diff --git a/CHANGELOG.md b/CHANGELOG.md
index cbe5d94f..77521992 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,8 @@ Note: In this file, do not use the hard wrap in the middle of a sentence for com
 
 ## [Unreleased]
 
+## [2.42.9] - 2024-07-26
+
 - Update `cargo-semver-checks@latest` to 0.33.0.
 
 - Update `cargo-deny@latest` to 0.15.1.
@@ -2526,7 +2528,8 @@ Note: This release is considered a breaking change because installing on version
 
 Initial release
 
-[Unreleased]: https://github.com/taiki-e/install-action/compare/v2.42.8...HEAD
+[Unreleased]: https://github.com/taiki-e/install-action/compare/v2.42.9...HEAD
+[2.42.9]: https://github.com/taiki-e/install-action/compare/v2.42.8...v2.42.9
 [2.42.8]: https://github.com/taiki-e/install-action/compare/v2.42.7...v2.42.8
 [2.42.7]: https://github.com/taiki-e/install-action/compare/v2.42.6...v2.42.7
 [2.42.6]: https://github.com/taiki-e/install-action/compare/v2.42.5...v2.42.6