diff --git a/CHANGELOG.md b/CHANGELOG.md
index c08d5df..a5cd81c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Changed
+
+- upgrade grafana chart: 10.5.15 => 11.2.2
+- upgrade grafana : 12.3.1 => 12.4.0
+
 ## [2.32.1] - 2026-03-02
 
 ### Fixed
diff --git a/helm/grafana/Chart.lock b/helm/grafana/Chart.lock
index 439671c..24231f9 100644
--- a/helm/grafana/Chart.lock
+++ b/helm/grafana/Chart.lock
@@ -1,9 +1,9 @@
 dependencies:
 - name: grafana
   repository: https://grafana-community.github.io/helm-charts
-  version: 10.5.15
+  version: 11.2.2
 - name: pg-cluster-recovery-test
   repository: https://giantswarm.github.io/giantswarm-catalog
   version: 0.3.1
-digest: sha256:3112621188710fde426898fcc5664a4ed0fcd31197ea407c833bc72a1eea293f
-generated: "2026-02-20T12:29:13.888614794+01:00"
+digest: sha256:f41c205cb5ca4491346d5de2fdece3b457e973006997ee88d435d5d98eed0e07
+generated: "2026-02-27T21:55:58.717828861Z"
diff --git a/helm/grafana/Chart.yaml b/helm/grafana/Chart.yaml
index cedb3ee..5a066a4 100644
--- a/helm/grafana/Chart.yaml
+++ b/helm/grafana/Chart.yaml
@@ -1,8 +1,8 @@
 apiVersion: v2
 name: grafana
 version: 2.32.1
-appVersion: 12.3.1
-kubeVersion: "^1.8.0-0"
+appVersion: 12.4.0
+kubeVersion: "^1.25.0-0"
 description: The leading tool for querying and visualizing time series and metrics.
 home: https://github.com/giantswarm/grafana-app
 icon: https://s.giantswarm.io/app-icons/grafana/1/light.svg
@@ -10,7 +10,7 @@ sources:
   - https://github.com/grafana-community/helm-charts/tree/main/charts/grafana
 dependencies:
   - name: grafana
-    version: 10.5.15
+    version: 11.2.2
     repository: https://grafana-community.github.io/helm-charts
   - name: pg-cluster-recovery-test
     version: 0.3.1