diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9103d30a..266dbe7b 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]
 
+## [2.86.3] - 2026-08-18
+
 - Update `prek@latest` to 0.4.14.
 
 - Update `osv-scanner@latest` to 2.5.1.
@@ -7314,7 +7316,8 @@ Note: This release is considered a breaking change because installing on version
 
 Initial release
 
-[Unreleased]: https://github.com/taiki-e/install-action/compare/v2.86.2...HEAD
+[Unreleased]: https://github.com/taiki-e/install-action/compare/v2.86.3...HEAD
+[2.86.3]: https://github.com/taiki-e/install-action/compare/v2.86.2...v2.86.3
 [2.86.2]: https://github.com/taiki-e/install-action/compare/v2.86.1...v2.86.2
 [2.86.1]: https://github.com/taiki-e/install-action/compare/v2.86.0...v2.86.1
 [2.86.0]: https://github.com/taiki-e/install-action/compare/v2.85.14...v2.86.0