diff --git a/tools/make_lmdb.py b/tools/make_lmdb.py
index cf891f9..2b1ce38 100644
--- a/tools/make_lmdb.py
+++ b/tools/make_lmdb.py
@@ -1,4 +1,4 @@
-# Copyright (c) 2022 Horizon Robotics. (authors: Binbin Zhang)
+# Copyright (c) 2022 Binbin Zhang(binbzha@qq.com)
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/wekws/dataset/lmdb_data.py b/wekws/dataset/lmdb_data.py
index 640604d..7c5757c 100644
--- a/wekws/dataset/lmdb_data.py
+++ b/wekws/dataset/lmdb_data.py
@@ -1,4 +1,4 @@
-# Copyright (c) 2022 Horizon Robotics. (authors: Binbin Zhang)
+# Copyright (c) 2022 Binbin Zhang(binbzha@qq.com)
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.