diff --git a/src/app/api/auth/refresh/route.js b/src/app/api/auth/refresh/route.js
index d325b4b..f65cb85 100644
--- a/src/app/api/auth/refresh/route.js
+++ b/src/app/api/auth/refresh/route.js
@@ -5,6 +5,7 @@ const API_BASE_URL = 'https://gdgocinha.site/auth'; // 프록시 대상 주소
 
 export async function POST(req) {
   const targetUrl = `${API_BASE_URL}/refresh`;
+  const isProd = process.env.NODE_ENV === 'production';
 
   try {
     const cookies = req.headers.get('cookie') || '';
@@ -33,8 +34,8 @@ export async function POST(req) {
         nextResponse.cookies.set(name, value, {
           path: '/',
           httpOnly: true,
-          secure: process.env.NODE_ENV === 'production',
-          sameSite: 'strict',
+          secure: isProd,
+          sameSite: isProd ? 'none' : 'lax',
         });
       });
     }
diff --git a/src/app/api/signin/route.js b/src/app/api/signin/route.js
index 0431d4d..de80c8e 100644
--- a/src/app/api/signin/route.js
+++ b/src/app/api/signin/route.js
@@ -7,6 +7,7 @@ export async function POST(request) {
   try {
     // 클라이언트로부터 받은 요청 데이터 추출
     const { email, password } = await request.json();
+    const isProd = process.env.NODE_ENV === 'production';
 
     // gdgocinha.site/auth/login으로 요청 전달
     const response = await axios.post(
@@ -30,18 +31,18 @@ export async function POST(request) {
     // 원본 응답의 쿠키가 있으면 추출하여 현재 도메인에 설정
     const cookies = response.headers['set-cookie'];
     if (cookies) {
-      cookies.forEach(cookie => {
+      cookies.forEach((cookie) => {
         // 쿠키 문자열에서 이름과 값 부분만 추출
         const cookieParts = cookie.split(';')[0].split('=');
         const cookieName = cookieParts[0];
         const cookieValue = cookieParts.slice(1).join('=');
-        
+
         // 추출한 쿠키를 현재 도메인에 설정
         nextResponse.cookies.set(cookieName, cookieValue, {
           path: '/',
           httpOnly: true,
-          secure: process.env.NODE_ENV === 'production',
-          sameSite: 'strict',
+          secure: isProd,
+          sameSite: isProd ? 'none' : 'lax',
         });
       });
     }
diff --git a/src/app/study/create/page.jsx b/src/app/study/create/page.jsx
index 806f4dc..28be6b3 100644
--- a/src/app/study/create/page.jsx
+++ b/src/app/study/create/page.jsx
@@ -91,8 +91,6 @@ export default function CreateStudy() {
                 imagePath: getS3Key
             };
 
-            console.log(updateFormData);
-
             await apiClient.post('/study', updateFormData);
 
             alert("스터디 개설이 완료되었습니다!");