diff --git a/charts/grafana-operator/Chart.lock b/charts/grafana-operator/Chart.lock
index f6c3334f..35cc5a8b 100644
--- a/charts/grafana-operator/Chart.lock
+++ b/charts/grafana-operator/Chart.lock
@@ -1,6 +1,6 @@
 dependencies:
 - name: grafana-operator
   repository: oci://ghcr.io/grafana/helm-charts
-  version: v5.20.0
-digest: sha256:6bc7e7d9ff1020a883ef22cd069885c2f91d48e9a88e3242b7f576e3f86b7d0e
-generated: "2025-10-21T19:22:24.671579444Z"
+  version: 5.21.4
+digest: sha256:a332b314c93e26537052cacf22a72270dcc4c3e6da21cc60f3f795de1fb70343
+generated: "2026-01-16T00:34:01.849977471Z"
diff --git a/charts/grafana-operator/Chart.yaml b/charts/grafana-operator/Chart.yaml
index 4d86f9b1..f8ae2f92 100644
--- a/charts/grafana-operator/Chart.yaml
+++ b/charts/grafana-operator/Chart.yaml
@@ -15,7 +15,7 @@ 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: 0.3.0
+version: 0.4.0
 
 # 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
@@ -25,6 +25,6 @@ appVersion: "1.16.0"
 
 dependencies:
 - name: grafana-operator
-  version: v5.20.0
+  version: 5.21.4
   repository: "oci://ghcr.io/grafana/helm-charts"
   # repository: "oci://registry-1.docker.io/bitnamicharts"
diff --git a/charts/grafana-operator/README.md b/charts/grafana-operator/README.md
index 8ca85895..4ec255eb 100644
--- a/charts/grafana-operator/README.md
+++ b/charts/grafana-operator/README.md
@@ -1,6 +1,6 @@
 # grafana-operator
 
-![Version: 0.3.0](https://img.shields.io/badge/Version-0.3.0-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 1.16.0](https://img.shields.io/badge/AppVersion-1.16.0-informational?style=flat-square)
+![Version: 0.4.0](https://img.shields.io/badge/Version-0.4.0-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 1.16.0](https://img.shields.io/badge/AppVersion-1.16.0-informational?style=flat-square)
 
 A Helm chart for Kubernetes
 
@@ -8,7 +8,7 @@ A Helm chart for Kubernetes
 
 | Repository | Name | Version |
 |------------|------|---------|
-| oci://ghcr.io/grafana/helm-charts | grafana-operator | v5.20.0 |
+| oci://ghcr.io/grafana/helm-charts | grafana-operator | 5.21.4 |
 
 ## Values
 
diff --git a/charts/grafana-operator/charts/grafana-operator-5.21.4.tgz b/charts/grafana-operator/charts/grafana-operator-5.21.4.tgz
new file mode 100644
index 00000000..405e5e49
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diff --git a/charts/grafana-operator/charts/grafana-operator-v5.20.0.tgz b/charts/grafana-operator/charts/grafana-operator-v5.20.0.tgz
deleted file mode 100644
index fce5741e..00000000
Binary files a/charts/grafana-operator/charts/grafana-operator-v5.20.0.tgz and /dev/null differ