diff --git a/CHANGELOG.md b/CHANGELOG.md
index 31112b0c..cbdf07f8 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]
 
+## [2.19.4] - 2023-10-05
+
 - Update `protoc@latest` to 3.24.4.
 
 ## [2.19.3] - 2023-10-03
@@ -1283,7 +1285,8 @@ Note: This release is considered a breaking change because installing on version
 
 Initial release
 
-[Unreleased]: https://github.com/taiki-e/install-action/compare/v2.19.3...HEAD
+[Unreleased]: https://github.com/taiki-e/install-action/compare/v2.19.4...HEAD
+[2.19.4]: https://github.com/taiki-e/install-action/compare/v2.19.3...v2.19.4
 [2.19.3]: https://github.com/taiki-e/install-action/compare/v2.19.2...v2.19.3
 [2.19.2]: https://github.com/taiki-e/install-action/compare/v2.19.1...v2.19.2
 [2.19.1]: https://github.com/taiki-e/install-action/compare/v2.19.0...v2.19.1