diff --git a/requirements.txt b/requirements.txt
index fbb0f61..a76f6b6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -18,7 +18,7 @@ Flask-WTF==0.14.2
 eventlet==0.22.1
 idna==2.6
 itsdangerous==0.24
-Jinja2==2.10
+Jinja2==2.11.3
 MarkupSafe==1.0
 mccabe==0.6.1
 pluggy==0.6.0