 
       delete notificationIds[id];
-    }, notification.visibilityTime ?? 400000);
+    }, notification.visibilityTime ?? 4000);
 
     return id;
   };