diff --git a/backend/.env.sample b/backend/.env.sample
index 600349a..f3a4fe4 100644
--- a/backend/.env.sample
+++ b/backend/.env.sample
@@ -2,21 +2,24 @@
 ENVIRONMENT=development
 DEBUG=True
 
-# Django Core
-DJANGO_SETTINGS_MODULE=config.settings
-DJANGO_SECRET_KEY=
-DJANGO_ALLOWED_HOSTS=api.qlockify.ir,qlockify.ir,www.qlockify.ir
+# Django Core
+DJANGO_SETTINGS_MODULE=config.settings
+DJANGO_SECRET_KEY=
+DJANGO_ALLOWED_HOSTS=api.qlockify.ir,qlockify.ir,www.qlockify.ir
 
 # Database
 POSTGRES_DB=app_db
 POSTGRES_USER=app_user
 POSTGRES_PASSWORD=app_password
-POSTGRES_HOST=db
+POSTGRES_HOST=db
 POSTGRES_PORT=5432
 
-# CORS / CSRF
-CORS_ALLOWED_ORIGINS=https://qlockify.ir,https://www.qlockify.ir
-CSRF_TRUSTED_ORIGINS=https://api.qlockify.ir,https://qlockify.ir,https://www.qlockify.ir
+# CORS / CSRF
+CORS_ALLOWED_ORIGINS=https://qlockify.ir,https://www.qlockify.ir
+CSRF_TRUSTED_ORIGINS=https://api.qlockify.ir,https://qlockify.ir,https://www.qlockify.ir
+
+DJANGO_CORS_ALLOWED_ORIGINS=https://qlockify.ir,https://www.qlockify.ir
+DJANGO_CSRF_TRUSTED_ORIGINS=https://api.qlockify.ir,https://qlockify.ir,https://www.qlockify.ir
 
 # JWT
 ACCESS_TOKEN_LIFETIME=5
@@ -30,15 +33,19 @@ JWT_ALGORITHM=HS256
 
 # Redis / Celery
 REDIS_URL=redis://redis:6379/0
-REDIS_HOST=redis
+REDIS_HOST=redis
 REDIS_PORT=6379
 REDIS_PASSWORD=
-CELERY_BROKER_URL=redis://redis:6379/0
-CELERY_RESULT_BACKEND=redis://redis:6379/0
+CELERY_BROKER_URL=redis://redis:6379/0
+CELERY_RESULT_BACKEND=redis://redis:6379/0
 
 # Timzone / Language
 LANGUAGE_CODE=en-us
 TIME_ZONE=Asia/Tehran
 
-SMS_APIKEY=
-BASE_URL=https://api.qlockify.ir
+SMS_APIKEY=
+BASE_URL=https://api.qlockify.ir
+GOOGLE_OAUTH_CLIENT_ID=
+GOOGLE_OAUTH_CLIENT_SECRET=
+GOOGLE_OAUTH_REDIRECT_URI=https://qlockify.ir/api/users/oauth/google/callback/
+GOOGLE_OAUTH_FRONTEND_CALLBACK_URL=https://qlockify.ir/auth/google/callback