diff --git a/setup.cfg b/setup.cfg
index 6b14f10bd..cce097015 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -31,6 +31,7 @@ install_requires =
     sentry-sdk>=0.10.2
     # migrator deps
     cds-dojson==0.9.0
+    flask-mail==0.9.1
     lxml>=4.6.5
     # Version 2.1.0 of Flask requires celery>=5.2.0 and this drops support for python 3.6
     Flask<2.3.0