diff --git a/CHANGELOG.md b/CHANGELOG.md
index dff5a2ba..cf92eb12 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]
 
+## [1.3.8] - 2022-05-12
+
 - Update `shfmt@latest` to 3.5.0.
 
 ## [1.3.7] - 2022-05-12
@@ -118,7 +120,8 @@ 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/v1.3.7...HEAD
+[Unreleased]: https://github.com/taiki-e/install-action/compare/v1.3.8...HEAD
+[1.3.8]: https://github.com/taiki-e/install-action/compare/v1.3.7...v1.3.8
 [1.3.7]: https://github.com/taiki-e/install-action/compare/v1.3.6...v1.3.7
 [1.3.6]: https://github.com/taiki-e/install-action/compare/v1.3.5...v1.3.6
 [1.3.5]: https://github.com/taiki-e/install-action/compare/v1.3.4...v1.3.5