diff --git a/web/demo/bff/requirements.txt b/web/demo/bff/requirements.txt
index 4cfa320..86e1489 100644
--- a/web/demo/bff/requirements.txt
+++ b/web/demo/bff/requirements.txt
@@ -7,7 +7,7 @@ Flask==2.2.5
 Flask-Cors==3.0.9
 Flask-RESTful==0.3.8
 Flask-SocketIO==4.3.1
-gevent==20.6.2
+gevent==23.9.1
 gevent-websocket==0.10.1
 greenlet==0.4.16
 gunicorn==20.0.4