diff --git a/requirements.txt b/requirements.txt
index c2c5ea4..c2c8652 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,7 +15,7 @@ gunicorn==19.9.0
 icalendar==4.0.2
 idna==2.8
 itypes==1.1.0
-Jinja2==2.10.1
+Jinja2==2.11.3
 MarkupSafe==1.1.1
 mypy==0.641
 mypy-extensions==0.4.1