diff --git a/CHANGELOG.md b/CHANGELOG.md
index ed64ee2..eb72391 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]
 
+## [1.4.0]
+
 ### Added
 
 * `config` option
@@ -39,7 +41,8 @@ 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/v1.3.0...HEAD
+[Unreleased]: https://github.com/shimataro/ssh-key-action/compare/v1.4.0...HEAD
+[1.4.0]: https://github.com/shimataro/ssh-key-action/compare/v1.3.0...v1.4.0
 [1.3.0]: https://github.com/shimataro/ssh-key-action/compare/v1.2.0...v1.3.0
 [1.2.0]: https://github.com/shimataro/ssh-key-action/compare/v1.1.0...v1.2.0
 [1.1.0]: https://github.com/shimataro/ssh-key-action/compare/v1.0.0...v1.1.0