diff --git a/requirements.txt b/requirements.txt
index 96de3de..b4e414b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ Flask-Testing==0.7.1
 gunicorn==19.7.1
 idna==2.6
 itsdangerous==0.24
-Jinja2==2.10
+Jinja2==2.11.3
 jsonschema==2.6.0
 MarkupSafe==1.0
 pytz==2018.3