diff --git a/src/uploader/test/__snapshots__/index.spec.ts.snap b/src/uploader/test/__snapshots__/index.spec.ts.snap
index 52809c25f..2da10484f 100644
--- a/src/uploader/test/__snapshots__/index.spec.ts.snap
+++ b/src/uploader/test/__snapshots__/index.spec.ts.snap
@@ -7,7 +7,7 @@ exports[`delete preview image 1`] = `
       <div class="van-image van-uploader__preview-image"
            style="width: 30px; height: 30px;"
       >
-        <img src="https://img01.yzcdn.cn/vant/cat.jpeg"
+        <img src="https://img.yzcdn.cn/vant/cat.jpeg"
              class="van-image__img"
              style="object-fit: cover;"
         >
@@ -98,7 +98,7 @@ exports[`image-fit prop 1`] = `
   <div class="van-uploader__wrapper">
     <div class="van-uploader__preview">
       <div class="van-image van-uploader__preview-image">
-        <img src="https://img01.yzcdn.cn/vant/cat.jpeg"
+        <img src="https://img.yzcdn.cn/vant/cat.jpeg"
              class="van-image__img"
              style="object-fit: contain;"
         >
@@ -129,7 +129,7 @@ exports[`preview-cover slot 1`] = `
   <div class="van-uploader__wrapper">
     <div class="van-uploader__preview">
       <div class="van-image van-uploader__preview-image">
-        <img src="https://img01.yzcdn.cn/vant/cat.jpeg"
+        <img src="https://img.yzcdn.cn/vant/cat.jpeg"
              class="van-image__img"
              style="object-fit: cover;"
         >
@@ -148,7 +148,7 @@ exports[`preview-cover slot 1`] = `
     </div>
     <div class="van-uploader__preview">
       <div class="van-image van-uploader__preview-image">
-        <img src="https://img01.yzcdn.cn/vant/cat.jpeg"
+        <img src="https://img.yzcdn.cn/vant/cat.jpeg"
              class="van-image__img"
              style="object-fit: cover;"
         >
@@ -214,7 +214,7 @@ exports[`render preview image 1`] = `
   <div class="van-uploader__wrapper">
     <div class="van-uploader__preview">
       <div class="van-image van-uploader__preview-image">
-        <img src="https://img01.yzcdn.cn/vant/cat.jpeg"
+        <img src="https://img.yzcdn.cn/vant/cat.jpeg"
              class="van-image__img"
              style="object-fit: cover;"
         >
@@ -233,7 +233,7 @@ exports[`render preview image 1`] = `
         <i class="van-badge__wrapper van-icon van-icon-description van-uploader__file-icon">
         </i>
         <div class="van-uploader__file-name van-ellipsis">
-          https://img01.yzcdn.cn/vant/test.pdf
+          https://img.yzcdn.cn/vant/test.pdf
         </div>
       </div>
       <div class="van-uploader__preview-delete">
diff --git a/src/uploader/test/index.spec.ts b/src/uploader/test/index.spec.ts
index b255ef725..bf14b0db1 100644
--- a/src/uploader/test/index.spec.ts
+++ b/src/uploader/test/index.spec.ts
@@ -1,23 +1,33 @@
+import { nextTick } from 'vue';
 import Uploader, { UploaderFileListItem } from '..';
 import { mount, later, triggerDrag } from '../../../test';
-import { nextTick } from 'vue';
 
 const mockFileDataUrl = 'data:image/test';
 const mockFile = new File([new ArrayBuffer(10000)], 'test.jpg');
-const IMAGE = 'https://img01.yzcdn.cn/vant/cat.jpeg';
-const PDF = 'https://img01.yzcdn.cn/vant/test.pdf';
+const IMAGE = 'https://img.yzcdn.cn/vant/cat.jpeg';
+const PDF = 'https://img.yzcdn.cn/vant/test.pdf';
 
-(window.FileReader as any) = function (this: any) {
-  (this as any).readAsText = function () {
-    this.onload &&
+function mockFileReader() {
+  function mockReadAsText(this: FileReader) {
+    if (this.onload) {
       this.onload({
         target: {
           result: mockFileDataUrl,
         },
-      });
-  };
-  this.readAsDataURL = this.readAsText;
-};
+      } as ProgressEvent<FileReader>);
+    }
+  }
+
+  Object.defineProperty(window.FileReader.prototype, 'readAsText', {
+    value: mockReadAsText,
+  });
+
+  Object.defineProperty(window.FileReader.prototype, 'readAsDataURL', {
+    value: mockReadAsText,
+  });
+}
+
+mockFileReader();
 
 test('disabled', async () => {
   const afterRead = jest.fn();
@@ -256,8 +266,8 @@ test('render preview image', async () => {
   const wrapper = mount(Uploader, {
     props: {
       modelValue: [
-        { url: 'https://img01.yzcdn.cn/vant/cat.jpeg' },
-        { url: 'https://img01.yzcdn.cn/vant/test.pdf' },
+        { url: 'https://img.yzcdn.cn/vant/cat.jpeg' },
+        { url: 'https://img.yzcdn.cn/vant/test.pdf' },
         { file: mockFile },
       ],
     },
@@ -270,7 +280,7 @@ test('image-fit prop', () => {
   const wrapper = mount(Uploader, {
     props: {
       imageFit: 'contain',
-      modelValue: [{ url: 'https://img01.yzcdn.cn/vant/cat.jpeg' }],
+      modelValue: [{ url: 'https://img.yzcdn.cn/vant/cat.jpeg' }],
     },
   });
 
diff --git a/src/utils/test/index.spec.ts b/src/utils/test/index.spec.ts
index 365078aec..b0710dd48 100644
--- a/src/utils/test/index.spec.ts
+++ b/src/utils/test/index.spec.ts
@@ -109,11 +109,13 @@ test('addUnit', () => {
 });
 
 test('unitToPx', () => {
-  const originGetComputedStyle = window.getComputedStyle;
+  const mockedStyle = { fontSize: '16px' } as CSSStyleDeclaration;
+  const spy = jest
+    .spyOn(window, 'getComputedStyle')
+    .mockReturnValue(mockedStyle);
 
   Object.defineProperty(window, 'innerWidth', { value: 100 });
   Object.defineProperty(window, 'innerHeight', { value: 200 });
-  window.getComputedStyle = () => ({ fontSize: '16px' } as CSSStyleDeclaration);
 
   expect(unitToPx(0)).toEqual(0);
   expect(unitToPx(10)).toEqual(10);
@@ -123,5 +125,5 @@ test('unitToPx', () => {
   expect(unitToPx('10vw')).toEqual(10);
   expect(unitToPx('10vh')).toEqual(20);
 
-  window.getComputedStyle = originGetComputedStyle;
+  spy.mockRestore();
 });
diff --git a/test/dom.ts b/test/dom.ts
index 1497e39aa..5e89e7d9b 100644
--- a/test/dom.ts
+++ b/test/dom.ts
@@ -38,13 +38,9 @@ export function mockScrollIntoView() {
 }
 
 export function mockGetBoundingClientRect(rect: Partial<DOMRect>): () => void {
-  const originMethod = Element.prototype.getBoundingClientRect;
-
-  Element.prototype.getBoundingClientRect = jest.fn(() => rect as DOMRect);
-
-  return function () {
-    Element.prototype.getBoundingClientRect = originMethod;
-  };
+  const spy = jest.spyOn(Element.prototype, 'getBoundingClientRect');
+  spy.mockReturnValue(rect as DOMRect);
+  return () => spy.mockRestore();
 }
 
 export async function mockScrollTop(value: number) {