diff --git a/requirements.txt b/requirements.txt
index 4d5b8e2..a626f1d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -38,7 +38,7 @@ itsdangerous==1.1.0
 Jinja2==2.10.3
 jsonschema==3.2.0
 kombu==4.6.6
-Mako==1.1.0
+Mako==1.2.2
 Markdown==3.1.1
 MarkupSafe==1.1.1
 marshmallow==2.19.5