diff --git a/requirements.txt b/requirements.txt
index 6a4a08e..31bc523 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ enum34==1.1.6
 Flask==0.12.2
 idna==2.5
 itsdangerous==0.24
-Jinja2==2.9.6
+Jinja2==2.11.3
 MarkupSafe==1.0
 numpy==1.13.0
 packaging==16.8