diff --git a/app/requirements.txt b/app/requirements.txt
index e057829..f0c9875 100644
--- a/app/requirements.txt
+++ b/app/requirements.txt
@@ -25,7 +25,7 @@ inflection==0.3.1
 itsdangerous==1.1.0
 Jinja2==2.10
 jsonschema==2.6.0
-Mako==1.0.7
+Mako==1.2.2
 MarkupSafe==1.1.0
 more-itertools==4.3.0
 openapi-spec-validator==0.2.4