diff --git a/requirements.txt b/requirements.txt
index a4b6f43..de83231 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -86,7 +86,7 @@ llvmlite==0.20.0
 locket==0.2.0
 lockfile==0.12.2
 lxml==4.1.0
-Mako==1.0.7
+Mako==1.2.2
 MarkupSafe==1.0
 matplotlib==2.1.0
 mccabe==0.6.1