diff --git a/requirements.txt b/requirements.txt
index fd8e3a1..9fb29d6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,7 +14,7 @@ inflection==0.3.1
 itsdangerous==1.1.0
 Jinja2>=2.10.1
 jsonschema==2.6.0
-Mako==1.0.7
+Mako==1.2.2
 Markdown==2.4.1
 MarkupSafe==1.0
 openapi-spec-validator==0.2.4