diff --git a/CHANGELOG.md b/CHANGELOG.md
index 385d585..fdf73c7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
+## [2.4.0] - 2022-11-03
+
 ### Added
 
 * always set server key of `github.com` to `known_hosts`
@@ -172,7 +174,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 * First release.
 
-[Unreleased]: https://github.com/shimataro/ssh-key-action/compare/v2.3.1...HEAD
+[Unreleased]: https://github.com/shimataro/ssh-key-action/compare/v2.4.0...HEAD
+[2.4.0]: https://github.com/shimataro/ssh-key-action/compare/v2.3.1...v2.4.0
 [2.3.1]: https://github.com/shimataro/ssh-key-action/compare/v2.3.0...v2.3.1
 [2.3.0]: https://github.com/shimataro/ssh-key-action/compare/v2.2.0...v2.3.0
 [2.2.0]: https://github.com/shimataro/ssh-key-action/compare/v2.1.0...v2.2.0
diff --git a/package-lock.json b/package-lock.json
index cc04f21..ee4f36c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "install-ssh-key",
-  "version": "2.3.1",
+  "version": "2.4.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "install-ssh-key",
-      "version": "2.3.1",
+      "version": "2.4.0",
       "license": "MIT",
       "devDependencies": {
         "@actions/core": "1.10.0",
diff --git a/package.json b/package.json
index e5323c3..b1ec6c9 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "install-ssh-key",
-  "version": "2.3.1",
+  "version": "2.4.0",
   "private": true,
   "description": "Install SSH key in .ssh",
   "main": "lib/index.js",