diff --git a/CHANGELOG.md b/CHANGELOG.md
index a4af7e8..78a0340 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,3 +6,5 @@ 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
+
+## 0.4.0 - 2024-07-16
diff --git a/setup.py b/setup.py
index ba62a16..d70dc62 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@
 
 setup(
     name="apitoolkit-flask",
-    version="0.3.0",
+    version='0.4.0',
     packages=find_packages(),
     description='A Flask SDK for Apitoolkit integration',
     long_description=long_description,