diff --git a/requirements.txt b/requirements.txt
index f8c5890..5d47f99 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,7 +14,7 @@ Flask-WTF==0.14.2
 gunicorn==19.9.0
 itsdangerous==1.1.0
 Jinja2==2.10.1
-Mako==1.1.0
+Mako==1.2.2
 MarkupSafe==1.1.1
 psycopg2==2.8.3
 pycparser==2.19