diff --git a/requirements.txt b/requirements.txt
index f0b6f20..f3f3d03 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ gunicorn==19.9.0
 itsdangerous==1.1.0
 Jinja2==2.10.1
 jsonschema==2.6.0
-Mako==1.0.7
+Mako==1.2.2
 MarkupSafe==1.1.0
 marshmallow==2.18.0
 marshmallow-sqlalchemy==0.15.0