diff --git a/files/requirements-celery-email.txt b/files/requirements-celery-email.txt
index ba64cd4b..ebe919eb 100644
--- a/files/requirements-celery-email.txt
+++ b/files/requirements-celery-email.txt
@@ -1 +1 @@
-django-celery-email-reboot>=4.1.0,<5.0.0
+django-celery-email-reboot>=4.0.0,<5.0.0