diff --git a/README.md b/README.md
index bc5b7ea..372a27e 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,9 @@ A tool to quickly start developing with kintone
 ⓘ This tool has been migrated from git://github.com/kintone/kintone-cli
 ```
 
+> [!WARNING]
+> The maintenance of kintone CLI will end on 31 December 2024. For more details, please refer to [this announcement](https://github.com/kintone-labs/kintone-cli/issues/206).
+
 ## Installation
 ```
 npm install -g https://github.com/kintone-labs/kintone-cli.git