diff --git a/CHANGELOG.md b/CHANGELOG.md
index 64af62d..f27fc71 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,7 +3,7 @@ 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/)
 
-## Unreleased
+## [0.4.0] - 2024-04-06
 
 Fix compilation warnings
 
diff --git a/mix.exs b/mix.exs
index a014c67..5792ee0 100644
--- a/mix.exs
+++ b/mix.exs
@@ -2,7 +2,7 @@ defmodule ExSync.Mixfile do
   use Mix.Project
 
   @source_url "https://github.com/falood/exsync"
-  @version "0.3.0"
+  @version "0.4.0"
 
   def project do
     [