diff --git a/charts/kube-prometheus-stack/Chart.yaml b/charts/kube-prometheus-stack/Chart.yaml
index 98bb169a3f6d..a8ddb76789b1 100644
--- a/charts/kube-prometheus-stack/Chart.yaml
+++ b/charts/kube-prometheus-stack/Chart.yaml
@@ -21,7 +21,7 @@ name: kube-prometheus-stack
 sources:
   - https://github.com/prometheus-community/helm-charts
   - https://github.com/prometheus-operator/kube-prometheus
-version: 50.3.1
+version: 50.3.2
 appVersion: v0.67.1
 kubeVersion: ">=1.19.0-0"
 home: https://github.com/prometheus-operator/kube-prometheus
diff --git a/charts/kube-prometheus-stack/templates/alertmanager/service.yaml b/charts/kube-prometheus-stack/templates/alertmanager/service.yaml
index 1905c6e9c978..83f1ce476901 100644
--- a/charts/kube-prometheus-stack/templates/alertmanager/service.yaml
+++ b/charts/kube-prometheus-stack/templates/alertmanager/service.yaml
@@ -43,7 +43,8 @@ spec:
     port: {{ .Values.alertmanager.service.port }}
     targetPort: {{ .Values.alertmanager.service.targetPort }}
     protocol: TCP
-  - name: reloader-web
+  - appProtocol: http
+    name: reloader-web
     port: 8080
     targetPort: reloader-web
 {{- if .Values.alertmanager.service.additionalPorts }}
diff --git a/charts/kube-prometheus-stack/templates/prometheus/service.yaml b/charts/kube-prometheus-stack/templates/prometheus/service.yaml
index ec9110d6304c..86cac063ebb5 100644
--- a/charts/kube-prometheus-stack/templates/prometheus/service.yaml
+++ b/charts/kube-prometheus-stack/templates/prometheus/service.yaml
@@ -42,7 +42,8 @@ spec:
     {{- end }}
     port: {{ .Values.prometheus.service.port }}
     targetPort: {{ .Values.prometheus.service.targetPort }}
-  - name: reloader-web
+  - appProtocol: http
+    name: reloader-web
     port: 8080
     targetPort: reloader-web
   {{- if .Values.prometheus.thanosIngress.enabled }}