diff --git a/requirements.txt b/requirements.txt
index bfd01fe..dd7e1c9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -47,7 +47,7 @@ jinja2>=2.10.1
 json-merge-patch==0.2
 lockfile==0.12.2
 lxml==4.3.4
-mako==1.0.13
+mako==1.2.2
 markdown==2.6.11
 markupsafe==1.1.1
 numpy==1.16.4