diff --git a/requirements.txt b/requirements.txt
index 9153f57..64d67e3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ gunicorn==19.7.1
 idna==2.6
 ipaddress==1.0.18
 itsdangerous==0.24
-Jinja2==2.9.6
+Jinja2==2.11.3
 MarkupSafe==1.0
 numpy==1.13.3
 post==0.0.0