diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1be0a7c..ec5af0b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## [v0.4.0](https://github.com/k1LoW/exec/compare/v0.3.0...v0.4.0) - 2025-08-14
+### New Features 🎉
+- feat: add Type alias `ExitError` by @k1LoW in https://github.com/k1LoW/exec/pull/7
+### Other Changes
+- chore(deps): bump actions/checkout from 4 to 5 in the dependencies group by @dependabot[bot] in https://github.com/k1LoW/exec/pull/9
+
 ## [v0.3.0](https://github.com/k1LoW/exec/compare/v0.2.0...v0.3.0) (2024-05-30)
 
 * Support cmd.Cancel [#6](https://github.com/k1LoW/exec/pull/6) ([k1LoW](https://github.com/k1LoW))