diff --git a/Mailnag/backends/imap.py b/Mailnag/backends/imap.py
index e9d9a3f..91ecd66 100644
--- a/Mailnag/backends/imap.py
+++ b/Mailnag/backends/imap.py
@@ -25,7 +25,6 @@
 
 import email
 import logging
-import threading
 import re
 
 from Mailnag.backends.base import MailboxBackend