diff --git a/CHANGELOG.md b/CHANGELOG.md
index 80fcf2ad..7fc00906 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]
 
+## [2.33.8] - 2024-04-24
+
 - Update `cargo-spellcheck@latest` to 0.14.0.
 
 ## [2.33.7] - 2024-04-23
@@ -2105,7 +2107,8 @@ Note: This release is considered a breaking change because installing on version
 
 Initial release
 
-[Unreleased]: https://github.com/taiki-e/install-action/compare/v2.33.7...HEAD
+[Unreleased]: https://github.com/taiki-e/install-action/compare/v2.33.8...HEAD
+[2.33.8]: https://github.com/taiki-e/install-action/compare/v2.33.7...v2.33.8
 [2.33.7]: https://github.com/taiki-e/install-action/compare/v2.33.6...v2.33.7
 [2.33.6]: https://github.com/taiki-e/install-action/compare/v2.33.5...v2.33.6
 [2.33.5]: https://github.com/taiki-e/install-action/compare/v2.33.4...v2.33.5