diff --git a/dev_server/requirements.txt b/dev_server/requirements.txt
index 0b26095..94a8817 100644
--- a/dev_server/requirements.txt
+++ b/dev_server/requirements.txt
@@ -18,7 +18,7 @@ ipython==7.8.0
 ipython-genutils==0.2.0
 ipywidgets==7.5.1
 jedi==0.15.1
-Jinja2==2.10.3
+Jinja2==2.11.3
 joblib==0.14.0
 json5==0.8.5
 jsonschema==3.1.1