diff --git a/pkg/controller/workspacetemplate/workspacetemplate_controller.go b/pkg/controller/workspacetemplate/workspacetemplate_controller.go
index 4d143f0bd..3b1f94d6f 100644
--- a/pkg/controller/workspacetemplate/workspacetemplate_controller.go
+++ b/pkg/controller/workspacetemplate/workspacetemplate_controller.go
@@ -477,8 +477,19 @@ func (r *Reconciler) deleteHelmRepos(ctx context.Context, ws string) error {
 
 // deleteNamespacesInWorkspace Deletes the namespace associated with the workspace, which match the workspace label selector
 func (r *Reconciler) deleteNamespacesInWorkspace(ctx context.Context, template *tenantv1alpha2.WorkspaceTemplate) error {
-	namespace := &corev1.Namespace{}
-	return r.DeleteAllOf(ctx, namespace, client.MatchingLabels{tenantv1alpha1.WorkspaceLabel: template.Name})
+	namespaceList := &corev1.NamespaceList{}
+	err := r.Client.List(ctx, namespaceList, client.MatchingLabels{tenantv1alpha1.WorkspaceLabel: template.Name})
+	if err != nil {
+		return err
+	}
+
+	for _, namespace := range namespaceList.Items {
+		err = r.Client.Delete(ctx, &namespace)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
 }
 
 func workspaceRoleBindingChanger(workspaceRoleBinding *iamv1alpha2.WorkspaceRoleBinding, workspace, username, workspaceRoleName string) controllerutil.MutateFn {
diff --git a/staging/src/kubesphere.io/api/types/v1beta1/register.go b/staging/src/kubesphere.io/api/types/v1beta1/register.go
index 4096112a1..ec5e8566f 100644
--- a/staging/src/kubesphere.io/api/types/v1beta1/register.go
+++ b/staging/src/kubesphere.io/api/types/v1beta1/register.go
@@ -79,6 +79,8 @@ func init() {
 		&FederatedUserList{},
 		&FederatedGroup{},
 		&FederatedGroupList{},
+		&FederatedGroupBinding{},
+		&FederatedGroupBindingList{},
 		&FederatedWorkspace{},
 		&FederatedWorkspaceList{},
 		&FederatedWorkspaceRole{},