diff --git a/flask_app/requirements.txt b/flask_app/requirements.txt
index 23abd9df..954e2a95 100644
--- a/flask_app/requirements.txt
+++ b/flask_app/requirements.txt
@@ -12,7 +12,7 @@ grpcio==1.28.1
 gunicorn==20.0.4
 idna==2.9
 itsdangerous==1.1.0
-Jinja2==2.11.2
+Jinja2==2.11.3
 MarkupSafe==1.1.1
 pkg-resources==0.0.0
 protobuf==3.11.3