diff --git a/CHANGELOG.md b/CHANGELOG.md
index fc7a025..9b535bd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [4.0.5]
+### Fixed
+- Add missing configuration for non-default Slack channel messages ([#83](https://github.com/MetaMask/action-npm-publish/pull/83))
+
 ## [4.0.4]
 ### Fixed
 - Fix action validation error ([#77](https://github.com/MetaMask/action-npm-publish/pull/77))
@@ -88,7 +92,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 - Initial release ([#1](https://github.com/MetaMask/action-npm-publish/pull/1))
 
-[Unreleased]: https://github.com/MetaMask/action-npm-publish/compare/v4.0.4...HEAD
+[Unreleased]: https://github.com/MetaMask/action-npm-publish/compare/v4.0.5...HEAD
+[4.0.5]: https://github.com/MetaMask/action-npm-publish/compare/v4.0.4...v4.0.5
 [4.0.4]: https://github.com/MetaMask/action-npm-publish/compare/v4.0.3...v4.0.4
 [4.0.3]: https://github.com/MetaMask/action-npm-publish/compare/v4.0.2...v4.0.3
 [4.0.2]: https://github.com/MetaMask/action-npm-publish/compare/v4.0.1...v4.0.2
diff --git a/package.json b/package.json
index fb32c79..5ff02e6 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     "url": "https://github.com/MetaMask/action-npm-publish/issues"
   },
   "homepage": "https://github.com/MetaMask/action-npm-publish#readme",
-  "version": "4.0.4",
+  "version": "4.0.5",
   "main": "index.js",
   "directories": {
     "test": "test"