diff --git a/requirements.txt b/requirements.txt
index 9c71812..a898b3b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,7 +17,7 @@ Jinja2==2.8
 language-selector==0.1
 louis==2.6.4
 lxml==3.5.0
-Mako==1.0.3
+Mako==1.2.2
 MarkupSafe==0.23
 numpy==1.15.2
 oauthlib==1.0.3