diff --git a/version_3/requirements.txt b/version_3/requirements.txt
index ccb6c29..6e1e34b 100644
--- a/version_3/requirements.txt
+++ b/version_3/requirements.txt
@@ -28,7 +28,7 @@ Jinja2==2.9.6
 jsonschema==2.6.0
 jws==0.1.3
 kiwisolver==1.1.0
-Mako==1.0.7
+Mako==1.2.2
 MarkupSafe==1.0
 matplotlib==3.1.1
 nose==1.3.7