diff --git a/requirements.txt b/requirements.txt
index 79d8057..8baa86c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -37,7 +37,7 @@ jupyter-client==5.3.4
 jupyter-console==6.0.0
 jupyter-core==4.6.1
 kiwisolver==1.1.0
-Mako==1.0.3
+Mako==1.2.2
 MarkupSafe==0.23
 matplotlib==2.2.3
 mistune==0.8.4