diff --git a/CHANGELOG.md b/CHANGELOG.md
index 05e9ea57..40911c1b 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]
 
+## [2.81.1] - 2026-05-31
+
 - Update `cargo-no-dev-deps@latest` to 0.2.24.
 
 - Update `cargo-hack@latest` to 0.6.45.
@@ -6722,7 +6724,8 @@ Note: This release is considered a breaking change because installing on version
 
 Initial release
 
-[Unreleased]: https://github.com/taiki-e/install-action/compare/v2.81.0...HEAD
+[Unreleased]: https://github.com/taiki-e/install-action/compare/v2.81.1...HEAD
+[2.81.1]: https://github.com/taiki-e/install-action/compare/v2.81.0...v2.81.1
 [2.81.0]: https://github.com/taiki-e/install-action/compare/v2.80.0...v2.81.0
 [2.80.0]: https://github.com/taiki-e/install-action/compare/v2.79.15...v2.80.0
 [2.79.15]: https://github.com/taiki-e/install-action/compare/v2.79.14...v2.79.15