diff --git a/requirements.txt b/requirements.txt
index 6a99fca..04b00a8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ Flask==0.12.1
 future==0.16.0
 gunicorn==19.7.1
 itsdangerous==0.24
-Jinja2==2.9.6
+Jinja2==2.11.3
 MarkupSafe==1.0
 numpy==1.12.1
 packaging==16.8