diff --git a/requirements.txt b/requirements.txt
index 04e9709..ead89ab 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -71,7 +71,7 @@ llvmlite==0.29.0
 louis==2.6.4
 lxml==3.5.0
 Magic-file-extensions==0.2
-Mako==1.0.3
+Mako==1.2.2
 Markdown==3.1
 MarkupSafe==0.23
 matplotlib==3.0.2