diff --git a/backend/src/main/java/com/tcu/projectpulse/auth/controller/AuthController.java b/backend/src/main/java/com/tcu/projectpulse/auth/controller/AuthController.java
index ea1c71c..81486f3 100644
--- a/backend/src/main/java/com/tcu/projectpulse/auth/controller/AuthController.java
+++ b/backend/src/main/java/com/tcu/projectpulse/auth/controller/AuthController.java
@@ -20,7 +20,6 @@
 
 @RestController
 @RequestMapping("/api/auth")
-@CrossOrigin(origins = "http://localhost:5173")
 public class AuthController {
 
     private final StudentService studentService;
diff --git a/backend/src/main/resources/application-prod.yaml b/backend/src/main/resources/application-prod.yaml
index 3ba1828..6d7b50b 100644
--- a/backend/src/main/resources/application-prod.yaml
+++ b/backend/src/main/resources/application-prod.yaml
@@ -15,6 +15,11 @@ spring:
 
 server:
   port: 8080
+  servlet:
+    session:
+      cookie:
+        same-site: none
+        secure: true
 
 app:
   frontend-base-url: ${APP_FRONTEND_BASE_URL}