diff --git a/Dockerfile b/Dockerfile
index be2121b..b7503ef 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -16,6 +16,7 @@ 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
+ENV FLASK_ENV=development
 
 # Starten mit Gunicorn für Production
 CMD ["python", "app.py"]
diff --git a/app.py b/app.py
index 8fe6f29..068ebcd 100644
--- a/app.py
+++ b/app.py
@@ -80,4 +80,4 @@ def index():
     return render_template('index.html', user=user)
 
 if __name__ == "__main__":
-    app.run(debug=True)
+    app.run(host="0.0.0.0", port=5000, debug=True)