diff --git a/requirements.txt b/requirements.txt
index 1a47cef..9d19feb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ click==6.7
 Flask==0.12.2
 Flask-SocketIO==2.9.3
 itsdangerous==0.24
-Jinja2==2.10
+Jinja2==2.11.3
 MarkupSafe==1.0
 python-engineio==2.0.2
 python-socketio==1.8.4