diff --git a/src/paperless_mail/mail.py b/src/paperless_mail/mail.py
index fae770b74..355ad4b63 100644
--- a/src/paperless_mail/mail.py
+++ b/src/paperless_mail/mail.py
@@ -302,7 +302,7 @@ def error_callback(
 
 def queue_consumption_tasks(
     *,
-    consume_tasks: list[Signature],
+    consume_tasks: List[Signature],
     rule: MailRule,
     message: MailMessage,
 ):