diff --git a/requirements.txt b/requirements.txt
index 65c4282..eb17acb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,7 +25,7 @@ itsdangerous==1.1.0
 Jinja2==2.11.3
 jsonschema==3.0.1
 jupyter-core==4.4.0
-Mako==1.1.0
+Mako==1.2.2
 MarkupSafe==1.1.1
 nbformat==4.4.0
 numpy==1.16.3