diff --git a/requirements.txt b/requirements.txt
index 5f637d9..071896c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -46,7 +46,7 @@ jmespath==0.9.3
 Keras==2.1.5
 lazy-object-proxy==1.3.1
 m2r==0.1.14
-Mako==1.0.6
+Mako==1.2.2
 Markdown==2.6.9
 MarkupSafe==1.0
 mccabe==0.6.1