diff --git a/README.md b/README.md
index b9c352e..13c1b21 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-[![GitHub license](https://img.shields.io/github/license/smdn/Smdn.Net.EchonetLite)](https://github.com/smdn/Smdn.Net.EchonetLite/blob/main/COPYING.txt)
+[![GitHub license](https://img.shields.io/github/license/smdn/Smdn.Net.EchonetLite)](https://github.com/smdn/Smdn.Net.EchonetLite/blob/main/LICENSE.txt)
 [![tests/main](https://img.shields.io/github/actions/workflow/status/smdn/Smdn.Net.EchonetLite/test.yml?branch=main&label=tests%2Fmain)](https://github.com/smdn/Smdn.Net.EchonetLite/actions/workflows/test.yml)
 [![CodeQL](https://github.com/smdn/Smdn.Net.EchonetLite/actions/workflows/codeql-analysis.yml/badge.svg?branch=main)](https://github.com/smdn/Smdn.Net.EchonetLite/actions/workflows/codeql-analysis.yml)