diff --git a/LICENSE b/LICENSE
index 5e51669..6c00e23 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,5 @@
 Copyright 2024 skyizwhite
+Copyright 2021 - present, Yusuke Wada and Hono contributors
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 
diff --git a/README.md b/README.md
index b1c2efa..81b1402 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,8 @@
 
 Middleware collection for [Lack](https://github.com/fukamachi/lack).
 
+These middlewares were ported from [Hono](https://github.com/honojs/hono).
+
 ## Middlewares
 
 - **trailing-slash**  
@@ -17,4 +19,6 @@ Middleware collection for [Lack](https://github.com/fukamachi/lack).
 
 Licensed under the MIT License.
 
-© 2024 skyizwhite
\ No newline at end of file
+© 2024 skyizwhite
+
+© 2021 - present, Yusuke Wada and Hono contributors
\ No newline at end of file