diff --git a/charts/moco/CHANGELOG.md b/charts/moco/CHANGELOG.md
index 6fffc52a..b939a4bf 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]
 
+## [0.13.1] - 2024-07-02
+### Changed
+- Bump appVersion to 0.23.2 [#712](https://github.com/cybozu-go/moco/pull/712)
+
 ## [0.13.0] - 2024-06-25
 ### Changed
 - Bump appVersion to 0.23.1 [#703](https://github.com/cybozu-go/moco/pull/703)
@@ -169,7 +173,8 @@ TEST SUITE: None
 
 This is the first release.
 
-[Unreleased]: https://github.com/cybozu-go/moco/compare/chart-v0.13.0...HEAD
+[Unreleased]: https://github.com/cybozu-go/moco/compare/chart-v0.13.1...HEAD
+[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
 [0.11.0]: https://github.com/cybozu-go/moco/compare/chart-v0.10.2...chart-v0.11.0
diff --git a/charts/moco/Chart.yaml b/charts/moco/Chart.yaml
index 67b5a245..172d5e1e 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: 0.13.0
+version: 0.13.1
 
 # 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: 0.23.1
+appVersion: 0.23.2
 
 # 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 1873e8ef..3106f3ed 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:  # 0.23.1
+  tag:  # 0.23.2
 
 # imagePullSecrets -- Secrets for pulling MOCO image from private repository.
 imagePullSecrets: []