diff --git a/iOS/server/requirements.txt b/iOS/server/requirements.txt
index 65f0208..a144e48 100644
--- a/iOS/server/requirements.txt
+++ b/iOS/server/requirements.txt
@@ -3,5 +3,5 @@ gunicorn==19.7.1
 itsdangerous==0.24
 psycopg2==2.7.3.2
 Flask==1.0.2
-Jinja2==2.10
+Jinja2==2.11.3
 Werkzeug==0.14.1