diff --git a/alerts/charts/Chart.lock b/alerts/charts/Chart.lock
index 5839184e7..ab4e7ad2a 100644
--- a/alerts/charts/Chart.lock
+++ b/alerts/charts/Chart.lock
@@ -1,6 +1,6 @@
 dependencies:
 - name: kube-prometheus-stack
   repository: https://prometheus-community.github.io/helm-charts
-  version: 83.4.3
-digest: sha256:0b1aff2f81e722454c3541f8f2f15a492f60b2bc9817597879b131bfe35a8689
-generated: "2026-04-29T13:00:26.731003729Z"
+  version: 83.7.0
+digest: sha256:1ee1b08071939e1e244376cdb69e031adea85fdf9993f0a98c09113220a2276e
+generated: "2026-05-05T14:41:17.884773398Z"
diff --git a/alerts/charts/Chart.yaml b/alerts/charts/Chart.yaml
index 4d8fa5d52..8744f45d5 100644
--- a/alerts/charts/Chart.yaml
+++ b/alerts/charts/Chart.yaml
@@ -9,11 +9,11 @@ maintainers:
 name: alerts
 sources:
   - https://github.com/cloudoperators/greenhouse-extensions
-version: 6.0.1
+version: 6.1.0
 keywords:
   - prometheus-alertmanager
 dependencies:
   - name: kube-prometheus-stack
     alias: alerts
     repository: https://prometheus-community.github.io/helm-charts
-    version: 83.4.3
+    version: 83.7.0
diff --git a/alerts/charts/charts/kube-prometheus-stack-83.4.3.tgz b/alerts/charts/charts/kube-prometheus-stack-83.4.3.tgz
deleted file mode 100644
index 5dd5bf6b3..000000000
Binary files a/alerts/charts/charts/kube-prometheus-stack-83.4.3.tgz and /dev/null differ
diff --git a/alerts/charts/charts/kube-prometheus-stack-83.7.0.tgz b/alerts/charts/charts/kube-prometheus-stack-83.7.0.tgz
new file mode 100644
index 000000000..ea8a90a97
Binary files /dev/null and b/alerts/charts/charts/kube-prometheus-stack-83.7.0.tgz differ
diff --git a/alerts/plugindefinition.yaml b/alerts/plugindefinition.yaml
index 0b2ed8871..9d33850b1 100644
--- a/alerts/plugindefinition.yaml
+++ b/alerts/plugindefinition.yaml
@@ -6,7 +6,7 @@ kind: PluginDefinition
 metadata:
   name: alerts
 spec:
-  version: 7.0.1
+  version: 7.1.0
   weight: 0
   displayName: Alerts
   description: Deploy and manage prometheus alertmanager instances
@@ -16,7 +16,7 @@ spec:
     # renovate depName=ghcr.io/cloudoperators/greenhouse-extensions/charts/alerts
     name: alerts
     repository: oci://ghcr.io/cloudoperators/greenhouse-extensions/charts
-    version: 6.0.1
+    version: 6.1.0
   options:
     - name: global.caCert
       description: Additional caCert to add to the CA bundle