diff --git a/web-app-flask/requirements.txt b/web-app-flask/requirements.txt
index cfe1523..b61e72b 100644
--- a/web-app-flask/requirements.txt
+++ b/web-app-flask/requirements.txt
@@ -16,7 +16,7 @@ gunicorn==20.0.4
 httplib2==0.18.1
 idna==2.9
 itsdangerous==1.1.0
-Jinja2==2.11.2
+Jinja2==2.11.3
 MarkupSafe==1.1.1
 oauth2client==4.1.3
 oauthlib==3.1.0