diff --git a/js/async-programming/parallel/parallel-limit-version-2.ts b/js/async-programming/parallel/parallel-limit-version-2.ts
index dd32446..d46b7ed 100644
--- a/js/async-programming/parallel/parallel-limit-version-2.ts
+++ b/js/async-programming/parallel/parallel-limit-version-2.ts
@@ -1,5 +1,3 @@
-import { delay } from '../util/delay';
-
 type AsyncFunction = () => Promise<unknown>;
 const limitOf = (max: number) => {
   const mq: AsyncFunction[] = [];
@@ -26,6 +24,8 @@ const limitOf = (max: number) => {
 
 // * ================================================================================
 
+import { delay } from '../util/delay';
+
 const limit = limitOf(2);
 
 console.warn('start');
diff --git a/js/async-programming/parallel/parallel-limit.ts b/js/async-programming/parallel/parallel-limit.ts
index 614c20a..7564769 100644
--- a/js/async-programming/parallel/parallel-limit.ts
+++ b/js/async-programming/parallel/parallel-limit.ts
@@ -1,5 +1,3 @@
-import { delay } from '../util/delay';
-
 type AsyncFunction = () => Promise<unknown>;
 
 const limitOf = (max: number) => {
@@ -20,6 +18,8 @@ const limitOf = (max: number) => {
 
 // * ================================================================================
 
+import { delay } from '../util/delay';
+
 const limit = limitOf(2);
 
 for (let i = 1; i < 10; i++) {