diff --git a/Chapter_Four/Lecture_4_Lab/myapp/ingress-blue.yaml b/Chapter_Four/Lecture_4_Lab/myapp/ingress-blue.yaml
index ba0b960..4dedb89 100644
--- a/Chapter_Four/Lecture_4_Lab/myapp/ingress-blue.yaml
+++ b/Chapter_Four/Lecture_4_Lab/myapp/ingress-blue.yaml
@@ -1,4 +1,4 @@
-apiVersion: extensions/v1beta1
+apiVersion: networking.k8s.io/v1beta1
 kind: Ingress
 metadata:
   name: blue-ingress
diff --git a/Chapter_Four/Lecture_4_Lab/myapp/ingress-green.yaml b/Chapter_Four/Lecture_4_Lab/myapp/ingress-green.yaml
index 447cd54..ef050a3 100644
--- a/Chapter_Four/Lecture_4_Lab/myapp/ingress-green.yaml
+++ b/Chapter_Four/Lecture_4_Lab/myapp/ingress-green.yaml
@@ -1,4 +1,4 @@
-apiVersion: extensions/v1beta1
+apiVersion: networking.k8s.io/v1beta1
 kind: Ingress
 metadata:
   name: green-ingress