diff --git a/requirements.txt b/requirements.txt
index 83cd329..04312b9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -31,7 +31,7 @@ idna==2.9
 itsdangerous==1.1.0
 jdcal==1.4.1
 Jinja2==2.11.2
-Mako==1.1.2
+Mako==1.2.2
 MarkupSafe==1.1.1
 marshmallow==3.5.1
 marshmallow-sqlalchemy==0.22.3