diff --git a/test/e2e_node/plugins/gcp-credential-provider/main.go b/test/e2e_node/plugins/gcp-credential-provider/main.go
index 2f570e8681d..58cdbda3636 100644
--- a/test/e2e_node/plugins/gcp-credential-provider/main.go
+++ b/test/e2e_node/plugins/gcp-credential-provider/main.go
@@ -20,7 +20,6 @@ import (
 	"encoding/json"
 	"errors"
 	"io"
-	"io/ioutil"
 	"net/http"
 	"os"
 	"time"
@@ -46,7 +45,7 @@ func getCredentials(tokenEndpoint string, r io.Reader, w io.Writer) error {
 		tokenEndpoint: tokenEndpoint,
 	}
 
-	data, err := ioutil.ReadAll(r)
+	data, err := io.ReadAll(r)
 	if err != nil {
 		return err
 	}
diff --git a/test/e2e_node/plugins/gcp-credential-provider/provider.go b/test/e2e_node/plugins/gcp-credential-provider/provider.go
index 3bbe9a04312..cef0fdd7d79 100644
--- a/test/e2e_node/plugins/gcp-credential-provider/provider.go
+++ b/test/e2e_node/plugins/gcp-credential-provider/provider.go
@@ -22,7 +22,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"net/http"
 
 	credentialproviderv1 "k8s.io/kubelet/pkg/apis/credentialprovider/v1"
@@ -108,7 +107,7 @@ func readURL(url string, client *http.Client) (body []byte, err error) {
 	}
 
 	limitedReader := &io.LimitedReader{R: resp.Body, N: maxReadLength}
-	contents, err := ioutil.ReadAll(limitedReader)
+	contents, err := io.ReadAll(limitedReader)
 	if err != nil {
 		return nil, err
 	}
diff --git a/test/integration/scheduler_perf/scheduler_perf_test.go b/test/integration/scheduler_perf/scheduler_perf_test.go
index e560f5a8a03..80f2c9ce4fc 100644
--- a/test/integration/scheduler_perf/scheduler_perf_test.go
+++ b/test/integration/scheduler_perf/scheduler_perf_test.go
@@ -22,7 +22,6 @@ import (
 	"flag"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"math"
 	"os"
 	"path"
@@ -598,7 +597,7 @@ func initTestOutput(tb testing.TB) io.Writer {
 			if err := fileOutput.Close(); err != nil {
 				tb.Fatalf("close log file: %v", err)
 			}
-			log, err := ioutil.ReadFile(logfileName)
+			log, err := os.ReadFile(logfileName)
 			if err != nil {
 				tb.Fatalf("read log file: %v", err)
 			}