diff --git a/CHANGELOG.md b/CHANGELOG.md
index d98c7dba..a13d6b0b 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]
 
+## [1.8.4] - 2022-08-01
+
 - Update `cargo-llvm-cov@latest` to 0.4.13.
 
 ## [1.8.3] - 2022-07-30
@@ -249,7 +251,8 @@ Note: In this file, do not use the hard wrap in the middle of a sentence for com
 
 Initial release
 
-[Unreleased]: https://github.com/taiki-e/install-action/compare/v1.8.3...HEAD
+[Unreleased]: https://github.com/taiki-e/install-action/compare/v1.8.4...HEAD
+[1.8.4]: https://github.com/taiki-e/install-action/compare/v1.8.3...v1.8.4
 [1.8.3]: https://github.com/taiki-e/install-action/compare/v1.8.2...v1.8.3
 [1.8.2]: https://github.com/taiki-e/install-action/compare/v1.8.1...v1.8.2
 [1.8.1]: https://github.com/taiki-e/install-action/compare/v1.8.0...v1.8.1