diff --git a/CHANGELOG.md b/CHANGELOG.md
index e051a70a..ee4f8fc4 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]
 
+## [2.55.0] - 2025-06-30
+
 - Support `vacuum`. ([#1016](https://github.com/taiki-e/install-action/pull/1016), thanks @jayvdb)
 
 - Update `cargo-shear@latest` to 1.3.2.
@@ -4036,7 +4038,8 @@ Note: This release is considered a breaking change because installing on version
 
 Initial release
 
-[Unreleased]: https://github.com/taiki-e/install-action/compare/v2.54.3...HEAD
+[Unreleased]: https://github.com/taiki-e/install-action/compare/v2.55.0...HEAD
+[2.55.0]: https://github.com/taiki-e/install-action/compare/v2.54.3...v2.55.0
 [2.54.3]: https://github.com/taiki-e/install-action/compare/v2.54.2...v2.54.3
 [2.54.2]: https://github.com/taiki-e/install-action/compare/v2.54.1...v2.54.2
 [2.54.1]: https://github.com/taiki-e/install-action/compare/v2.54.0...v2.54.1