diff --git a/frontend/src/main.tsx b/frontend/src/main.tsx
index c63e1f3..f9cd159 100644
--- a/frontend/src/main.tsx
+++ b/frontend/src/main.tsx
@@ -7,7 +7,7 @@ import ErrorBoundary from './components/ErrorBoundary'
 import { ConfirmProvider } from './hooks/useConfirm'
 import './index.css'
 
-const queryClient = new QueryClient({
+export const queryClient = new QueryClient({
   defaultOptions: {
     queries: {
       staleTime: 1000 * 60 * 5,
diff --git a/frontend/src/store/authStore.ts b/frontend/src/store/authStore.ts
index 2010929..370b9f4 100644
--- a/frontend/src/store/authStore.ts
+++ b/frontend/src/store/authStore.ts
@@ -1,5 +1,6 @@
 import { create } from 'zustand'
 import { persist } from 'zustand/middleware'
+import { queryClient } from '../main'
 
 interface User {
   id: string
@@ -26,11 +27,15 @@ export const useAuthStore = create<AuthState>()(
       accessToken: null,
       refreshToken: null,
       isAuthenticated: false,
-      setAuth: (user, accessToken, refreshToken) =>
-        set({ user, accessToken, refreshToken, isAuthenticated: true }),
+      setAuth: (user, accessToken, refreshToken) => {
+        queryClient.clear()
+        set({ user, accessToken, refreshToken, isAuthenticated: true })
+      },
       updateToken: (accessToken) => set({ accessToken }),
-      logout: () =>
-        set({ user: null, accessToken: null, refreshToken: null, isAuthenticated: false }),
+      logout: () => {
+        queryClient.clear()
+        set({ user: null, accessToken: null, refreshToken: null, isAuthenticated: false })
+      },
     }),
     { name: 'auth-storage' },
   ),