diff --git a/README.md b/README.md
index 69b5298..4ec693c 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,6 @@ Client functionality library
 
 ## License
 
-Copyright (c) Kiseki 2023. All rights reserved. Not for public use.
+Copyright (c) Kiseki 2022-2023. All rights reserved. Not for public use.
 
 Kiseki.Patcher is adapted from [@lrre-foss/lure](https://github.com/lrre-foss/lure), a project licensed under the [Apache License 2.0](https://github.com/lrre-foss/lure/blob/trunk/LICENSE).