diff --git a/main.go b/main.go
index f9dced9..580b2cb 100644
--- a/main.go
+++ b/main.go
@@ -6,7 +6,6 @@ import (
 	"errors"
 	"flag"
 	"fmt"
-	"io/ioutil"
 	"log"
 	"os"
 	"regexp"
@@ -138,7 +137,7 @@ func save(path string, kanjiList []*KanjiEntry) error {
 		return err
 	}
 
-	if err := ioutil.WriteFile(path, data, 0644); err != nil {
+	if err := os.WriteFile(path, data, 0644); err != nil {
 		return err
 	}