diff --git a/pkg/router/ingress.go b/pkg/router/ingress.go
index 00cb940f..59eb5692 100644
--- a/pkg/router/ingress.go
+++ b/pkg/router/ingress.go
@@ -43,7 +43,7 @@ func createIngress(logger *zap.Logger, trigger *fv1.HTTPTrigger, kubeClient *kub
 	if !trigger.Spec.CreateIngress {
 		return
 	}
-	_, err := kubeClient.ExtensionsV1beta1().Ingresses(podNamespace).Create(context.TODO(), util.GetIngressSpec(podNamespace, trigger), v1.CreateOptions{})
+	_, err := kubeClient.NetworkingV1().Ingresses(podNamespace).Create(context.TODO(), util.GetIngressSpec(podNamespace, trigger), v1.CreateOptions{})
 	if err != nil && !k8serrors.IsAlreadyExists(err) {
 		logger.Error("failed to create ingress", zap.Error(err))
 		return
@@ -56,13 +56,13 @@ func deleteIngress(logger *zap.Logger, trigger *fv1.HTTPTrigger, kubeClient *kub
 		return
 	}
 
-	ingress, err := kubeClient.ExtensionsV1beta1().Ingresses(podNamespace).Get(context.TODO(), trigger.ObjectMeta.Name, v1.GetOptions{})
+	ingress, err := kubeClient.NetworkingV1().Ingresses(podNamespace).Get(context.TODO(), trigger.ObjectMeta.Name, v1.GetOptions{})
 	if err != nil && !k8serrors.IsNotFound(err) {
 		logger.Error("failed to get ingress when deleting trigger", zap.Error(err), zap.String("trigger", trigger.ObjectMeta.Name))
 		return
 	}
 
-	err = kubeClient.ExtensionsV1beta1().Ingresses(podNamespace).Delete(context.TODO(), ingress.Name, v1.DeleteOptions{})
+	err = kubeClient.NetworkingV1().Ingresses(podNamespace).Delete(context.TODO(), ingress.Name, v1.DeleteOptions{})
 	if err != nil && !k8serrors.IsNotFound(err) {
 		logger.Error("failed to delete ingress for trigger",
 			zap.Error(err),
@@ -86,7 +86,7 @@ func updateIngress(logger *zap.Logger, oldT *fv1.HTTPTrigger, newT *fv1.HTTPTrig
 		return
 	}
 
-	oldIngress, err := kubeClient.ExtensionsV1beta1().Ingresses(podNamespace).Get(context.TODO(), oldT.ObjectMeta.Name, v1.GetOptions{})
+	oldIngress, err := kubeClient.NetworkingV1().Ingresses(podNamespace).Get(context.TODO(), oldT.ObjectMeta.Name, v1.GetOptions{})
 	if err != nil {
 		if k8serrors.IsNotFound(err) {
 			createIngress(logger, newT, kubeClient)
@@ -123,7 +123,7 @@ func updateIngress(logger *zap.Logger, oldT *fv1.HTTPTrigger, newT *fv1.HTTPTrig
 	}
 
 	if changes {
-		_, err = kubeClient.ExtensionsV1beta1().Ingresses(podNamespace).Update(context.TODO(), oldIngress, v1.UpdateOptions{})
+		_, err = kubeClient.NetworkingV1().Ingresses(podNamespace).Update(context.TODO(), oldIngress, v1.UpdateOptions{})
 		if err != nil {
 			logger.Error("failed to update ingress for trigger", zap.Error(err), zap.String("trigger", oldT.ObjectMeta.Name))
 			return
diff --git a/pkg/router/util/util.go b/pkg/router/util/util.go
index 8c1fcf4f..1cad7b57 100644
--- a/pkg/router/util/util.go
+++ b/pkg/router/util/util.go
@@ -17,14 +17,14 @@ limitations under the License.
 package util
 
 import (
-	"k8s.io/api/extensions/v1beta1"
+	v1 "k8s.io/api/networking/v1"
+
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"k8s.io/apimachinery/pkg/util/intstr"
 
 	fv1 "github.com/fission/fission/pkg/apis/core/v1"
 )
 
-func GetIngressSpec(namespace string, trigger *fv1.HTTPTrigger) *v1beta1.Ingress {
+func GetIngressSpec(namespace string, trigger *fv1.HTTPTrigger) *v1.Ingress {
 	// TODO: remove backward compatibility
 	host, path := trigger.Spec.Host, trigger.Spec.RelativeURL
 	if trigger.Spec.Prefix != nil && *trigger.Spec.Prefix != "" {
@@ -41,9 +41,9 @@ func GetIngressSpec(namespace string, trigger *fv1.HTTPTrigger) *v1beta1.Ingress
 		host = "" // wildcard Ingress host
 	}
 
-	var ingTLS []v1beta1.IngressTLS
+	var ingTLS []v1.IngressTLS
 	if len(trigger.Spec.IngressConfig.TLS) > 0 {
-		ingTLS = []v1beta1.IngressTLS{
+		ingTLS = []v1.IngressTLS{
 			{
 				Hosts: []string{
 					trigger.Spec.IngressConfig.Host,
@@ -53,7 +53,7 @@ func GetIngressSpec(namespace string, trigger *fv1.HTTPTrigger) *v1beta1.Ingress
 		}
 	}
 
-	ing := &v1beta1.Ingress{
+	ing := &v1.Ingress{
 		ObjectMeta: metav1.ObjectMeta{
 			Labels: GetDeployLabels(trigger),
 			Name:   trigger.ObjectMeta.Name,
@@ -63,20 +63,21 @@ func GetIngressSpec(namespace string, trigger *fv1.HTTPTrigger) *v1beta1.Ingress
 			Namespace:   namespace,
 			Annotations: trigger.Spec.IngressConfig.Annotations,
 		},
-		Spec: v1beta1.IngressSpec{
+		Spec: v1.IngressSpec{
 			TLS: ingTLS,
-			Rules: []v1beta1.IngressRule{
+			Rules: []v1.IngressRule{
 				{
 					Host: host,
-					IngressRuleValue: v1beta1.IngressRuleValue{
-						HTTP: &v1beta1.HTTPIngressRuleValue{
-							Paths: []v1beta1.HTTPIngressPath{
+					IngressRuleValue: v1.IngressRuleValue{
+						HTTP: &v1.HTTPIngressRuleValue{
+							Paths: []v1.HTTPIngressPath{
 								{
-									Backend: v1beta1.IngressBackend{
-										ServiceName: "router",
-										ServicePort: intstr.IntOrString{
-											Type:   intstr.Int,
-											IntVal: 80,
+									Backend: v1.IngressBackend{
+										Service: &v1.IngressServiceBackend{
+											Name: "router",
+											Port: v1.ServiceBackendPort{
+												Number: 80,
+											},
 										},
 									},
 									Path: path,
diff --git a/pkg/router/util/util_test.go b/pkg/router/util/util_test.go
index 086d6998..ac3762d8 100644
--- a/pkg/router/util/util_test.go
+++ b/pkg/router/util/util_test.go
@@ -20,9 +20,8 @@ import (
 	"reflect"
 	"testing"
 
-	"k8s.io/api/extensions/v1beta1"
+	v1 "k8s.io/api/networking/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"k8s.io/apimachinery/pkg/util/intstr"
 
 	fv1 "github.com/fission/fission/pkg/apis/core/v1"
 )
@@ -35,7 +34,7 @@ func TestGetIngressSpec(t *testing.T) {
 	tests := []struct {
 		name string
 		args args
-		want *v1beta1.Ingress
+		want *v1.Ingress
 	}{
 		{
 			name: "host-backward-compatibility",
@@ -58,7 +57,7 @@ func TestGetIngressSpec(t *testing.T) {
 					},
 				},
 			},
-			want: &v1beta1.Ingress{
+			want: &v1.Ingress{
 				ObjectMeta: metav1.ObjectMeta{
 					Labels: map[string]string{
 						"triggerName":      "foo",
@@ -69,19 +68,20 @@ func TestGetIngressSpec(t *testing.T) {
 					Namespace:   "foobarNS",
 					Annotations: nil,
 				},
-				Spec: v1beta1.IngressSpec{
-					Rules: []v1beta1.IngressRule{
+				Spec: v1.IngressSpec{
+					Rules: []v1.IngressRule{
 						{
 							Host: "test.com",
-							IngressRuleValue: v1beta1.IngressRuleValue{
-								HTTP: &v1beta1.HTTPIngressRuleValue{
-									Paths: []v1beta1.HTTPIngressPath{
+							IngressRuleValue: v1.IngressRuleValue{
+								HTTP: &v1.HTTPIngressRuleValue{
+									Paths: []v1.HTTPIngressPath{
 										{
-											Backend: v1beta1.IngressBackend{
-												ServiceName: "router",
-												ServicePort: intstr.IntOrString{
-													Type:   intstr.Int,
-													IntVal: 80,
+											Backend: v1.IngressBackend{
+												Service: &v1.IngressServiceBackend{
+													Name: "router",
+													Port: v1.ServiceBackendPort{
+														Number: 80,
+													},
 												},
 											},
 											Path: "/foo/bar",
@@ -116,7 +116,7 @@ func TestGetIngressSpec(t *testing.T) {
 					},
 				},
 			},
-			want: &v1beta1.Ingress{
+			want: &v1.Ingress{
 				ObjectMeta: metav1.ObjectMeta{
 					Labels: map[string]string{
 						"triggerName":      "foo",
@@ -129,19 +129,20 @@ func TestGetIngressSpec(t *testing.T) {
 						"key": "value",
 					},
 				},
-				Spec: v1beta1.IngressSpec{
-					Rules: []v1beta1.IngressRule{
+				Spec: v1.IngressSpec{
+					Rules: []v1.IngressRule{
 						{
 							Host: "",
-							IngressRuleValue: v1beta1.IngressRuleValue{
-								HTTP: &v1beta1.HTTPIngressRuleValue{
-									Paths: []v1beta1.HTTPIngressPath{
+							IngressRuleValue: v1.IngressRuleValue{
+								HTTP: &v1.HTTPIngressRuleValue{
+									Paths: []v1.HTTPIngressPath{
 										{
-											Backend: v1beta1.IngressBackend{
-												ServiceName: "router",
-												ServicePort: intstr.IntOrString{
-													Type:   intstr.Int,
-													IntVal: 80,
+											Backend: v1.IngressBackend{
+												Service: &v1.IngressServiceBackend{
+													Name: "router",
+													Port: v1.ServiceBackendPort{
+														Number: 80,
+													},
 												},
 											},
 											Path: "/foo/bar",
@@ -176,7 +177,7 @@ func TestGetIngressSpec(t *testing.T) {
 					},
 				},
 			},
-			want: &v1beta1.Ingress{
+			want: &v1.Ingress{
 				ObjectMeta: metav1.ObjectMeta{
 					Labels: map[string]string{
 						"triggerName":      "foo",
@@ -187,19 +188,20 @@ func TestGetIngressSpec(t *testing.T) {
 					Namespace:   "foobarNS",
 					Annotations: nil,
 				},
-				Spec: v1beta1.IngressSpec{
-					Rules: []v1beta1.IngressRule{
+				Spec: v1.IngressSpec{
+					Rules: []v1.IngressRule{
 						{
 							Host: "test.com",
-							IngressRuleValue: v1beta1.IngressRuleValue{
-								HTTP: &v1beta1.HTTPIngressRuleValue{
-									Paths: []v1beta1.HTTPIngressPath{
+							IngressRuleValue: v1.IngressRuleValue{
+								HTTP: &v1.HTTPIngressRuleValue{
+									Paths: []v1.HTTPIngressPath{
 										{
-											Backend: v1beta1.IngressBackend{
-												ServiceName: "router",
-												ServicePort: intstr.IntOrString{
-													Type:   intstr.Int,
-													IntVal: 80,
+											Backend: v1.IngressBackend{
+												Service: &v1.IngressServiceBackend{
+													Name: "router",
+													Port: v1.ServiceBackendPort{
+														Number: 80,
+													},
 												},
 											},
 											Path: "/foo/bar",
@@ -234,7 +236,7 @@ func TestGetIngressSpec(t *testing.T) {
 					},
 				},
 			},
-			want: &v1beta1.Ingress{
+			want: &v1.Ingress{
 				ObjectMeta: metav1.ObjectMeta{
 					Labels: map[string]string{
 						"triggerName":      "foo",
@@ -245,19 +247,20 @@ func TestGetIngressSpec(t *testing.T) {
 					Namespace:   "foobarNS",
 					Annotations: nil,
 				},
-				Spec: v1beta1.IngressSpec{
-					Rules: []v1beta1.IngressRule{
+				Spec: v1.IngressSpec{
+					Rules: []v1.IngressRule{
 						{
 							Host: "",
-							IngressRuleValue: v1beta1.IngressRuleValue{
-								HTTP: &v1beta1.HTTPIngressRuleValue{
-									Paths: []v1beta1.HTTPIngressPath{
+							IngressRuleValue: v1.IngressRuleValue{
+								HTTP: &v1.HTTPIngressRuleValue{
+									Paths: []v1.HTTPIngressPath{
 										{
-											Backend: v1beta1.IngressBackend{
-												ServiceName: "router",
-												ServicePort: intstr.IntOrString{
-													Type:   intstr.Int,
-													IntVal: 80,
+											Backend: v1.IngressBackend{
+												Service: &v1.IngressServiceBackend{
+													Name: "router",
+													Port: v1.ServiceBackendPort{
+														Number: 80,
+													},
 												},
 											},
 											Path: "/foo/{bar}",
@@ -292,7 +295,7 @@ func TestGetIngressSpec(t *testing.T) {
 					},
 				},
 			},
-			want: &v1beta1.Ingress{
+			want: &v1.Ingress{
 				ObjectMeta: metav1.ObjectMeta{
 					Labels: map[string]string{
 						"triggerName":      "foo",
@@ -303,19 +306,20 @@ func TestGetIngressSpec(t *testing.T) {
 					Namespace:   "foobarNS",
 					Annotations: nil,
 				},
-				Spec: v1beta1.IngressSpec{
-					Rules: []v1beta1.IngressRule{
+				Spec: v1.IngressSpec{
+					Rules: []v1.IngressRule{
 						{
 							Host: "",
-							IngressRuleValue: v1beta1.IngressRuleValue{
-								HTTP: &v1beta1.HTTPIngressRuleValue{
-									Paths: []v1beta1.HTTPIngressPath{
+							IngressRuleValue: v1.IngressRuleValue{
+								HTTP: &v1.HTTPIngressRuleValue{
+									Paths: []v1.HTTPIngressPath{
 										{
-											Backend: v1beta1.IngressBackend{
-												ServiceName: "router",
-												ServicePort: intstr.IntOrString{
-													Type:   intstr.Int,
-													IntVal: 80,
+											Backend: v1.IngressBackend{
+												Service: &v1.IngressServiceBackend{
+													Name: "router",
+													Port: v1.ServiceBackendPort{
+														Number: 80,
+													},
 												},
 											},
 											Path: "/foo/{bar}",
@@ -351,7 +355,7 @@ func TestGetIngressSpec(t *testing.T) {
 					},
 				},
 			},
-			want: &v1beta1.Ingress{
+			want: &v1.Ingress{
 				ObjectMeta: metav1.ObjectMeta{
 					Labels: map[string]string{
 						"triggerName":      "foo",
@@ -362,19 +366,20 @@ func TestGetIngressSpec(t *testing.T) {
 					Namespace:   "foobarNS",
 					Annotations: nil,
 				},
-				Spec: v1beta1.IngressSpec{
-					Rules: []v1beta1.IngressRule{
+				Spec: v1.IngressSpec{
+					Rules: []v1.IngressRule{
 						{
 							Host: "test.com",
-							IngressRuleValue: v1beta1.IngressRuleValue{
-								HTTP: &v1beta1.HTTPIngressRuleValue{
-									Paths: []v1beta1.HTTPIngressPath{
+							IngressRuleValue: v1.IngressRuleValue{
+								HTTP: &v1.HTTPIngressRuleValue{
+									Paths: []v1.HTTPIngressPath{
 										{
-											Backend: v1beta1.IngressBackend{
-												ServiceName: "router",
-												ServicePort: intstr.IntOrString{
-													Type:   intstr.Int,
-													IntVal: 80,
+											Backend: v1.IngressBackend{
+												Service: &v1.IngressServiceBackend{
+													Name: "router",
+													Port: v1.ServiceBackendPort{
+														Number: 80,
+													},
 												},
 											},
 											Path: "/foo/bar",
@@ -409,7 +414,7 @@ func TestGetIngressSpec(t *testing.T) {
 					},
 				},
 			},
-			want: &v1beta1.Ingress{
+			want: &v1.Ingress{
 				ObjectMeta: metav1.ObjectMeta{
 					Labels: map[string]string{
 						"triggerName":      "foo",
@@ -420,19 +425,20 @@ func TestGetIngressSpec(t *testing.T) {
 					Namespace:   "foobarNS",
 					Annotations: nil,
 				},
-				Spec: v1beta1.IngressSpec{
-					Rules: []v1beta1.IngressRule{
+				Spec: v1.IngressSpec{
+					Rules: []v1.IngressRule{
 						{
 							Host: "",
-							IngressRuleValue: v1beta1.IngressRuleValue{
-								HTTP: &v1beta1.HTTPIngressRuleValue{
-									Paths: []v1beta1.HTTPIngressPath{
+							IngressRuleValue: v1.IngressRuleValue{
+								HTTP: &v1.HTTPIngressRuleValue{
+									Paths: []v1.HTTPIngressPath{
 										{
-											Backend: v1beta1.IngressBackend{
-												ServiceName: "router",
-												ServicePort: intstr.IntOrString{
-													Type:   intstr.Int,
-													IntVal: 80,
+											Backend: v1.IngressBackend{
+												Service: &v1.IngressServiceBackend{
+													Name: "router",
+													Port: v1.ServiceBackendPort{
+														Number: 80,
+													},
 												},
 											},
 											Path: "/foo/bar",
@@ -469,7 +475,7 @@ func TestGetIngressSpec(t *testing.T) {
 					},
 				},
 			},
-			want: &v1beta1.Ingress{
+			want: &v1.Ingress{
 				ObjectMeta: metav1.ObjectMeta{
 					Labels: map[string]string{
 						"triggerName":      "foo",
@@ -482,8 +488,8 @@ func TestGetIngressSpec(t *testing.T) {
 						"key": "value",
 					},
 				},
-				Spec: v1beta1.IngressSpec{
-					TLS: []v1beta1.IngressTLS{
+				Spec: v1.IngressSpec{
+					TLS: []v1.IngressTLS{
 						{
 							Hosts: []string{
 								"test.com",
@@ -491,18 +497,19 @@ func TestGetIngressSpec(t *testing.T) {
 							SecretName: "foobar",
 						},
 					},
-					Rules: []v1beta1.IngressRule{
+					Rules: []v1.IngressRule{
 						{
 							Host: "",
-							IngressRuleValue: v1beta1.IngressRuleValue{
-								HTTP: &v1beta1.HTTPIngressRuleValue{
-									Paths: []v1beta1.HTTPIngressPath{
+							IngressRuleValue: v1.IngressRuleValue{
+								HTTP: &v1.HTTPIngressRuleValue{
+									Paths: []v1.HTTPIngressPath{
 										{
-											Backend: v1beta1.IngressBackend{
-												ServiceName: "router",
-												ServicePort: intstr.IntOrString{
-													Type:   intstr.Int,
-													IntVal: 80,
+											Backend: v1.IngressBackend{
+												Service: &v1.IngressServiceBackend{
+													Name: "router",
+													Port: v1.ServiceBackendPort{
+														Number: 80,
+													},
 												},
 											},
 											Path: "/foo/bar",