diff --git a/requirements.txt b/requirements.txt
index ee9be7c..e16c4b6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -44,7 +44,7 @@ itsdangerous==0.24
 Jinja2==2.10.1
 lazy-object-proxy==1.4.3
 limits==1.3
-Mako==1.0.7
+Mako==1.2.4
 MarkupSafe==1.0
 mccabe==0.6.1
 mypy-extensions==0.4.3