diff --git a/staging/src/k8s.io/component-base/config/testing/helpers.go b/staging/src/k8s.io/component-base/config/testing/helpers.go
index f7185835d46..8f1fcc8fb9b 100644
--- a/staging/src/k8s.io/component-base/config/testing/helpers.go
+++ b/staging/src/k8s.io/component-base/config/testing/helpers.go
@@ -19,7 +19,6 @@ package testing
 import (
 	"bytes"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"testing"
@@ -47,7 +46,7 @@ func RunTestsOnYAMLData(t *testing.T, tests []TestCase) {
 }
 
 func decodeYAML(t *testing.T, path string, codec runtime.Codec) runtime.Object {
-	content, err := ioutil.ReadFile(path)
+	content, err := os.ReadFile(path)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -72,7 +71,7 @@ func getCodecForGV(codecs serializer.CodecFactory, gv schema.GroupVersion) (runt
 }
 
 func matchOutputFile(t *testing.T, actual []byte, expectedFilePath string) {
-	expected, err := ioutil.ReadFile(expectedFilePath)
+	expected, err := os.ReadFile(expectedFilePath)
 	if err != nil && !os.IsNotExist(err) {
 		t.Fatalf("couldn't read test data: %v", err)
 	}
@@ -97,7 +96,7 @@ func matchOutputFile(t *testing.T, actual []byte, expectedFilePath string) {
 			if err := os.MkdirAll(filepath.Dir(expectedFilePath), 0755); err != nil {
 				t.Fatal(err)
 			}
-			if err := ioutil.WriteFile(expectedFilePath, actual, 0644); err != nil {
+			if err := os.WriteFile(expectedFilePath, actual, 0644); err != nil {
 				t.Fatal(err)
 			}
 			t.Error("wrote expected test data... verify, commit, and rerun tests")
diff --git a/staging/src/k8s.io/component-base/config/testing/roundtrip.go b/staging/src/k8s.io/component-base/config/testing/roundtrip.go
index 1233349384b..b40efee82e0 100644
--- a/staging/src/k8s.io/component-base/config/testing/roundtrip.go
+++ b/staging/src/k8s.io/component-base/config/testing/roundtrip.go
@@ -18,7 +18,7 @@ package testing
 
 import (
 	"fmt"
-	"io/ioutil"
+	"os"
 	"path/filepath"
 	"testing"
 
@@ -47,7 +47,7 @@ func GetRoundtripTestCases(t *testing.T, scheme *runtime.Scheme, codecs serializ
 
 	for gk, versions := range versionsForKind {
 		testdir := filepath.Join("testdata", gk.Kind, "roundtrip")
-		dirs, err := ioutil.ReadDir(testdir)
+		dirs, err := os.ReadDir(testdir)
 		if err != nil {
 			t.Fatalf("failed to read testdir %s: %v", testdir, err)
 		}
diff --git a/staging/src/k8s.io/component-base/configz/configz_test.go b/staging/src/k8s.io/component-base/configz/configz_test.go
index 850739df2e0..c975aad6cd2 100644
--- a/staging/src/k8s.io/component-base/configz/configz_test.go
+++ b/staging/src/k8s.io/component-base/configz/configz_test.go
@@ -17,7 +17,7 @@ limitations under the License.
 package configz
 
 import (
-	"io/ioutil"
+	"io"
 	"net/http"
 	"net/http/httptest"
 	"testing"
@@ -39,7 +39,7 @@ func TestConfigz(t *testing.T) {
 		t.Fatalf("err: %v", err)
 	}
 
-	body, err := ioutil.ReadAll(resp.Body)
+	body, err := io.ReadAll(resp.Body)
 	if err != nil {
 		t.Fatalf("err: %v", err)
 	}
@@ -53,7 +53,7 @@ func TestConfigz(t *testing.T) {
 		t.Fatalf("err: %v", err)
 	}
 
-	body, err = ioutil.ReadAll(resp.Body)
+	body, err = io.ReadAll(resp.Body)
 	if err != nil {
 		t.Fatalf("err: %v", err)
 	}
@@ -67,7 +67,7 @@ func TestConfigz(t *testing.T) {
 		t.Fatalf("err: %v", err)
 	}
 
-	body, err = ioutil.ReadAll(resp.Body)
+	body, err = io.ReadAll(resp.Body)
 	if err != nil {
 		t.Fatalf("err: %v", err)
 	}
diff --git a/staging/src/k8s.io/component-base/metrics/http_test.go b/staging/src/k8s.io/component-base/metrics/http_test.go
index d393b352f39..fe4a50ea2d5 100644
--- a/staging/src/k8s.io/component-base/metrics/http_test.go
+++ b/staging/src/k8s.io/component-base/metrics/http_test.go
@@ -17,7 +17,7 @@ limitations under the License.
 package metrics
 
 import (
-	"io/ioutil"
+	"io"
 	"net/http"
 	"net/http/httptest"
 	"testing"
@@ -57,7 +57,7 @@ func TestResetHandler(t *testing.T) {
 			}
 			rec := httptest.NewRecorder()
 			resetHandler.ServeHTTP(rec, req)
-			body, err := ioutil.ReadAll(rec.Result().Body)
+			body, err := io.ReadAll(rec.Result().Body)
 			if err != nil {
 				t.Fatalf("Error reading response body")
 			}