diff --git a/requirements.txt b/requirements.txt
index e45e584..b439b7d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,7 +11,7 @@ gevent==1.3.7
 greenlet==0.4.15
 idna==2.7
 itsdangerous==0.24
-Jinja2==2.10
+Jinja2==2.11.3
 MarkupSafe==1.0
 python-engineio==2.3.2
 python-socketio==2.0.0