diff --git a/src/ConnectSSE.tsx b/src/ConnectSSE.tsx
index f777c3bf..a4c9baa0 100644
--- a/src/ConnectSSE.tsx
+++ b/src/ConnectSSE.tsx
@@ -1,3 +1,4 @@
+import { useState } from 'react';
 import toast from 'react-hot-toast';
 
 import { QueryClient, useQueryClient } from '@tanstack/react-query';
@@ -14,6 +15,8 @@ import { Alarm, CrewAlarm, GameAlarm } from '@type/models';
 export const ConnectSSE = () => {
   const queryClient = useQueryClient();
   const loginInfo = useLoginInfoStore((state) => state.loginInfo);
+  const [, set] = useState(new Date());
+  const reconnectSSE = () => set(new Date());
 
   useEventSource({
     subscribeUrl: `${import.meta.env.VITE_BASE_URL}/alarms/subscribe`,
@@ -38,7 +41,11 @@ export const ConnectSSE = () => {
         },
       ],
     ],
-    onerror: (error) => console.log(error),
+    onerror: (error) => {
+      if ('status' in error && error.status === 500) {
+        setTimeout(() => reconnectSSE(), 3000);
+      }
+    },
   });
 
   return null;
diff --git a/src/hooks/useEventSource.ts b/src/hooks/useEventSource.ts
index 9c34cda6..600eb878 100644
--- a/src/hooks/useEventSource.ts
+++ b/src/hooks/useEventSource.ts
@@ -2,7 +2,7 @@ import { useEffect } from 'react';
 
 import { EventSourcePolyfill, NativeEventSource } from 'event-source-polyfill';
 
-import { useLoginInfoStore } from '@stores/loginInfo.store';
+import { useTokenStore } from '@stores/accessToken.store';
 
 export const useEventSource = ({
   subscribeUrl,
@@ -17,17 +17,17 @@ export const useEventSource = ({
   onmessage?: EventSourcePolyfill['onmessage'];
   onerror?: EventSourcePolyfill['onerror'];
 }) => {
-  const loginInfo = useLoginInfoStore((state) => state.loginInfo);
+  const accessToken = useTokenStore((state) => state.accessToken);
 
   useEffect(() => {
-    if (!loginInfo?.id) {
+    if (!accessToken) {
       return;
     }
 
     const EventSource = EventSourcePolyfill || NativeEventSource;
     const eventSource = new EventSource(subscribeUrl, {
       headers: {
-        Authorization: `Bearer ${loginInfo.accessToken}`,
+        Authorization: `Bearer ${accessToken}`,
         'Content-type': 'text/event-stream',
       },
       heartbeatTimeout: 1000 * 60 * 60 * 6,
@@ -43,5 +43,5 @@ export const useEventSource = ({
     return () => {
       eventSource.close();
     };
-  }, [loginInfo, onmessage, onerror, subscribeUrl, eventListenerParameters]);
+  }, [accessToken, onmessage, onerror, subscribeUrl, eventListenerParameters]);
 };