diff --git a/README.md b/README.md
index 38912a95..c068821f 100644
--- a/README.md
+++ b/README.md
@@ -109,4 +109,4 @@ Bugs, questions, suggestions, anything related or not, feel free to contact me w
 
 MIT, see [License](https://github.com/q191201771/lal/blob/master/LICENSE).
 
-this note updated by yoko, 202303
+this note updated by yoko, 202311
diff --git a/pkg/base/basic_session_stat_test.go b/pkg/base/basic_session_stat_test.go
index cbeb0626..5c9d4891 100644
--- a/pkg/base/basic_session_stat_test.go
+++ b/pkg/base/basic_session_stat_test.go
@@ -1,3 +1,11 @@
+// Copyright 2023, Chef.  All rights reserved.
+// https://github.com/q191201771/lal
+//
+// Use of this source code is governed by a MIT-style license
+// that can be found in the License file.
+//
+// Author: Chef (191201771@qq.com)
+
 package base
 
 import (
diff --git a/pkg/mpegts/crc32_test.go b/pkg/mpegts/crc32_test.go
index a1dc3a78..67f89911 100644
--- a/pkg/mpegts/crc32_test.go
+++ b/pkg/mpegts/crc32_test.go
@@ -1,3 +1,11 @@
+// Copyright 2023, Chef.  All rights reserved.
+// https://github.com/q191201771/lal
+//
+// Use of this source code is governed by a MIT-style license
+// that can be found in the License file.
+//
+// Author: Chef (191201771@qq.com)
+
 package mpegts
 
 import (
diff --git a/pkg/rtmp/handshake.go b/pkg/rtmp/handshake.go
index 82e54af6..8835d93d 100644
--- a/pkg/rtmp/handshake.go
+++ b/pkg/rtmp/handshake.go
@@ -262,7 +262,7 @@ func findDigest(b []byte, base int, key []byte) int {
 	digest := make([]byte, keyLen)
 	makeDigestWithoutCenterPart(b, offs, key, digest)
 	// compare origin digest in buffer with calced digest
-	if bytes.Equal(digest, b[offs : offs+keyLen]) {
+	if bytes.Equal(digest, b[offs:offs+keyLen]) {
 		return offs
 	}
 	return -1