diff --git a/web/backend/flask/requirements.txt b/web/backend/flask/requirements.txt
index 6aee249..dc77d2f 100644
--- a/web/backend/flask/requirements.txt
+++ b/web/backend/flask/requirements.txt
@@ -1,6 +1,6 @@
 click==6.7
 Flask==0.12.2
 itsdangerous==0.24
-Jinja2==2.9.6
+Jinja2==2.11.3
 MarkupSafe==1.0
 Werkzeug==0.12.2