diff --git a/requirements.txt b/requirements.txt
index 4f10d6163..45e7a92fb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -156,7 +156,7 @@ marshmallow==3.16.0
     #   marshmallow-sqlalchemy
 marshmallow-sqlalchemy==0.28.0
     # via -r requirements.in
-mistune==0.8.4
+mistune==2.0.2
     # via notifications-utils
 notifications-python-client==6.3.0
     # via -r requirements.in