diff --git a/CHANGELOG.md b/CHANGELOG.md
index 12fd956e..23bd5778 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]
 
+## [2.87.3] - 2026-09-01
+
 - Update `zizmor@latest` to 1.30.0.
 
 - Update `ubi@latest` to 0.12.0.
@@ -7424,7 +7426,8 @@ Note: This release is considered a breaking change because installing on version
 
 Initial release
 
-[Unreleased]: https://github.com/taiki-e/install-action/compare/v2.87.2...HEAD
+[Unreleased]: https://github.com/taiki-e/install-action/compare/v2.87.3...HEAD
+[2.87.3]: https://github.com/taiki-e/install-action/compare/v2.87.2...v2.87.3
 [2.87.2]: https://github.com/taiki-e/install-action/compare/v2.87.1...v2.87.2
 [2.87.1]: https://github.com/taiki-e/install-action/compare/v2.87.0...v2.87.1
 [2.87.0]: https://github.com/taiki-e/install-action/compare/v2.86.8...v2.87.0