diff --git a/requirements.txt b/requirements.txt
index c2b609f..6f7ec15 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ gevent==1.2.2
 gevent-websocket==0.10.1
 greenlet==0.4.13
 itsdangerous==0.24
-Jinja2==2.10
+Jinja2==2.11.3
 MarkupSafe==1.0
 msgpack==0.5.6
 numpy==1.14.2