diff --git a/flask_app/requirements.txt b/flask_app/requirements.txt
index 0e7452f..f05acd5 100644
--- a/flask_app/requirements.txt
+++ b/flask_app/requirements.txt
@@ -13,7 +13,7 @@ hjson==3.0.1
 httplib2==0.19.0
 idna==2.8
 itsdangerous==1.1.0
-jinja2==2.10.1
+jinja2==2.11.3
 jmespath==0.9.3
 kappa==0.6.0
 lambda-packages==0.20.0