diff --git a/dev_requirements.txt b/dev_requirements.txt
index 23557dc..1b104ab 100644
--- a/dev_requirements.txt
+++ b/dev_requirements.txt
@@ -95,7 +95,7 @@ jsonschema==3.2.0
     #   dynamicannotationdb
     #   emannotationschemas
     #   flask-restx
-mako==1.1.6
+mako==1.2.2
     # via alembic
 markupsafe==2.0.1
     # via