diff --git a/cmd/webhook/start.go b/cmd/webhook/start.go
index 60be464cf..d1973d575 100644
--- a/cmd/webhook/start.go
+++ b/cmd/webhook/start.go
@@ -4,7 +4,7 @@ import (
 	"crypto/tls"
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"net/http"
 
 	"github.com/fsnotify/fsnotify"
@@ -55,7 +55,7 @@ func init() {
 func serve(w http.ResponseWriter, r *http.Request, admit admitHandler) {
 	var body []byte
 	if r.Body != nil {
-		if data, err := ioutil.ReadAll(r.Body); err == nil {
+		if data, err := io.ReadAll(r.Body); err == nil {
 			body = data
 		}
 	}
diff --git a/pkg/daemon/daemon.go b/pkg/daemon/daemon.go
index 07fcb7dd9..c7087a75b 100644
--- a/pkg/daemon/daemon.go
+++ b/pkg/daemon/daemon.go
@@ -6,7 +6,6 @@ import (
 	"encoding/json"
 	"flag"
 	"fmt"
-	"io/ioutil"
 	"math/rand"
 	"os"
 	"os/exec"
@@ -1056,7 +1055,7 @@ func tryCreateSwitchdevUdevRule(nodeState *sriovnetworkv1.SriovNetworkNodeState)
 		}
 	}
 
-	oldContent, err := ioutil.ReadFile(filePath)
+	oldContent, err := os.ReadFile(filePath)
 	// if oldContent = newContent, don't do anything
 	if err == nil && newContent == string(oldContent) {
 		return nil
@@ -1069,7 +1068,7 @@ func tryCreateSwitchdevUdevRule(nodeState *sriovnetworkv1.SriovNetworkNodeState)
 
 	// if the file does not exist or if oldContent != newContent
 	// write to file and create it if it doesn't exist
-	err = ioutil.WriteFile(filePath, []byte(newContent), 0664)
+	err = os.WriteFile(filePath, []byte(newContent), 0664)
 	if err != nil {
 		glog.Errorf("tryCreateSwitchdevUdevRule(): fail to write file: %v", err)
 		return err
@@ -1116,7 +1115,7 @@ func tryCreateNMUdevRule() error {
 	// add NM udev rules for renaming VF rep
 	newContent = newContent + "SUBSYSTEM==\"net\", ACTION==\"add|move\", ATTRS{phys_switch_id}!=\"\", ATTR{phys_port_name}==\"pf*vf*\", ENV{NM_UNMANAGED}=\"1\"\n"
 
-	oldContent, err := ioutil.ReadFile(filePath)
+	oldContent, err := os.ReadFile(filePath)
 	// if oldContent = newContent, don't do anything
 	if err == nil && newContent == string(oldContent) {
 		return nil
@@ -1135,7 +1134,7 @@ func tryCreateNMUdevRule() error {
 
 	// if the file does not exist or if oldContent != newContent
 	// write to file and create it if it doesn't exist
-	err = ioutil.WriteFile(filePath, []byte(newContent), 0666)
+	err = os.WriteFile(filePath, []byte(newContent), 0666)
 	if err != nil {
 		glog.Errorf("tryCreateNMUdevRule(): fail to write file: %v", err)
 		return err
diff --git a/pkg/daemon/daemon_test.go b/pkg/daemon/daemon_test.go
index c23a7b6dd..1aac8d43d 100644
--- a/pkg/daemon/daemon_test.go
+++ b/pkg/daemon/daemon_test.go
@@ -3,7 +3,7 @@ package daemon
 import (
 	"context"
 	"flag"
-	"io/ioutil"
+	"os"
 	"path"
 	"testing"
 
@@ -321,7 +321,7 @@ func updateSriovNetworkNodeState(c snclientset.Interface, nodeState *sriovnetwor
 
 func assertFileContents(path, contents string) {
 	Eventually(func() (string, error) {
-		ret, err := ioutil.ReadFile(path)
+		ret, err := os.ReadFile(path)
 		return string(ret), err
 	}, "10s").WithOffset(1).Should(Equal(contents))
 }
diff --git a/pkg/plugins/k8s/k8s_plugin.go b/pkg/plugins/k8s/k8s_plugin.go
index bd10408ff..cbe48153f 100644
--- a/pkg/plugins/k8s/k8s_plugin.go
+++ b/pkg/plugins/k8s/k8s_plugin.go
@@ -2,7 +2,6 @@ package k8s
 
 import (
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path"
 	"strings"
@@ -346,7 +345,7 @@ func (p *K8sPlugin) getSwitchDevSystemServices() []*service.Service {
 }
 
 func (p *K8sPlugin) isSwitchdevScriptNeedUpdate(scriptObj *service.ScriptManifestFile) (needUpdate bool, err error) {
-	data, err := ioutil.ReadFile(path.Join(chroot, scriptObj.Path))
+	data, err := os.ReadFile(path.Join(chroot, scriptObj.Path))
 	if err != nil {
 		if !os.IsNotExist(err) {
 			return false, err
@@ -457,7 +456,7 @@ func (p *K8sPlugin) updateSwitchdevService() error {
 	}
 
 	if p.updateTarget.switchdevBeforeNMRunScript {
-		err := ioutil.WriteFile(path.Join(chroot, p.switchdevBeforeNMRunScript.Path),
+		err := os.WriteFile(path.Join(chroot, p.switchdevBeforeNMRunScript.Path),
 			[]byte(p.switchdevBeforeNMRunScript.Contents.Inline), 0755)
 		if err != nil {
 			return err
@@ -465,7 +464,7 @@ func (p *K8sPlugin) updateSwitchdevService() error {
 	}
 
 	if p.updateTarget.switchdevAfterNMRunScript {
-		err := ioutil.WriteFile(path.Join(chroot, p.switchdevAfterNMRunScript.Path),
+		err := os.WriteFile(path.Join(chroot, p.switchdevAfterNMRunScript.Path),
 			[]byte(p.switchdevAfterNMRunScript.Contents.Inline), 0755)
 		if err != nil {
 			return err
@@ -473,7 +472,7 @@ func (p *K8sPlugin) updateSwitchdevService() error {
 	}
 
 	if p.updateTarget.switchdevUdevScript {
-		err := ioutil.WriteFile(path.Join(chroot, p.switchdevUdevScript.Path),
+		err := os.WriteFile(path.Join(chroot, p.switchdevUdevScript.Path),
 			[]byte(p.switchdevUdevScript.Contents.Inline), 0755)
 		if err != nil {
 			return err
diff --git a/pkg/render/render.go b/pkg/render/render.go
index 59c215387..394553a07 100644
--- a/pkg/render/render.go
+++ b/pkg/render/render.go
@@ -4,7 +4,6 @@ import (
 	"bytes"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"sort"
@@ -120,7 +119,7 @@ func renderTemplate(path string, d *RenderData) (*bytes.Buffer, error) {
 	tmpl.Funcs(template.FuncMap{"getOr": getOr, "isSet": isSet})
 	tmpl.Funcs(sprig.TxtFuncMap())
 
-	source, err := ioutil.ReadFile(path)
+	source, err := os.ReadFile(path)
 	if err != nil {
 		return nil, errors.Wrapf(err, "failed to read manifest %s", path)
 	}
diff --git a/pkg/service/service_manager.go b/pkg/service/service_manager.go
index ddd9a1f4e..6fef6fe50 100644
--- a/pkg/service/service_manager.go
+++ b/pkg/service/service_manager.go
@@ -1,7 +1,6 @@
 package service
 
 import (
-	"io/ioutil"
 	"os"
 	"os/exec"
 	"path"
@@ -43,7 +42,7 @@ func (sm *serviceManager) IsServiceExist(servicePath string) (bool, error) {
 
 // ReadService read service from given path
 func (sm *serviceManager) ReadService(servicePath string) (*Service, error) {
-	data, err := ioutil.ReadFile(path.Join(sm.chroot, servicePath))
+	data, err := os.ReadFile(path.Join(sm.chroot, servicePath))
 	if err != nil {
 		return nil, err
 	}
@@ -58,7 +57,7 @@ func (sm *serviceManager) ReadService(servicePath string) (*Service, error) {
 // EnableService creates service file and enables it with systemctl enable
 func (sm *serviceManager) EnableService(service *Service) error {
 	// Write service file
-	err := ioutil.WriteFile(path.Join(sm.chroot, service.Path), []byte(service.Content), 0644)
+	err := os.WriteFile(path.Join(sm.chroot, service.Path), []byte(service.Content), 0644)
 	if err != nil {
 		return err
 	}
diff --git a/pkg/service/utils.go b/pkg/service/utils.go
index f9dc28f85..258188092 100644
--- a/pkg/service/utils.go
+++ b/pkg/service/utils.go
@@ -1,7 +1,8 @@
 package service
 
 import (
-	"io/ioutil"
+	"io"
+	"os"
 	"strings"
 
 	"github.com/coreos/go-systemd/v22/unit"
@@ -55,7 +56,7 @@ OUTER:
 		newServiceOptions = append(newServiceOptions, opt)
 	}
 
-	data, err := ioutil.ReadAll(unit.Serialize(newServiceOptions))
+	data, err := io.ReadAll(unit.Serialize(newServiceOptions))
 	if err != nil {
 		return nil, err
 	}
@@ -84,7 +85,7 @@ OUTER:
 		serviceOptions = append(serviceOptions, appendOpt)
 	}
 
-	data, err := ioutil.ReadAll(unit.Serialize(serviceOptions))
+	data, err := io.ReadAll(unit.Serialize(serviceOptions))
 	if err != nil {
 		return nil, err
 	}
@@ -98,7 +99,7 @@ OUTER:
 
 // ReadServiceInjectionManifestFile reads service injection file
 func ReadServiceInjectionManifestFile(path string) (*Service, error) {
-	data, err := ioutil.ReadFile(path)
+	data, err := os.ReadFile(path)
 	if err != nil {
 		return nil, err
 	}
@@ -117,7 +118,7 @@ func ReadServiceInjectionManifestFile(path string) (*Service, error) {
 
 // ReadServiceManifestFile reads service file
 func ReadServiceManifestFile(path string) (*Service, error) {
-	data, err := ioutil.ReadFile(path)
+	data, err := os.ReadFile(path)
 	if err != nil {
 		return nil, err
 	}
@@ -136,7 +137,7 @@ func ReadServiceManifestFile(path string) (*Service, error) {
 
 // ReadScriptManifestFile reads script file
 func ReadScriptManifestFile(path string) (*ScriptManifestFile, error) {
-	data, err := ioutil.ReadFile(path)
+	data, err := os.ReadFile(path)
 	if err != nil {
 		return nil, err
 	}
diff --git a/pkg/systemd/systemd.go b/pkg/systemd/systemd.go
index 127b897be..03dc6ad2a 100644
--- a/pkg/systemd/systemd.go
+++ b/pkg/systemd/systemd.go
@@ -18,7 +18,6 @@ package systemd
 import (
 	"bytes"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"strings"
 
@@ -56,7 +55,7 @@ type SriovResult struct {
 }
 
 func ReadConfFile() (spec *SriovConfig, err error) {
-	rawConfig, err := ioutil.ReadFile(SriovSystemdConfigPath)
+	rawConfig, err := os.ReadFile(SriovSystemdConfigPath)
 	if err != nil {
 		return nil, err
 	}
@@ -101,7 +100,7 @@ func WriteConfFile(newState *sriovnetworkv1.SriovNetworkNodeState, unsupportedNi
 		}
 	}
 
-	oldContent, err := ioutil.ReadFile(SriovHostSystemdConfigPath)
+	oldContent, err := os.ReadFile(SriovHostSystemdConfigPath)
 	if err != nil {
 		glog.Errorf("WriteConfFile(): fail to read file: %v", err)
 		return false, err
@@ -128,7 +127,7 @@ func WriteConfFile(newState *sriovnetworkv1.SriovNetworkNodeState, unsupportedNi
 	glog.V(2).Infof("WriteConfFile(): previews configuration is not equal: old config:\n%s\nnew config:\n%s\n", string(oldContent), string(newContent))
 
 	glog.V(2).Infof("WriteConfFile(): write '%s' to %s", newContent, SriovHostSystemdConfigPath)
-	err = ioutil.WriteFile(SriovHostSystemdConfigPath, newContent, 0644)
+	err = os.WriteFile(SriovHostSystemdConfigPath, newContent, 0644)
 	if err != nil {
 		glog.Errorf("WriteConfFile(): fail to write file: %v", err)
 		return false, err
@@ -167,7 +166,7 @@ func WriteSriovResult(result *SriovResult) error {
 	}
 
 	glog.V(2).Infof("WriteSriovResult(): write '%s' to %s", string(out), SriovSystemdResultPath)
-	err = ioutil.WriteFile(SriovSystemdResultPath, out, 0644)
+	err = os.WriteFile(SriovSystemdResultPath, out, 0644)
 	if err != nil {
 		glog.Errorf("WriteSriovResult(): failed to write sriov result file on path %s: %v", SriovSystemdResultPath, err)
 		return err
@@ -188,7 +187,7 @@ func ReadSriovResult() (*SriovResult, error) {
 		}
 	}
 
-	rawConfig, err := ioutil.ReadFile(SriovHostSystemdResultPath)
+	rawConfig, err := os.ReadFile(SriovHostSystemdResultPath)
 	if err != nil {
 		glog.Errorf("ReadSriovResult(): failed to read sriov result file on path %s: %v", SriovHostSystemdResultPath, err)
 		return nil, err
@@ -224,7 +223,7 @@ func WriteSriovSupportedNics() error {
 		rawNicList = append(rawNicList, []byte(fmt.Sprintf("%s\n", line))...)
 	}
 
-	err = ioutil.WriteFile(sriovHostSystemdSupportedNicPath, rawNicList, 0644)
+	err = os.WriteFile(sriovHostSystemdSupportedNicPath, rawNicList, 0644)
 	if err != nil {
 		glog.Errorf("WriteSriovSupportedNics(): failed to write sriov supporter nics ids file on path %s: %v", sriovHostSystemdSupportedNicPath, err)
 		return err
@@ -245,7 +244,7 @@ func ReadSriovSupportedNics() ([]string, error) {
 		}
 	}
 
-	rawConfig, err := ioutil.ReadFile(sriovSystemdSupportedNicPath)
+	rawConfig, err := os.ReadFile(sriovSystemdSupportedNicPath)
 	if err != nil {
 		glog.Errorf("ReadSriovSupportedNics(): failed to read sriov supporter nics file on path %s: %v", sriovSystemdSupportedNicPath, err)
 		return nil, err
diff --git a/pkg/utils/driver.go b/pkg/utils/driver.go
index eb8e500c9..c892aaf9b 100644
--- a/pkg/utils/driver.go
+++ b/pkg/utils/driver.go
@@ -2,7 +2,6 @@ package utils
 
 import (
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 
@@ -24,7 +23,7 @@ func Unbind(pciAddr string) error {
 	}
 
 	filePath := filepath.Join(sysBusPciDrivers, driver, "unbind")
-	err := ioutil.WriteFile(filePath, []byte(pciAddr), os.ModeAppend)
+	err := os.WriteFile(filePath, []byte(pciAddr), os.ModeAppend)
 	if err != nil {
 		glog.Errorf("Unbind(): fail to unbind driver for device %s. %s", pciAddr, err)
 		return err
@@ -49,13 +48,13 @@ func BindDpdkDriver(pciAddr, driver string) error {
 	}
 
 	driverOverridePath := filepath.Join(sysBusPciDevices, pciAddr, "driver_override")
-	err := ioutil.WriteFile(driverOverridePath, []byte(driver), os.ModeAppend)
+	err := os.WriteFile(driverOverridePath, []byte(driver), os.ModeAppend)
 	if err != nil {
 		glog.Errorf("BindDpdkDriver(): fail to write driver_override for device %s %s", driver, err)
 		return err
 	}
 	bindPath := filepath.Join(sysBusPciDrivers, driver, "bind")
-	err = ioutil.WriteFile(bindPath, []byte(pciAddr), os.ModeAppend)
+	err = os.WriteFile(bindPath, []byte(pciAddr), os.ModeAppend)
 	if err != nil {
 		glog.Errorf("BindDpdkDriver(): fail to bind driver for device %s: %s", pciAddr, err)
 		_, err := os.Readlink(filepath.Join(sysBusPciDevices, pciAddr, "iommu_group"))
@@ -65,7 +64,7 @@ func BindDpdkDriver(pciAddr, driver string) error {
 		}
 		return err
 	}
-	err = ioutil.WriteFile(driverOverridePath, []byte(""), os.ModeAppend)
+	err = os.WriteFile(driverOverridePath, []byte(""), os.ModeAppend)
 	if err != nil {
 		glog.Errorf("BindDpdkDriver(): fail to clear driver_override for device %s: %s", pciAddr, err)
 		return err
@@ -90,12 +89,12 @@ func BindDefaultDriver(pciAddr string) error {
 	}
 
 	driverOverridePath := filepath.Join(sysBusPciDevices, pciAddr, "driver_override")
-	err := ioutil.WriteFile(driverOverridePath, []byte("\x00"), os.ModeAppend)
+	err := os.WriteFile(driverOverridePath, []byte("\x00"), os.ModeAppend)
 	if err != nil {
 		glog.Errorf("BindDefaultDriver(): fail to write driver_override for device %s: %s", pciAddr, err)
 		return err
 	}
-	err = ioutil.WriteFile(sysBusPciDriversProbe, []byte(pciAddr), os.ModeAppend)
+	err = os.WriteFile(sysBusPciDriversProbe, []byte(pciAddr), os.ModeAppend)
 	if err != nil {
 		glog.Errorf("BindDefaultDriver(): fail to bind driver for device %s: %s", pciAddr, err)
 		return err
diff --git a/pkg/utils/sriov.go b/pkg/utils/sriov.go
index c18122140..4fd993a5c 100644
--- a/pkg/utils/sriov.go
+++ b/pkg/utils/sriov.go
@@ -19,7 +19,6 @@ import (
 	"bytes"
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
 	"os"
 
 	"github.com/golang/glog"
@@ -125,7 +124,7 @@ func WriteSwitchdevConfFile(newState *sriovnetworkv1.SriovNetworkNodeState) (upd
 			return
 		}
 	}
-	oldContent, err := ioutil.ReadFile(SriovHostSwitchDevConfPath)
+	oldContent, err := os.ReadFile(SriovHostSwitchDevConfPath)
 	if err != nil {
 		glog.Errorf("WriteSwitchdevConfFile(): fail to read file: %v", err)
 		return
@@ -145,7 +144,7 @@ func WriteSwitchdevConfFile(newState *sriovnetworkv1.SriovNetworkNodeState) (upd
 	}
 	update = true
 	glog.V(2).Infof("WriteSwitchdevConfFile(): write '%s' to switchdev.conf", newContent)
-	err = ioutil.WriteFile(SriovHostSwitchDevConfPath, newContent, 0644)
+	err = os.WriteFile(SriovHostSwitchDevConfPath, newContent, 0644)
 	if err != nil {
 		glog.Errorf("WriteSwitchdevConfFile(): fail to write file: %v", err)
 		return
diff --git a/pkg/utils/utils.go b/pkg/utils/utils.go
index 63505b79d..3688c8239 100644
--- a/pkg/utils/utils.go
+++ b/pkg/utils/utils.go
@@ -4,7 +4,6 @@ import (
 	"bytes"
 	"errors"
 	"fmt"
-	"io/ioutil"
 	"math/rand"
 	"net"
 	"os"
@@ -423,12 +422,12 @@ func setSriovNumVfs(pciAddr string, numVfs int) error {
 	glog.V(2).Infof("setSriovNumVfs(): set NumVfs for device %s to %d", pciAddr, numVfs)
 	numVfsFilePath := filepath.Join(sysBusPciDevices, pciAddr, numVfsFile)
 	bs := []byte(strconv.Itoa(numVfs))
-	err := ioutil.WriteFile(numVfsFilePath, []byte("0"), os.ModeAppend)
+	err := os.WriteFile(numVfsFilePath, []byte("0"), os.ModeAppend)
 	if err != nil {
 		glog.Warningf("setSriovNumVfs(): fail to reset NumVfs file %s", numVfsFilePath)
 		return err
 	}
-	err = ioutil.WriteFile(numVfsFilePath, bs, os.ModeAppend)
+	err = os.WriteFile(numVfsFilePath, bs, os.ModeAppend)
 	if err != nil {
 		glog.Warningf("setSriovNumVfs(): fail to set NumVfs file %s", numVfsFilePath)
 		return err
@@ -454,7 +453,7 @@ func setNetdevMTU(pciAddr string, mtu int) error {
 		}
 		mtuFile := "net/" + ifaceName[0] + "/mtu"
 		mtuFilePath := filepath.Join(sysBusPciDevices, pciAddr, mtuFile)
-		return ioutil.WriteFile(mtuFilePath, []byte(strconv.Itoa(mtu)), os.ModeAppend)
+		return os.WriteFile(mtuFilePath, []byte(strconv.Itoa(mtu)), os.ModeAppend)
 	}, backoff.WithMaxRetries(b, 10))
 	if err != nil {
 		glog.Warningf("setNetdevMTU(): fail to write mtu file after retrying: %v", err)
@@ -498,7 +497,7 @@ func getNetdevMTU(pciAddr string) int {
 	}
 	mtuFile := "net/" + ifaceName + "/mtu"
 	mtuFilePath := filepath.Join(sysBusPciDevices, pciAddr, mtuFile)
-	data, err := ioutil.ReadFile(mtuFilePath)
+	data, err := os.ReadFile(mtuFilePath)
 	if err != nil {
 		glog.Warningf("getNetdevMTU(): fail to read mtu file %s", mtuFilePath)
 		return 0
@@ -514,7 +513,7 @@ func getNetdevMTU(pciAddr string) int {
 func getNetDevMac(ifaceName string) string {
 	glog.V(2).Infof("getNetDevMac(): get Mac for device %s", ifaceName)
 	macFilePath := filepath.Join(sysClassNet, ifaceName, "address")
-	data, err := ioutil.ReadFile(macFilePath)
+	data, err := os.ReadFile(macFilePath)
 	if err != nil {
 		glog.Warningf("getNetDevMac(): fail to read Mac file %s", macFilePath)
 		return ""
@@ -526,7 +525,7 @@ func getNetDevMac(ifaceName string) string {
 func getNetDevLinkSpeed(ifaceName string) string {
 	glog.V(2).Infof("getNetDevLinkSpeed(): get LinkSpeed for device %s", ifaceName)
 	speedFilePath := filepath.Join(sysClassNet, ifaceName, "speed")
-	data, err := ioutil.ReadFile(speedFilePath)
+	data, err := os.ReadFile(speedFilePath)
 	if err != nil {
 		glog.Warningf("getNetDevLinkSpeed(): fail to read Link Speed file %s", speedFilePath)
 		return ""
@@ -728,7 +727,7 @@ func GetNicSriovMode(pciAddress string) (string, error) {
 
 func GetPhysSwitchID(name string) (string, error) {
 	swIDFile := filepath.Join(sysClassNet, name, "phys_switch_id")
-	physSwitchID, err := ioutil.ReadFile(swIDFile)
+	physSwitchID, err := os.ReadFile(swIDFile)
 	if err != nil {
 		return "", err
 	}
@@ -740,7 +739,7 @@ func GetPhysSwitchID(name string) (string, error) {
 
 func GetPhysPortName(name string) (string, error) {
 	devicePortNameFile := filepath.Join(sysClassNet, name, "phys_port_name")
-	physPortName, err := ioutil.ReadFile(devicePortNameFile)
+	physPortName, err := os.ReadFile(devicePortNameFile)
 	if err != nil {
 		return "", err
 	}
diff --git a/pkg/utils/utils_virtual.go b/pkg/utils/utils_virtual.go
index f2e9eb821..193e67d53 100644
--- a/pkg/utils/utils_virtual.go
+++ b/pkg/utils/utils_virtual.go
@@ -5,7 +5,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"strconv"
@@ -382,7 +381,7 @@ func tryToGetVirtualInterfaceName(pciAddr string) string {
 		return ""
 	}
 
-	fInfos, err := ioutil.ReadDir(netDir[0])
+	fInfos, err := os.ReadDir(netDir[0])
 	if err != nil {
 		glog.Warningf("tryToGetVirtualInterfaceName(): failed to read net directory %s: %q", netDir, err)
 		return ""
diff --git a/test/util/fakefilesystem/fakefilesystem.go b/test/util/fakefilesystem/fakefilesystem.go
index e80e2b995..36524aaa2 100644
--- a/test/util/fakefilesystem/fakefilesystem.go
+++ b/test/util/fakefilesystem/fakefilesystem.go
@@ -2,7 +2,6 @@ package fakefilesystem
 
 import (
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path"
 )
@@ -24,7 +23,7 @@ type FS struct {
 // ````
 func (f *FS) Use() (string, func(), error) {
 	// create the new fake fs root dir in /tmp/sriov...
-	rootDir, err := ioutil.TempDir("", "sriov-operator")
+	rootDir, err := os.MkdirTemp("", "sriov-operator")
 	if err != nil {
 		return "", nil, fmt.Errorf("error creating fake root dir: %w", err)
 	}
diff --git a/test/util/netns/netns.go b/test/util/netns/netns.go
index 7b16be14c..8d7b84380 100644
--- a/test/util/netns/netns.go
+++ b/test/util/netns/netns.go
@@ -2,7 +2,6 @@ package netns
 
 import (
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"runtime"
@@ -97,7 +96,7 @@ func setVfNetNs(pfPciAddr string, targetNetNs netns.NsHandle) error {
 			err.Error())
 	}
 
-	data, err := ioutil.ReadFile(numVfsFile)
+	data, err := os.ReadFile(numVfsFile)
 	if err != nil {
 		return fmt.Errorf("setVfNetNs(): failed to read '%s' from device with PCI address  '%s': '%s", numVfsFile, pfPciAddr,
 			err.Error())
@@ -119,7 +118,7 @@ func setVfNetNs(pfPciAddr string, targetNetNs netns.NsHandle) error {
 			continue
 		}
 
-		fInfos, err := ioutil.ReadDir(vfNetDir)
+		fInfos, err := os.ReadDir(vfNetDir)
 		if err != nil {
 			return fmt.Errorf("setVfNetNs(): failed to read '%s': '%s'", vfNetDir, err.Error())
 		}
@@ -149,7 +148,7 @@ func setLinkNetNs(pciAddr string, targetNetNs netns.NsHandle) error {
 	if _, err := os.Lstat(netDir); err != nil {
 		return fmt.Errorf("setLinkNetNs(): unable to find directory '%s': '%s'", netDir, err.Error())
 	}
-	fInfos, err := ioutil.ReadDir(netDir)
+	fInfos, err := os.ReadDir(netDir)
 	if err != nil {
 		return fmt.Errorf("setLinkNetNs(): failed to read '%s': '%s'", netDir, err.Error())
 	}