diff --git a/kyaml/kio/filters/fmtr_test.go b/kyaml/kio/filters/fmtr_test.go
index fc462dcfb..4e2de46bb 100644
--- a/kyaml/kio/filters/fmtr_test.go
+++ b/kyaml/kio/filters/fmtr_test.go
@@ -463,7 +463,7 @@ spec:
 // TestFormatInput_service verifies a Service yaml is formatted correctly
 func TestFormatInput_validatingWebhookConfiguration(t *testing.T) {
 	y := `
-apiVersion: admissionregistration.k8s.io/v1beta1
+apiVersion: admissionregistration.k8s.io/v1
 kind: ValidatingWebhookConfiguration
 metadata:
   name: <name of this configuration object>
@@ -490,7 +490,7 @@ webhooks:
   - v1beta1
   timeoutSeconds: 1
 `
-	expected := `apiVersion: admissionregistration.k8s.io/v1beta1
+	expected := `apiVersion: admissionregistration.k8s.io/v1
 kind: ValidatingWebhookConfiguration
 metadata:
   name: <name of this configuration object>
diff --git a/kyaml/yaml/order.go b/kyaml/yaml/order.go
index 06bdc6ac1..4e01c6489 100644
--- a/kyaml/yaml/order.go
+++ b/kyaml/yaml/order.go
@@ -87,7 +87,7 @@ var WhitelistedListSortKinds = newSet(
 // sorting list field elements
 var WhitelistedListSortApis = newSet(
 	"apps/v1", "apps/v1beta1", "apps/v1beta2", "batch/v1", "batch/v1beta1",
-	"extensions/v1beta1", "v1", "admissionregistration.k8s.io/v1beta1")
+	"extensions/v1beta1", "v1", "admissionregistration.k8s.io/v1")
 
 // WhitelistedListSortFields contains json paths to list fields that should
 // be sorted, and the field they should be sorted by