diff --git a/CHANGELOG.md b/CHANGELOG.md
index d929ce6..f75cbc1 100644
--- a/CHANGELOG.md
+++ b/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] - 
+## [4.0.0] - 2021-10-27
 ### Changed
 - WebGL library is built with Emscripten 2.0.19 now
 - Minimum required version is Unity 2021.2
diff --git a/package.json b/package.json
index ce28aca..ebcf775 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "com.atteneder.draco",
-  "version": "4.0.0-preview.3",
+  "version": "4.0.0",
   "displayName": "Draco 3D Data Compression",
   "description": "Draco is an open-source library for compressing and decompressing 3D geometric meshes and point clouds. It is intended to improve the storage and transmission of 3D graphics. This package allows you to apply Draco compression to meshes, import Draco files and load them at runtime.",
   "unity": "2021.2",