diff --git a/chatmaild/src/chatmaild/tests/test_filtermail.py b/chatmaild/src/chatmaild/tests/test_filtermail.py
index dc52950f..989378c4 100644
--- a/chatmaild/src/chatmaild/tests/test_filtermail.py
+++ b/chatmaild/src/chatmaild/tests/test_filtermail.py
@@ -5,8 +5,8 @@
     SendRateLimiter,
     check_armored_payload,
     check_encrypted,
-    is_securejoin,
     common_encrypted_subjects,
+    is_securejoin,
 )