diff --git a/requirements.txt b/requirements.txt
index 6a09721..b80dad0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,7 +17,7 @@ ipython-genutils==0.2.0
 ipywidgets==7.1.2
 jdcal==1.4
 jedi==0.11.1
-Jinja2==2.10
+Jinja2==2.11.3
 jsonschema==2.6.0
 jupyter==1.0.0
 jupyter-client==5.2.2