diff --git a/test/e2e/apimachinery/apply.go b/test/e2e/apimachinery/apply.go
index cd04d3f6d56..e5579dac2ff 100644
--- a/test/e2e/apimachinery/apply.go
+++ b/test/e2e/apimachinery/apply.go
@@ -539,7 +539,7 @@ var _ = SIGDescribe("ServerSideApply", func() {
 			Resource("deployments").
 			Name("deployment").
 			Param("fieldManager", "apply_test").
-			Body([]byte(obj)).Do(context.TODO()).Get()
+			Body(obj).Do(context.TODO()).Get()
 		if err == nil {
 			framework.Failf("Expecting to get conflicts when applying object")
 		}
@@ -558,7 +558,7 @@ var _ = SIGDescribe("ServerSideApply", func() {
 			Name("deployment").
 			Param("force", "true").
 			Param("fieldManager", "apply_test").
-			Body([]byte(obj)).Do(context.TODO()).Get()
+			Body(obj).Do(context.TODO()).Get()
 		if err != nil {
 			framework.Failf("Failed to apply object with force: %v", err)
 		}
diff --git a/test/e2e/apimachinery/garbage_collector.go b/test/e2e/apimachinery/garbage_collector.go
index a8796b4ed1f..a6970ea5303 100644
--- a/test/e2e/apimachinery/garbage_collector.go
+++ b/test/e2e/apimachinery/garbage_collector.go
@@ -737,7 +737,7 @@ var _ = SIGDescribe("Garbage collector", func() {
 		rcClient := clientSet.CoreV1().ReplicationControllers(f.Namespace.Name)
 		podClient := clientSet.CoreV1().Pods(f.Namespace.Name)
 		rc1Name := "simpletest-rc-to-be-deleted"
-		replicas := int32(estimateMaximumPods(clientSet, 10, 100))
+		replicas := estimateMaximumPods(clientSet, 10, 100)
 		halfReplicas := int(replicas / 2)
 		uniqLabelsDeleted := getUniqLabel("gctest_d", "valid_and_pending_owners_d")
 		rc1 := newOwnerRC(f, rc1Name, replicas, uniqLabelsDeleted)
diff --git a/test/e2e/apimachinery/namespace.go b/test/e2e/apimachinery/namespace.go
index 466f968cf2e..97becf05818 100644
--- a/test/e2e/apimachinery/namespace.go
+++ b/test/e2e/apimachinery/namespace.go
@@ -56,7 +56,7 @@ func extinguish(f *framework.Framework, totalNS int, maxAllowedAfterDel int, max
 
 	//Wait 10 seconds, then SEND delete requests for all the namespaces.
 	ginkgo.By("Waiting 10 seconds")
-	time.Sleep(time.Duration(10 * time.Second))
+	time.Sleep(10 * time.Second)
 	deleteFilter := []string{"nslifetest"}
 	deleted, err := framework.DeleteNamespaces(f.ClientSet, deleteFilter, nil /* skipFilter */)
 	framework.ExpectNoError(err, "failed to delete namespace(s) containing: %s", deleteFilter)
@@ -273,7 +273,7 @@ var _ = SIGDescribe("Namespaces [Serial]", func() {
 			},
 		})
 		framework.ExpectNoError(err, "failed to marshal JSON patch data")
-		_, err = f.ClientSet.CoreV1().Namespaces().Patch(context.TODO(), namespaceName, types.StrategicMergePatchType, []byte(nspatch), metav1.PatchOptions{})
+		_, err = f.ClientSet.CoreV1().Namespaces().Patch(context.TODO(), namespaceName, types.StrategicMergePatchType, nspatch, metav1.PatchOptions{})
 		framework.ExpectNoError(err, "failed to patch Namespace")
 
 		ginkgo.By("get the Namespace and ensuring it has the label")