diff --git a/requirements.txt b/requirements.txt
index 9588319..137f620 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,7 +24,7 @@ ipykernel==4.10.1
 ipython==5.9.0
 ipython-genutils==0.2.0
 ipywidgets==7.5.1
-Jinja2==2.11.1
+Jinja2==2.11.3
 jsonschema==3.2.0
 jupyter==1.0.0
 jupyter-client==5.3.4