diff --git a/config.go b/config.go
index 1389f1d..5aa8e1e 100644
--- a/config.go
+++ b/config.go
@@ -6,7 +6,6 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 )
@@ -74,7 +73,7 @@ type Updater interface {
 }
 
 func read(path string, data interface{}) error {
-	content, err := ioutil.ReadFile(filepath.Clean(path))
+	content, err := os.ReadFile(filepath.Clean(path))
 	if err != nil {
 		return fmt.Errorf("cannot read config file: %w", err)
 	}
@@ -93,7 +92,7 @@ func write(path string, data interface{}) error {
 		return fmt.Errorf("cannot generate config content: %w", err)
 	}
 
-	err = ioutil.WriteFile(path, content, 0o600)
+	err = os.WriteFile(path, content, 0o600)
 	if err != nil {
 		return fmt.Errorf("cannot write config file '%s': %w", path, err)
 	}