diff --git a/helm/Chart.lock b/helm/Chart.lock
index cb4c30e7b..ca9d741ee 100644
--- a/helm/Chart.lock
+++ b/helm/Chart.lock
@@ -1,9 +1,9 @@
 dependencies:
 - name: prometheus
   repository: https://prometheus-community.github.io/helm-charts
-  version: 27.23.0
+  version: 27.39.0
 - name: loki-stack
   repository: https://grafana.github.io/helm-charts
   version: 2.10.2
-digest: sha256:75d459ca5e2f3c587792a26f7dcb4252123d51c2f91d6affde83577070a7abd0
-generated: "2025-09-06T00:18:32.789802488Z"
+digest: sha256:b0a23c1c53c57f5db95a02b99c8467e060900d0c147ae18ebcee7c6ad2c24646
+generated: "2025-10-07T00:18:32.109947776Z"
diff --git a/helm/Chart.yaml b/helm/Chart.yaml
index cb2ce6c6f..db585d93b 100644
--- a/helm/Chart.yaml
+++ b/helm/Chart.yaml
@@ -71,7 +71,7 @@ annotations:
 
 dependencies:
 - name: prometheus
-  version: "~27.23.0"
+  version: "~27.39.0"
   repository: https://prometheus-community.github.io/helm-charts
   condition: install.prom
 - name: loki-stack