diff --git a/pkg/api/testing/serialization_test.go b/pkg/api/testing/serialization_test.go
index cccccedb8c0..8c24ca09dae 100644
--- a/pkg/api/testing/serialization_test.go
+++ b/pkg/api/testing/serialization_test.go
@@ -19,7 +19,7 @@ package testing
 import (
 	"bytes"
 	"encoding/hex"
-	"encoding/json"
+	gojson "encoding/json"
 	"io/ioutil"
 	"math/rand"
 	"reflect"
@@ -37,7 +37,7 @@ import (
 	"k8s.io/apimachinery/pkg/conversion"
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/runtime/schema"
-	k8s_json "k8s.io/apimachinery/pkg/runtime/serializer/json"
+	"k8s.io/apimachinery/pkg/runtime/serializer/json"
 	"k8s.io/apimachinery/pkg/runtime/serializer/streaming"
 	"k8s.io/apimachinery/pkg/util/diff"
 	"k8s.io/apimachinery/pkg/util/sets"
@@ -437,7 +437,7 @@ func BenchmarkEncodeJSONMarshal(b *testing.B) {
 	width := len(items)
 	b.ResetTimer()
 	for i := 0; i < b.N; i++ {
-		if _, err := json.Marshal(&items[i%width]); err != nil {
+		if _, err := gojson.Marshal(&items[i%width]); err != nil {
 			b.Fatal(err)
 		}
 	}
@@ -529,7 +529,7 @@ func BenchmarkDecodeIntoJSON(b *testing.B) {
 	b.ResetTimer()
 	for i := 0; i < b.N; i++ {
 		obj := v1.Pod{}
-		if err := json.Unmarshal(encoded[i%width], &obj); err != nil {
+		if err := gojson.Unmarshal(encoded[i%width], &obj); err != nil {
 			b.Fatal(err)
 		}
 	}
@@ -579,7 +579,7 @@ func BenchmarkDecodeIntoJSONCodecGenConfigCompatibleWithStandardLibrary(b *testi
 	}
 
 	b.ResetTimer()
-	iter := k8s_json.CaseSensitiveJsonIterator()
+	iter := json.CaseSensitiveJsonIterator()
 	for i := 0; i < b.N; i++ {
 		obj := v1.Pod{}
 		if err := iter.Unmarshal(encoded[i%width], &obj); err != nil {
diff --git a/staging/src/k8s.io/apimachinery/pkg/apis/meta/v1/group_version_test.go b/staging/src/k8s.io/apimachinery/pkg/apis/meta/v1/group_version_test.go
index ab62ff424cb..5250e33cba6 100644
--- a/staging/src/k8s.io/apimachinery/pkg/apis/meta/v1/group_version_test.go
+++ b/staging/src/k8s.io/apimachinery/pkg/apis/meta/v1/group_version_test.go
@@ -17,11 +17,11 @@ limitations under the License.
 package v1
 
 import (
-	"encoding/json"
+	gojson "encoding/json"
 	"reflect"
 	"testing"
 
-	k8s_json "k8s.io/apimachinery/pkg/runtime/serializer/json"
+	"k8s.io/apimachinery/pkg/runtime/serializer/json"
 )
 
 type GroupVersionHolder struct {
@@ -40,14 +40,14 @@ func TestGroupVersionUnmarshalJSON(t *testing.T) {
 	for _, c := range cases {
 		var result GroupVersionHolder
 		// test golang lib's JSON codec
-		if err := json.Unmarshal([]byte(c.input), &result); err != nil {
+		if err := gojson.Unmarshal([]byte(c.input), &result); err != nil {
 			t.Errorf("JSON codec failed to unmarshal input '%v': %v", c.input, err)
 		}
 		if !reflect.DeepEqual(result.GV, c.expect) {
 			t.Errorf("JSON codec failed to unmarshal input '%s': expected %+v, got %+v", c.input, c.expect, result.GV)
 		}
 		// test the json-iterator codec
-		iter := k8s_json.CaseSensitiveJsonIterator()
+		iter := json.CaseSensitiveJsonIterator()
 		if err := iter.Unmarshal(c.input, &result); err != nil {
 			t.Errorf("json-iterator codec failed to unmarshal input '%v': %v", c.input, err)
 		}
@@ -68,7 +68,7 @@ func TestGroupVersionMarshalJSON(t *testing.T) {
 
 	for _, c := range cases {
 		input := GroupVersionHolder{c.input}
-		result, err := json.Marshal(&input)
+		result, err := gojson.Marshal(&input)
 		if err != nil {
 			t.Errorf("Failed to marshal input '%v': %v", input, err)
 		}
diff --git a/staging/src/k8s.io/apimachinery/pkg/apis/meta/v1/types_test.go b/staging/src/k8s.io/apimachinery/pkg/apis/meta/v1/types_test.go
index ed5f20c4057..4c55198ee4b 100644
--- a/staging/src/k8s.io/apimachinery/pkg/apis/meta/v1/types_test.go
+++ b/staging/src/k8s.io/apimachinery/pkg/apis/meta/v1/types_test.go
@@ -17,14 +17,14 @@ limitations under the License.
 package v1
 
 import (
-	"encoding/json"
+	gojson "encoding/json"
 	"reflect"
 	"testing"
 
-	k8s_json "k8s.io/apimachinery/pkg/runtime/serializer/json"
+	"k8s.io/apimachinery/pkg/runtime/serializer/json"
 )
 
-func TestVerbsUgorjiMarshalJSON(t *testing.T) {
+func TestVerbsMarshalJSON(t *testing.T) {
 	cases := []struct {
 		input  APIResource
 		result string
@@ -35,7 +35,7 @@ func TestVerbsUgorjiMarshalJSON(t *testing.T) {
 	}
 
 	for i, c := range cases {
-		result, err := json.Marshal(&c.input)
+		result, err := gojson.Marshal(&c.input)
 		if err != nil {
 			t.Errorf("[%d] Failed to marshal input: '%v': %v", i, c.input, err)
 		}
@@ -45,7 +45,7 @@ func TestVerbsUgorjiMarshalJSON(t *testing.T) {
 	}
 }
 
-func TestVerbsUJsonIterUnmarshalJSON(t *testing.T) {
+func TestVerbsJsonIterUnmarshalJSON(t *testing.T) {
 	cases := []struct {
 		input  string
 		result APIResource
@@ -56,7 +56,7 @@ func TestVerbsUJsonIterUnmarshalJSON(t *testing.T) {
 		{`{"verbs":["delete"]}`, APIResource{Verbs: Verbs([]string{"delete"})}},
 	}
 
-	iter := k8s_json.CaseSensitiveJsonIterator()
+	iter := json.CaseSensitiveJsonIterator()
 	for i, c := range cases {
 		var result APIResource
 		if err := iter.Unmarshal([]byte(c.input), &result); err != nil {
@@ -68,8 +68,8 @@ func TestVerbsUJsonIterUnmarshalJSON(t *testing.T) {
 	}
 }
 
-// TestUgorjiMarshalJSONWithOmit tests that we don't have regressions regarding nil and empty slices with "omit"
-func TestUgorjiMarshalJSONWithOmit(t *testing.T) {
+// TestMarshalJSONWithOmit tests that we don't have regressions regarding nil and empty slices with "omit"
+func TestMarshalJSONWithOmit(t *testing.T) {
 	cases := []struct {
 		input  LabelSelector
 		result string
@@ -80,7 +80,7 @@ func TestUgorjiMarshalJSONWithOmit(t *testing.T) {
 	}
 
 	for i, c := range cases {
-		result, err := json.Marshal(&c.input)
+		result, err := gojson.Marshal(&c.input)
 		if err != nil {
 			t.Errorf("[%d] Failed to marshal input: '%v': %v", i, c.input, err)
 		}
@@ -103,7 +103,7 @@ func TestVerbsUnmarshalJSON(t *testing.T) {
 
 	for i, c := range cases {
 		var result APIResource
-		if err := json.Unmarshal([]byte(c.input), &result); err != nil {
+		if err := gojson.Unmarshal([]byte(c.input), &result); err != nil {
 			t.Errorf("[%d] Failed to unmarshal input '%v': %v", i, c.input, err)
 		}
 		if !reflect.DeepEqual(result, c.result) {