diff --git a/CHANGELOG.md b/CHANGELOG.md
index e087f8a..1dfbe02 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,35 @@
 # CHANGELOG
 
 
+## v0.4.0 (2025-08-06)
+
+### Documentation
+
+- Update readme ([#25](https://github.com/Monadical-SAS/cubbi/pull/25),
+  [`9dc1158`](https://github.com/Monadical-SAS/cubbi/commit/9dc11582a21371a069d407390308340a87358a9f))
+
+doc: update readme
+
+### Features
+
+- Add user port support ([#26](https://github.com/Monadical-SAS/cubbi/pull/26),
+  [`75c9849`](https://github.com/Monadical-SAS/cubbi/commit/75c9849315aebb41ffbd5ac942c7eb3c4a151663))
+
+* feat: add user port support
+
+* fix: fix unit test and improve isolation
+
+* refactor: remove some fixture
+
+- Make opencode beautiful by default ([#24](https://github.com/Monadical-SAS/cubbi/pull/24),
+  [`b8ecad6`](https://github.com/Monadical-SAS/cubbi/commit/b8ecad6227f6a328517edfc442cd9bcf4d3361dc))
+
+opencode: try having compatible default theme
+
+- Support for crush ([#23](https://github.com/Monadical-SAS/cubbi/pull/23),
+  [`472f030`](https://github.com/Monadical-SAS/cubbi/commit/472f030924e58973dea0a41188950540550c125d))
+
+
 ## v0.3.0 (2025-07-31)
 
 ### Bug Fixes
diff --git a/pyproject.toml b/pyproject.toml
index 38b653a..fe2925d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "cubbi"
-version = "0.3.0"
+version = "0.4.0"
 description = "Cubbi Container Tool"
 readme = "README.md"
 requires-python = ">=3.12"
diff --git a/uv.lock b/uv.lock
index f59673b..275900a 100644
--- a/uv.lock
+++ b/uv.lock
@@ -78,7 +78,7 @@ wheels = [
 
 [[package]]
 name = "cubbi"
-version = "0.3.0"
+version = "0.4.0"
 source = { editable = "." }
 dependencies = [
     { name = "docker" },