diff --git a/src/frontend/src/App.tsx b/src/frontend/src/App.tsx
index 55c8778..9c07d23 100644
--- a/src/frontend/src/App.tsx
+++ b/src/frontend/src/App.tsx
@@ -34,7 +34,7 @@ export default function App() {
   const selectedProjectId = useStore((s) => s.selectedProjectId);
   const setSelectedProjectId = useStore((s) => s.setSelectedProjectId);
   const v2tasksLoading = useStore((s) => s.v2tasksLoading);
-  const mailUnread = useStore((s) => s.mailUnread);
+  const notifUnread = ((useStore((s) => s.sseEvents) || []) as any[]).filter((n: any) => !n.read).length;
 
   useEffect(() => {
     startPolling();
@@ -79,7 +79,7 @@ export default function App() {
       return executing + '活跃';
     }
     if (key === 'mail') {
-      const unread = useStore.getState().mailUnread;
+      const unread = ((useStore.getState().sseEvents || []) as any[]).filter((n: any) => !n.read).length;
       return unread > 0 ? String(unread) : '';
     }
     return '';