diff --git a/gojap.go b/gojap.go
index 43564ef..84ec8a5 100644
--- a/gojap.go
+++ b/gojap.go
@@ -7,7 +7,7 @@ import (
 )
 
 var vmPool = sync.Pool{
-	New: func() interface{} {
+	New: func() any {
 		return goja.New()
 	},
 }
diff --git a/gojap_test.go b/gojap_test.go
index 6fed3c7..31f7cb7 100644
--- a/gojap_test.go
+++ b/gojap_test.go
@@ -23,7 +23,7 @@ func TestRunStringParallel(t *testing.T) {
 	e := New()
 
 	wg := sync.WaitGroup{}
-	for i := 0; i < 20; i++ {
+	for i := range 20 {
 		wg.Add(1)
 		i := i
 		go func() {