diff --git a/example/helm/prometheusalert/templates/ingress.yaml b/example/helm/prometheusalert/templates/ingress.yaml
index eaf1ff98..ff9b67cf 100644
--- a/example/helm/prometheusalert/templates/ingress.yaml
+++ b/example/helm/prometheusalert/templates/ingress.yaml
@@ -1,7 +1,7 @@
 {{- if .Values.ingress.enabled -}}
 {{- $fullName := include "prometheusalert.fullname" . -}}
 {{- $svcPort := .Values.service.port -}}
-apiVersion: extensions/v1beta1
+apiVersion: networking.k8s.io/v1
 kind: Ingress
 metadata:
   name: {{ $fullName }}
@@ -29,9 +29,12 @@ spec:
         paths:
         {{- range .paths }}
           - path: {{ . }}
+            pathType: Prefix
             backend:
-              serviceName: {{ $fullName }}
-              servicePort: {{ $svcPort }}
+              service:
+                name: {{ $fullName }}
+                port:
+                  number: {{ $svcPort }}
         {{- end }}
   {{- end }}
 {{- end }}