diff --git a/requirements.txt b/requirements.txt
index b9abc2c..bc728cc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -57,7 +57,7 @@ lazy-object-proxy==1.3.1
 libclang-py3==3.4.0
 louis==3.0.0
 lxml==3.7.3
-Mako==1.0.6
+Mako==1.2.2
 mando==0.3.3
 MarkupSafe==1.0
 mccabe==0.6.1