diff --git a/integration/container_update_resources_test.go b/integration/container_update_resources_test.go
index 5067b54d2..b7af4d869 100644
--- a/integration/container_update_resources_test.go
+++ b/integration/container_update_resources_test.go
@@ -21,7 +21,6 @@ package integration
 
 import (
 	"bytes"
-	"io/ioutil"
 	"os"
 	"strings"
 	"testing"
@@ -116,7 +115,7 @@ func getCgroupMemoryLimitForTask(t *testing.T, task containerd.Task) uint64 {
 func isSwapLikelyEnabled() bool {
 	// Check whether swap is enabled.
 	swapFile := "/proc/swaps"
-	swapData, err := ioutil.ReadFile(swapFile)
+	swapData, err := os.ReadFile(swapFile)
 	if err != nil {
 		// We can't read the file or it doesn't exist, assume we don't have swap.
 		return false
diff --git a/integration/volume_copy_up_test.go b/integration/volume_copy_up_test.go
index 664f4de35..1e0e20730 100644
--- a/integration/volume_copy_up_test.go
+++ b/integration/volume_copy_up_test.go
@@ -18,7 +18,6 @@ package integration
 
 import (
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	goruntime "runtime"
@@ -76,7 +75,7 @@ func TestVolumeCopyUp(t *testing.T) {
 	assert.Equal(t, len(volumePaths), 1, "expected exactly 1 volume")
 
 	testFilePath := filepath.Join(volumePaths[0], "test_file")
-	contents, err := ioutil.ReadFile(testFilePath)
+	contents, err := os.ReadFile(testFilePath)
 	require.NoError(t, err)
 	assert.Equal(t, "test_content\n", string(contents))
 
@@ -89,7 +88,7 @@ func TestVolumeCopyUp(t *testing.T) {
 	require.NoError(t, err)
 
 	t.Logf("Check whether host path of the volume is updated")
-	contents, err = ioutil.ReadFile(testFilePath)
+	contents, err = os.ReadFile(testFilePath)
 	require.NoError(t, err)
 	assert.Equal(t, "new_content\n", string(contents))
 }
@@ -159,7 +158,7 @@ func getHostPathForVolumes(criRoot, containerID string) ([]string, error) {
 		return nil, err
 	}
 
-	volumes, err := ioutil.ReadDir(hostPath)
+	volumes, err := os.ReadDir(hostPath)
 	if err != nil {
 		return nil, err
 	}
diff --git a/runtime/v2/runc/manager/manager_linux.go b/runtime/v2/runc/manager/manager_linux.go
index 39e97e9f6..a8ac45bfc 100644
--- a/runtime/v2/runc/manager/manager_linux.go
+++ b/runtime/v2/runc/manager/manager_linux.go
@@ -20,7 +20,7 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"os"
 	"path/filepath"
 	goruntime "runtime"
@@ -196,7 +196,7 @@ func (manager) Start(ctx context.Context, id string, opts shim.StartOpts) (_ str
 	}()
 	// make sure to wait after start
 	go cmd.Wait()
-	if data, err := ioutil.ReadAll(os.Stdin); err == nil {
+	if data, err := io.ReadAll(os.Stdin); err == nil {
 		if len(data) > 0 {
 			var any ptypes.Any
 			if err := proto.Unmarshal(data, &any); err != nil {