diff --git a/requirements.txt b/requirements.txt
index 1ec89bd..8055ea6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -42,7 +42,7 @@ jsonschema==3.0.2
 jupyter-core==4.5.0
 kappa==0.6.0
 lxml==4.4.1
-Mako==1.1.0
+Mako==1.2.2
 MarkupSafe==1.1.1
 mccabe==0.6.1
 more-itertools==8.4.0