diff --git a/requirements.txt b/requirements.txt
index 3049795..371da11 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ functools32==3.2.3.post2
 gunicorn==19.7.1
 idna==2.6
 itsdangerous==0.24
-Jinja2==2.9.6
+Jinja2==2.11.3
 MarkupSafe==1.0
 matplotlib==2.0.2
 numpy==1.13.1