--- pkg/controller/podautoscaler/metrics/metrics_client_test.go
+++ pkg/controller/podautoscaler/metrics/metrics_client_test.go
@@ -110,7 +110,7 @@ func (tc *testCase) prepareTestClient(t *testing.T) *fake.Clientset {
 						Name:      fmt.Sprintf("%s-%d", podNamePrefix, i),
 						Namespace: namespace,
 					},
-					Timestamp:  metav1.Time{Time: fixedTimestamp.Add(time.Duration(tc.targetTimestamp) * time.Minute)},
+					Timestamp:  unversioned.Time{Time: fixedTimestamp.Add(time.Duration(tc.targetTimestamp) * time.Minute)},
 					Containers: []metrics_api.ContainerMetrics{},
 				}
 				for j, cpu := range containers {