diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3b235452..26871ac6 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]
 
+## [2.65.6] - 2025-12-28
+
 - Update `dprint@latest` to 0.51.0.
 
 - Update `vacuum@latest` to 0.22.0.
@@ -5207,7 +5209,8 @@ Note: This release is considered a breaking change because installing on version
 
 Initial release
 
-[Unreleased]: https://github.com/taiki-e/install-action/compare/v2.65.5...HEAD
+[Unreleased]: https://github.com/taiki-e/install-action/compare/v2.65.6...HEAD
+[2.65.6]: https://github.com/taiki-e/install-action/compare/v2.65.5...v2.65.6
 [2.65.5]: https://github.com/taiki-e/install-action/compare/v2.65.4...v2.65.5
 [2.65.4]: https://github.com/taiki-e/install-action/compare/v2.65.3...v2.65.4
 [2.65.3]: https://github.com/taiki-e/install-action/compare/v2.65.2...v2.65.3