--- pkg/controller/podautoscaler/replica_calculator_test.go
+++ pkg/controller/podautoscaler/replica_calculator_test.go
@@ -139,7 +140,7 @@ func (tc *replicaCalcTestCase) prepareTestClient(t *testing.T) *fake.Clientset {
 						Name:      fmt.Sprintf("%s-%d", podNamePrefix, i),
 						Namespace: testNamespace,
 					},
-					Timestamp: metav1.Time{Time: tc.timestamp},
+					Timestamp: unversioned.Time{Time: tc.timestamp},
 					Containers: []metrics_api.ContainerMetrics{
 						{
 							Name: "container1",