diff --git a/plugin/pkg/auth/authorizer/rbac/bootstrappolicy/testdata/cluster-role-bindings.yaml b/plugin/pkg/auth/authorizer/rbac/bootstrappolicy/testdata/cluster-role-bindings.yaml
index 9688f9abd1f..1dbc33dd449 100644
--- a/plugin/pkg/auth/authorizer/rbac/bootstrappolicy/testdata/cluster-role-bindings.yaml
+++ b/plugin/pkg/auth/authorizer/rbac/bootstrappolicy/testdata/cluster-role-bindings.yaml
@@ -121,7 +121,7 @@ items:
     apiGroup: rbac.authorization.k8s.io
     kind: ClusterRole
     name: system:node
-  subjects: []
+  subjects: null
 - apiVersion: rbac.authorization.k8s.io/v1
   kind: ClusterRoleBinding
   metadata: