diff --git a/dev-requirements.txt b/dev-requirements.txt
index 967cea2..2d9b730 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -51,7 +51,7 @@ language-selector==0.1
 linecache2==1.0.0
 louis==2.6.4
 lxml==3.5.0
-Mako==1.0.3
+Mako==1.2.2
 MarkupSafe==0.23
 mccabe==0.6.1
 monotonic==1.5