diff --git a/serial_unix.go b/serial_unix.go
index e025d2d..9328656 100644
--- a/serial_unix.go
+++ b/serial_unix.go
@@ -10,7 +10,7 @@ package serial
 
 import (
 	"fmt"
-	"io/ioutil"
+	"os"
 	"regexp"
 	"strings"
 	"sync"
@@ -292,7 +292,7 @@ func nativeOpen(portName string, mode *Mode) (*unixPort, error) {
 }
 
 func nativeGetPortsList() ([]string, error) {
-	files, err := ioutil.ReadDir(devFolder)
+	files, err := os.ReadDir(devFolder)
 	if err != nil {
 		return nil, err
 	}