diff --git a/CHANGELOG.md b/CHANGELOG.md
index ff054737..cdf43a69 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]
 
+## [2.65.9] - 2025-12-30
+
 - Update `cargo-llvm-cov@latest` to 0.6.22.
 
 ## [2.65.8] - 2025-12-30
@@ -5231,7 +5233,8 @@ Note: This release is considered a breaking change because installing on version
 
 Initial release
 
-[Unreleased]: https://github.com/taiki-e/install-action/compare/v2.65.8...HEAD
+[Unreleased]: https://github.com/taiki-e/install-action/compare/v2.65.9...HEAD
+[2.65.9]: https://github.com/taiki-e/install-action/compare/v2.65.8...v2.65.9
 [2.65.8]: https://github.com/taiki-e/install-action/compare/v2.65.7...v2.65.8
 [2.65.7]: https://github.com/taiki-e/install-action/compare/v2.65.6...v2.65.7
 [2.65.6]: https://github.com/taiki-e/install-action/compare/v2.65.5...v2.65.6