diff --git a/cover/requirements.txt b/cover/requirements.txt
index 1a01ec3..2d98b95 100644
--- a/cover/requirements.txt
+++ b/cover/requirements.txt
@@ -33,7 +33,7 @@ ipython==7.0.1
 ipython-genutils==0.2.0
 ipywidgets==7.4.2
 jedi==0.13.1
-Jinja2==2.10
+Jinja2==2.11.3
 jsonschema==2.6.0
 jupyter==1.0.0
 jupyter-client==5.2.3