diff --git a/tests/metagpt/utils/test_serialize.py b/tests/metagpt/utils/test_serialize.py
index 3f566d64d..ffa34866c 100644
--- a/tests/metagpt/utils/test_serialize.py
+++ b/tests/metagpt/utils/test_serialize.py
@@ -2,8 +2,6 @@
 # -*- coding: utf-8 -*-
 """
 @Desc   : the unittest of serialize
-@Modified By: mashenquan, 2023-11-1. According to Chapter 2.2.1 and 2.2.2 of RFC 116, change the data type of
-        the `cause_by` value in the `Message` to a string to support the new message distribution feature.
 """
 
 from typing import List, Tuple