diff --git a/requirements.txt b/requirements.txt
index 77404e7..0c63964 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -27,7 +27,7 @@ itsdangerous==0.24
 Jinja2>=2.10.1
 jsonschema==2.6.0
 jupyter-core==4.4.0
-Mako==1.0.7
+Mako==1.2.2
 MarkupSafe==1.0
 nbformat==4.4.0
 numpy==1.15.2