diff --git a/CHANGELOG.md b/CHANGELOG.md
index 50941a2..eb02c2c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,7 +5,7 @@ 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]
+## [4.0.0] - 2024-08-30
 
 ### Added
 
diff --git a/pubspec.yaml b/pubspec.yaml
index b6a8227..6a819ce 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: json_cache
 description: An object-oriented package for caching user data locally in json; a combinable layer on top of local storage packages that unifies them.
-version: 3.0.2
+version: 4.0.0
 homepage: https://dartoos.dev
 repository: https://github.com/dartoos-dev/json_cache