diff --git a/app.py b/app.py
index a0d8cc9..8e7ac20 100644
--- a/app.py
+++ b/app.py
@@ -15,4 +15,4 @@
     parser.add_argument('--port', '-p', type=int, default=5000)
     args = parser.parse_args()
     logging.info(f'Starting dev server at http://0.0.0.0:{args.port}')
-    socketio.run(app, port=args.port, debug=True, threaded=True)
+    socketio.run(app, port=args.port, debug=True)
diff --git a/fgclassifier/visualizer/app.py b/fgclassifier/visualizer/app.py
index f3e0a63..ca296eb 100644
--- a/fgclassifier/visualizer/app.py
+++ b/fgclassifier/visualizer/app.py
@@ -86,4 +86,4 @@ def autoindex(path='.'):
 
 if __name__ == '__main__':
     port = os.environ.get('PORT', 5000)
-    socketio.run(app, host='0.0.0.0', threaded=True, port=port)
+    socketio.run(app, host='0.0.0.0', port=port)