diff --git a/license.txt b/license.txt
index 8deeff6746015873672e6692230ec7e2169dc1e4..52d99a66dd955de8c18d5974516eeaefbc81bf84 100644
--- a/license.txt
+++ b/license.txt
@@ -1,4 +1,4 @@
-Copyright 1999-2016 Alibaba Group Holding Ltd.
+Copyright 1999-2018 Alibaba Group Holding Ltd.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.