diff --git a/04-ingress-controller-nginx/README.md b/04-ingress-controller-nginx/README.md
index 56a8dcc..7d1a5ed 100644
--- a/04-ingress-controller-nginx/README.md
+++ b/04-ingress-controller-nginx/README.md
@@ -11,7 +11,25 @@ helm upgrade --install ingress-nginx ingress-nginx   --repo https://kubernetes.g
 Example usage:
 
 ```yaml
-apiVersion: networking.k8s.io/v1beta1
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: ingress-mandelmapper
+spec:
+  ingressClassName: nginx
+  rules:
+  - host: mandelmap.home.stevenpolley.net
+    http:
+      paths:
+      - path: /
+        pathType: Prefix
+        backend:
+          service:
+            name: mandelmapper
+            port:
+              number: 6161
+
+apiVersion: networking.k8s.io/v1
 kind: Ingress
 metadata:
   name: ingress-myservicea
@@ -23,10 +41,12 @@ spec:
       paths:
       - path: /
         backend:
-          serviceName: myservicea
-          servicePort: 8080
+          service:
+            name: myservicea
+            port:
+              number: 8080
 ---
-apiVersion: networking.k8s.io/v1beta1
+apiVersion: networking.k8s.io/v1
 kind: Ingress
 metadata:
   name: ingress-myserviceb
@@ -38,8 +58,10 @@ spec:
       paths:
       - path: /
         backend:
-          serviceName: myserviceb
-          servicePort: 8443
+          service:
+            name: myserviceb
+            port:
+              number: 8443
   tls:
     - hosts:
       - myserviceb.foo.org