diff --git a/backend/main.py b/backend/main.py
index e30919f..279ef07 100644
--- a/backend/main.py
+++ b/backend/main.py
@@ -20,10 +20,18 @@ models.Base.metadata.create_all(bind=engine)
 
 app = FastAPI(title="Wedding Guest List API")
 
+# Get allowed origins from environment
+FRONTEND_URL = os.getenv("FRONTEND_URL", "http://localhost:5173")
+allowed_origins = [FRONTEND_URL]
+
+# Add localhost for development if not already there
+if "localhost" not in FRONTEND_URL:
+    allowed_origins.append("http://localhost:5173")
+
 # Configure CORS
 app.add_middleware(
     CORSMiddleware,
-    allow_origins=["http://localhost:5173"],  # Vite default port
+    allow_origins=allowed_origins,
     allow_credentials=True,
     allow_methods=["*"],
     allow_headers=["*"],