diff --git a/Flask/SocketIO/example/requirements.txt b/Flask/SocketIO/example/requirements.txt
index 421b91b..6a20c71 100644
--- a/Flask/SocketIO/example/requirements.txt
+++ b/Flask/SocketIO/example/requirements.txt
@@ -3,7 +3,7 @@ Flask-Login==0.4.1
 Flask-Session==0.3.1
 Flask_SocketIO
 itsdangerous==1.1.0
-Jinja2==2.10
+Jinja2==2.11.3
 MarkupSafe==1.1.0
 python-engineio
 python-socketio