diff --git a/requirements.txt b/requirements.txt
index 0ab9fc4..aad944b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,7 +24,7 @@ idna==2.6
 itsdangerous==0.24
 Jinja2==2.10
 jmespath==0.9.3
-Mako==1.0.7
+Mako==1.2.2
 MarkupSafe==1.0
 matplotlib==2.1.2
 numpy==1.14.0