diff --git a/Dockerfile b/Dockerfile
index 010e81d..f7a23c9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -13,10 +13,11 @@
     # Port, den Coolify erwartet
     EXPOSE 5000
     
-    CLIENT_ID = os.environ.get("SPOTIPY_CLIENT_ID")
-    CLIENT_SECRET = os.environ.get("SPOTIPY_CLIENT_SECRET")
-    REDIRECT_URI = os.environ.get("SPOTIPY_REDIRECT_URI")
-    SECRET_KEY = os.environ.get("SECRET_KEY", "dev_secret_key")
+    ENV FLASK_ENV = $FLASK_ENV
+    ENV SECRET_KEY = $SECRET_KEY
+    ENV SPOTIPY_CLIENT_ID = $SPOTIPY_CLIENT_ID
+    ENV SPOTIPY_CLIENT_SECRET = $SPOTIPY_CLIENT_SECRET
+    ENV SPOTIPY_REDIRECT_URI = $SPOTIPY_REDIRECT_URI
 
     # Starten mit Gunicorn für Production
     CMD ["gunicorn", "--bind", "0.0.0.0:5000", "app:app"]