diff --git a/src/main.tsx b/src/main.tsx
index 5cf59cb8..ef2936b2 100644
--- a/src/main.tsx
+++ b/src/main.tsx
@@ -2,7 +2,6 @@ import React from 'react';
 import ReactDOM from 'react-dom/client';
 import '@/globals.css';
 import MainRouter from '@routes/MainRouter.tsx';
-import { CookiesProvider } from 'react-cookie';
 
 async function enableMocking() {
   if (!import.meta.env.DEV) return;
@@ -14,9 +13,7 @@ async function enableMocking() {
 enableMocking().then(() => {
   ReactDOM.createRoot(document.getElementById('root')!).render(
     <React.StrictMode>
-      <CookiesProvider>
-        <MainRouter />
-      </CookiesProvider>
+      <MainRouter />
     </React.StrictMode>,
   );
 });
diff --git a/src/mocks/services/authServiceHandler.ts b/src/mocks/services/authServiceHandler.ts
index f0e2c887..f93ff272 100644
--- a/src/mocks/services/authServiceHandler.ts
+++ b/src/mocks/services/authServiceHandler.ts
@@ -25,6 +25,23 @@ const authServiceHandler = [
     }
     return new HttpResponse(JSON.stringify({ message: '아이디 또는 비밀번호가 잘못되었습니다.' }), { status: 400 });
   }),
+  // refresh token 갱신 API
+  http.post(`${BASE_URL}/user/login/refresh`, async ({ cookies }) => {
+    const { refreshToken } = cookies;
+
+    if (refreshToken === 'mockedRefreshToken') {
+      const newAccessToken = 'newMockedAccessToken';
+
+      return new HttpResponse(null, {
+        status: 200,
+        headers: {
+          Authorization: `Bearer ${newAccessToken}`,
+          'Set-Cookie': `refreshToken=${refreshToken}`,
+        },
+      });
+    }
+    return new HttpResponse(JSON.stringify({ message: '리프레시 토큰이 유효하지 않습니다.' }), { status: 400 });
+  }),
 ];
 
 export default authServiceHandler;