diff --git a/requirements.txt b/requirements.txt
index 25ffffb..f33d57e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ flask-swagger-ui==3.20.9
 gunicorn==19.9.0
 idna==2.8
 itsdangerous==1.1.0
-Jinja2==2.10.3
+Jinja2==2.11.3
 MarkupSafe==1.1.1
 num2words==0.5.10
 Pint==0.9