diff --git a/helm/kube-prometheus-stack/Chart.lock b/helm/kube-prometheus-stack/Chart.lock
index e196fea0..41cf9089 100644
--- a/helm/kube-prometheus-stack/Chart.lock
+++ b/helm/kube-prometheus-stack/Chart.lock
@@ -1,6 +1,6 @@
 dependencies:
 - name: kube-prometheus-stack
   repository: https://prometheus-community.github.io/helm-charts
-  version: 55.4.0
-digest: sha256:4836ba33e236adc6a9fe78e21f3ef71c3aa20519441d65fadc9a6cff1e67d760
-generated: "2023-12-13T09:47:41.770536547Z"
+  version: 55.5.0
+digest: sha256:5e4237bb3c967c7d41a784ea332dbb0f9bbaa4c097e5dd5725a4a60da23769f6
+generated: "2023-12-19T17:43:28.124660129Z"
diff --git a/helm/kube-prometheus-stack/Chart.yaml b/helm/kube-prometheus-stack/Chart.yaml
index a1d57375..b5f49aea 100644
--- a/helm/kube-prometheus-stack/Chart.yaml
+++ b/helm/kube-prometheus-stack/Chart.yaml
@@ -13,7 +13,7 @@ annotations:
   application.giantswarm.io/team: atlas
 dependencies:
   - name: kube-prometheus-stack
-    version: 55.4.0
+    version: 55.5.0
     repository: https://prometheus-community.github.io/helm-charts
 sources:
   - "https://github.com/prometheus-community/helm-charts/tree/main/charts/kube-prometheus-stack"