diff --git a/cmd/kubenest/operator/app/operator.go b/cmd/kubenest/operator/app/operator.go
index 00b0e3b40..42a3ddab5 100644
--- a/cmd/kubenest/operator/app/operator.go
+++ b/cmd/kubenest/operator/app/operator.go
@@ -14,7 +14,6 @@ import (
 	clientcmdapi "k8s.io/client-go/tools/clientcmd/api"
 	cliflag "k8s.io/component-base/cli/flag"
 	"k8s.io/klog/v2"
-	kubeschedulerscheme "k8s.io/kubernetes/pkg/scheduler/apis/config/scheme"
 	controllerruntime "sigs.k8s.io/controller-runtime"
 	"sigs.k8s.io/controller-runtime/pkg/manager"
 
@@ -141,7 +140,7 @@ func loadConfig(file string) (*v1alpha1.KubeNestConfiguration, error) {
 		return nil, err
 	}
 	// The UniversalDecoder runs defaulting and returns the internal type by default.
-	obj, gvk, err := kubeschedulerscheme.Codecs.UniversalDecoder().Decode(data, nil, nil)
+	obj, gvk, err := scheme.Codecs.UniversalDecoder().Decode(data, nil, nil)
 	if err != nil {
 		return nil, err
 	}
diff --git a/pkg/scheme/scheme.go b/pkg/scheme/scheme.go
index 44b63c09b..de4e8ca5c 100644
--- a/pkg/scheme/scheme.go
+++ b/pkg/scheme/scheme.go
@@ -2,14 +2,20 @@ package scheme
 
 import (
 	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/runtime/serializer"
 	"k8s.io/client-go/kubernetes/scheme"
 	mcsv1alpha1 "sigs.k8s.io/mcs-api/pkg/apis/v1alpha1"
 
 	kosmosv1alpha1 "github.com/kosmos.io/kosmos/pkg/apis/kosmos/v1alpha1"
 )
 
-// aggregatedScheme aggregates Kubernetes and extended schemes.
-var aggregatedScheme = runtime.NewScheme()
+var (
+	// aggregatedScheme aggregates Kubernetes and extended schemes.
+	aggregatedScheme = runtime.NewScheme()
+
+	// Codecs provides access to encoding and decoding for the scheme.
+	Codecs = serializer.NewCodecFactory(aggregatedScheme, serializer.EnableStrict)
+)
 
 func init() {
 	err := scheme.AddToScheme(aggregatedScheme) // add Kubernetes schemes