diff --git a/requirements.txt b/requirements.txt
index 770633d..3f752ab 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,7 +16,7 @@ gunicorn==19.9.0
 idna==2.8
 itsdangerous==1.1.0
 Jinja2==2.10.1
-Mako==1.0.9
+Mako==1.2.2
 MarkupSafe==1.1.1
 monotonic==1.5
 pycparser==2.19