diff --git a/Lab 3/demo/requirements.txt b/Lab 3/demo/requirements.txt
index 0efd65fb6c..e1201fbdc9 100644
--- a/Lab 3/demo/requirements.txt	
+++ b/Lab 3/demo/requirements.txt	
@@ -10,7 +10,7 @@ bidict==0.21.2
 click==7.1.2
 dnspython==1.16.0
 eventlet==0.31.0
-Flask==1.1.2
+Flask==3.1.3
 Flask-SocketIO==5.0.1
 gevent==21.1.2
 gevent-websocket==0.10.1