diff --git a/requirements.txt b/requirements.txt
index 4b4bd50..cca8544 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,7 +11,7 @@ Flask-WTF==0.14.2
 gunicorn==19.9.0
 itsdangerous==1.1.0
 Jinja2==2.10.1
-Mako==1.0.10
+Mako==1.0.11
 MarkupSafe==1.1.1
 mccabe==0.6.1
 pycodestyle==2.5.0