diff --git a/api/openapi-spec/swagger.json b/api/openapi-spec/swagger.json
index 9a56a5c3286..1c0af0ba8a1 100644
--- a/api/openapi-spec/swagger.json
+++ b/api/openapi-spec/swagger.json
@@ -12804,8 +12804,7 @@
         }
       },
       "required": [
-        "addressType",
-        "endpoints"
+        "addressType"
       ],
       "type": "object",
       "x-kubernetes-group-version-kind": [
diff --git a/api/openapi-spec/v3/apis__discovery.k8s.io__v1_openapi.json b/api/openapi-spec/v3/apis__discovery.k8s.io__v1_openapi.json
index 151446e005d..5ad075cd9d3 100644
--- a/api/openapi-spec/v3/apis__discovery.k8s.io__v1_openapi.json
+++ b/api/openapi-spec/v3/apis__discovery.k8s.io__v1_openapi.json
@@ -226,8 +226,7 @@
           }
         },
         "required": [
-          "addressType",
-          "endpoints"
+          "addressType"
         ],
         "type": "object",
         "x-kubernetes-group-version-kind": [
diff --git a/pkg/generated/openapi/zz_generated.openapi.go b/pkg/generated/openapi/zz_generated.openapi.go
index 47c9ef60353..abfc6af67c8 100644
--- a/pkg/generated/openapi/zz_generated.openapi.go
+++ b/pkg/generated/openapi/zz_generated.openapi.go
@@ -33256,7 +33256,7 @@ func schema_k8sio_api_discovery_v1_EndpointSlice(ref common.ReferenceCallback) c
 						},
 					},
 				},
-				Required: []string{"addressType", "endpoints"},
+				Required: []string{"addressType"},
 			},
 		},
 		Dependencies: []string{
diff --git a/staging/src/k8s.io/api/discovery/v1/generated.proto b/staging/src/k8s.io/api/discovery/v1/generated.proto
index 97582a1b2a0..684b6358e33 100644
--- a/staging/src/k8s.io/api/discovery/v1/generated.proto
+++ b/staging/src/k8s.io/api/discovery/v1/generated.proto
@@ -185,6 +185,7 @@ message EndpointSlice {
 
   // endpoints is a list of unique endpoints in this slice. Each slice may
   // include a maximum of 1000 endpoints.
+  // +optional
   // +listType=atomic
   repeated Endpoint endpoints = 2;
 
diff --git a/staging/src/k8s.io/api/discovery/v1/types.go b/staging/src/k8s.io/api/discovery/v1/types.go
index ca78ce38696..7b49933c05d 100644
--- a/staging/src/k8s.io/api/discovery/v1/types.go
+++ b/staging/src/k8s.io/api/discovery/v1/types.go
@@ -52,6 +52,7 @@ type EndpointSlice struct {
 
 	// endpoints is a list of unique endpoints in this slice. Each slice may
 	// include a maximum of 1000 endpoints.
+	// +optional
 	// +listType=atomic
 	Endpoints []Endpoint `json:"endpoints" protobuf:"bytes,2,rep,name=endpoints"`