diff --git a/charts/grafana-sampling/Chart.lock b/charts/grafana-sampling/Chart.lock
index 913ed18818..49eb0829c5 100644
--- a/charts/grafana-sampling/Chart.lock
+++ b/charts/grafana-sampling/Chart.lock
@@ -1,9 +1,9 @@
 dependencies:
 - name: alloy
   repository: https://grafana.github.io/helm-charts
-  version: 1.2.1
+  version: 1.4.0
 - name: alloy
   repository: https://grafana.github.io/helm-charts
-  version: 1.2.1
-digest: sha256:2d813ce905b1503d97444bb668aab27814e3dee45e68187d3b12601aa5ba06d0
-generated: "2025-08-11T11:05:07.041393-07:00"
+  version: 1.4.0
+digest: sha256:fd683be5718a051784d8551306e81a4127bba3f49269307876a9b2c2d892d412
+generated: "2025-11-06T00:28:04.498517796Z"
diff --git a/charts/grafana-sampling/Chart.yaml b/charts/grafana-sampling/Chart.yaml
index 02cecd32e6..afb4ecef4a 100644
--- a/charts/grafana-sampling/Chart.yaml
+++ b/charts/grafana-sampling/Chart.yaml
@@ -9,10 +9,10 @@ sources:
   - https://grafana.com/docs/grafana-cloud/monitor-applications/application-observability/setup/sampling/tail/
 dependencies:
   - name: alloy
-    version: 1.2.1
+    version: 1.4.0
     repository: https://grafana.github.io/helm-charts
     alias: alloy-deployment
   - name: alloy
-    version: 1.2.1
+    version: 1.4.0
     repository: https://grafana.github.io/helm-charts
     alias: alloy-statefulset