diff --git a/RELEASE.md b/RELEASE.md
index fa937211..d62b7ab1 100644
--- a/RELEASE.md
+++ b/RELEASE.md
@@ -92,7 +92,7 @@ This will prevent the MOCO version from going up just by modifying the Helm Char
 2. Make a new branch from the latest `main` with `git neco dev bump-chart-v$CHARTVERSION`.
 
     ```console
-    $ git neco dev "bump-chart-v$VERSION"
+    $ git neco dev "bump-chart-v$CHARTVERSION"
     ```
 
 3. Update version strings:
diff --git a/charts/moco/CHANGELOG.md b/charts/moco/CHANGELOG.md
index ca8f3da8..93221ad5 100644
--- a/charts/moco/CHANGELOG.md
+++ b/charts/moco/CHANGELOG.md
@@ -5,6 +5,10 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 
+## [0.15.0] - 2024-11-20
+### Changed
+- Bump appVersion to 0.25.0 [#756](https://github.com/cybozu-go/moco/pull/756)
+
 ## [0.14.0] - 2024-09-20
 ### Changed
 - Bump appVersion to 0.24.1 [#742](https://github.com/cybozu-go/moco/pull/742)
@@ -177,7 +181,9 @@ TEST SUITE: None
 
 This is the first release.
 
-[Unreleased]: https://github.com/cybozu-go/moco/compare/chart-v0.13.1...HEAD
+[Unreleased]: https://github.com/cybozu-go/moco/compare/chart-v0.15.0...HEAD
+[0.15.0]: https://github.com/cybozu-go/moco/compare/chart-v0.14.0...chart-v0.15.0
+[0.14.0]: https://github.com/cybozu-go/moco/compare/chart-v0.13.1...chart-v0.14.0
 [0.13.1]: https://github.com/cybozu-go/moco/compare/chart-v0.13.0...chart-v0.13.1
 [0.13.0]: https://github.com/cybozu-go/moco/compare/chart-v0.12.0...chart-v0.13.0
 [0.12.0]: https://github.com/cybozu-go/moco/compare/chart-v0.11.0...chart-v0.12.0
diff --git a/charts/moco/Chart.yaml b/charts/moco/Chart.yaml
index 06b284ab..b818f444 100644
--- a/charts/moco/Chart.yaml
+++ b/charts/moco/Chart.yaml
@@ -15,13 +15,13 @@ type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 0.14.0
+version: 0.15.0
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to
 # follow Semantic Versioning. They should reflect the version the application is using.
 # It is recommended to use it with quotes.
-appVersion: 0.24.1
+appVersion: 0.25.0
 
 # This version does not necessarily match the supported version. This version number
 # will be updated when there is an obviously uninstallable version. If there are no
diff --git a/charts/moco/values.yaml b/charts/moco/values.yaml
index 616f1afe..5267f741 100644
--- a/charts/moco/values.yaml
+++ b/charts/moco/values.yaml
@@ -10,7 +10,7 @@ image:
 
   # image.tag -- MOCO image tag to use.
   # @default -- `{{ .Chart.AppVersion }}`
-  tag:  # 0.24.1
+  tag:  # 0.25.0
 
 # imagePullSecrets -- Secrets for pulling MOCO image from private repository.
 imagePullSecrets: []