diff --git a/src/digest.c b/src/digest.c
index 45da51b8..5f73b99c 100644
--- a/src/digest.c
+++ b/src/digest.c
@@ -1,5 +1,5 @@
 /*
- *  Copyright 2014-2022 The GmSSL Project. All Rights Reserved.
+ *  Copyright 2014-2023 The GmSSL Project. All Rights Reserved.
  *
  *  Licensed under the Apache License, Version 2.0 (the License); you may
  *  not use this file except in compliance with the License.