diff --git a/CHANGELOG.md b/CHANGELOG.md
index fb7f42f6..52213b76 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,41 @@
 # Changelog
 
+## [0.4.0](https://github.com/woodpecker-ci/helm/releases/tag/0.4.0) - 2023-10-12
+
+### ❤️ Thanks to all contributors! ❤️
+
+@pat-s, @renovate[bot], @CrimsonFez, @eliasscosta, @ashtonian
+
+### ✨ Features
+
+- add `extraVolumes` and `extraVolumesMounts` to server chart [[#81](https://github.com/woodpecker-ci/helm/pull/81)]
+- chore: enabled metrics with pod-monitor for statefulset [[#77](https://github.com/woodpecker-ci/helm/pull/77)]
+
+### 📚 Documentation
+
+- Align README template with current state [[#91](https://github.com/woodpecker-ci/helm/pull/91)]
+- add documentation for extra volume mounts in agent [[#78](https://github.com/woodpecker-ci/helm/pull/78)]
+- Improve `helm-docs` invocation and clean templates [[#60](https://github.com/woodpecker-ci/helm/pull/60)]
+
+### 📈 Enhancement
+
+- Publish chart to OCI registry (alongside gh-pages) [[#83](https://github.com/woodpecker-ci/helm/pull/83)]
+- fix woodpecker_server to work out of the box [[#75](https://github.com/woodpecker-ci/helm/pull/75)]
+
+### 🐛 Bug Fixes
+
+- Fix missing `image.registry` for agent [[#70](https://github.com/woodpecker-ci/helm/pull/70)]
+
+### Misc
+
+- chore(deps): update jnorwood/helm-docs docker tag to v1.11.3 [[#89](https://github.com/woodpecker-ci/helm/pull/89)]
+- Automerge renovate updates (excluding major ones) [[#92](https://github.com/woodpecker-ci/helm/pull/92)]
+- ignore and remove `index.yaml` [[#80](https://github.com/woodpecker-ci/helm/pull/80)]
+- chore(deps): update jnorwood/helm-docs docker tag to v1.11.2 [[#85](https://github.com/woodpecker-ci/helm/pull/85)]
+- chore(deps): update docker docker tag to v20.10.24 [[#84](https://github.com/woodpecker-ci/helm/pull/84)]
+- Add renovate config and set image versions in workflows [[#82](https://github.com/woodpecker-ci/helm/pull/82)]
+- release-helper: update `appVersion` to latest release [[#76](https://github.com/woodpecker-ci/helm/pull/76)]
+
 ## [0.3.2](https://github.com/woodpecker-ci/helm/releases/tag/0.3.2) - 2023-09-03
 
 ### ❤️ Thanks to all contributors! ❤️
diff --git a/Chart.yaml b/Chart.yaml
index 7618a4b2..353c9823 100644
--- a/Chart.yaml
+++ b/Chart.yaml
@@ -2,8 +2,8 @@ apiVersion: v2
 name: woodpecker
 description: A Helm chart for Woodpecker CI
 type: application
-version: 0.3.2
-appVersion: "v1.0.0"
+version: 0.4.0
+appVersion: 1.0.2
 home: https://woodpecker-ci.org/
 icon: https://avatars.githubusercontent.com/u/84780935?s=200&v=4
 
diff --git a/charts/agent/Chart.yaml b/charts/agent/Chart.yaml
index 2ad0e1e8..e9a1c5a5 100644
--- a/charts/agent/Chart.yaml
+++ b/charts/agent/Chart.yaml
@@ -3,7 +3,7 @@ name: agent
 description: A Helm chart for the Woodpecker agent
 type: application
 version: 0.2.0
-appVersion: v1.0.0
+appVersion: 1.0.2
 home: https://woodpecker-ci.org/
 icon: https://avatars.githubusercontent.com/u/84780935?s=200&v=4
 
diff --git a/charts/server/Chart.yaml b/charts/server/Chart.yaml
index 28b66e46..21fa4c60 100644
--- a/charts/server/Chart.yaml
+++ b/charts/server/Chart.yaml
@@ -3,7 +3,7 @@ name: server
 description: A Helm chart for the Woodpecker server
 type: application
 version: 0.2.0
-appVersion: v1.0.0
+appVersion: 1.0.2
 home: https://woodpecker-ci.org/
 icon: https://avatars.githubusercontent.com/u/84780935?s=200&v=4