diff --git a/flask/requirements.txt b/flask/requirements.txt
index b34194d..754524f 100644
--- a/flask/requirements.txt
+++ b/flask/requirements.txt
@@ -3,7 +3,7 @@ Click==7.0
 Flask==1.1.1
 Flask-RESTful==0.3.7
 itsdangerous==1.1.0
-Jinja2==2.10.1
+Jinja2==2.11.3
 MarkupSafe==1.1.1
 pkg-resources==0.0.0
 pytz==2019.2