diff --git a/Assets/lilToon/CHANGELOG.md b/Assets/lilToon/CHANGELOG.md
index 38112a34..b252fa9a 100644
--- a/Assets/lilToon/CHANGELOG.md
+++ b/Assets/lilToon/CHANGELOG.md
@@ -4,7 +4,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [Unreleased]
+## [1.4.0] - 2023-05-12
 ### Added
 - Mask by vertex id
 - Dither
diff --git a/Assets/lilToon/CHANGELOG_JP.md b/Assets/lilToon/CHANGELOG_JP.md
index 6fa57a5d..13f674d9 100644
--- a/Assets/lilToon/CHANGELOG_JP.md
+++ b/Assets/lilToon/CHANGELOG_JP.md
@@ -4,7 +4,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [Unreleased]
+## [1.4.0] - 2023-05-12
 ### 追加
 - 頂点IDによるマスクを追加
 - Ditherを追加