diff --git a/components/back-top/demo/custom.md b/components/back-top/demo/custom.md
index e39a790b8c..65d1836fc4 100644
--- a/components/back-top/demo/custom.md
+++ b/components/back-top/demo/custom.md
@@ -10,10 +10,14 @@ title:
 
 可以自定义回到顶部按钮的样式，限制宽高：`40px * 40px`。
 
+> 注意：`BackTop` 需要一个可接受 `onClick` 事件的元素作为 `children`。 如果您直接将文本作为子项放置，则该组件将无法正常运行。
+
 ## en-US
 
 You can customize the style of the button, just note the size limit: no more than `40px * 40px`.
 
+> Note: `BackTop` expects a element could accept `onClick` propety as children. If you put a text directly as children the component will not function properly.
+
 ```tsx
 import { BackTop } from 'antd';
 import React from 'react';
diff --git a/components/card/__tests__/__snapshots__/index.test.js.snap b/components/card/__tests__/__snapshots__/index.test.tsx.snap
similarity index 100%
rename from components/card/__tests__/__snapshots__/index.test.js.snap
rename to components/card/__tests__/__snapshots__/index.test.tsx.snap
diff --git a/components/card/__tests__/index.test.js b/components/card/__tests__/index.test.tsx
similarity index 72%
rename from components/card/__tests__/index.test.js
rename to components/card/__tests__/index.test.tsx
index fc11bc5c74..a9cc063b9a 100644
--- a/components/card/__tests__/index.test.js
+++ b/components/card/__tests__/index.test.tsx
@@ -1,10 +1,9 @@
 import React from 'react';
-import { mount } from 'enzyme';
 import Card from '../index';
 import Button from '../../button/index';
 import mountTest from '../../../tests/shared/mountTest';
 import rtlTest from '../../../tests/shared/rtlTest';
-import { render } from '../../../tests/utils';
+import { render, fireEvent } from '../../../tests/utils';
 
 describe('Card', () => {
   mountTest(Card);
@@ -19,21 +18,21 @@ describe('Card', () => {
   });
 
   it('should still have padding when card which set padding to 0 is loading', () => {
-    const wrapper = mount(
+    const { container } = render(
       <Card loading bodyStyle={{ padding: 0 }}>
         xxx
       </Card>,
     );
-    expect(wrapper.render()).toMatchSnapshot();
+    expect(container.firstChild).toMatchSnapshot();
   });
 
   it('title should be vertically aligned', () => {
-    const wrapper = mount(
+    const { container } = render(
       <Card title="Card title" extra={<Button>Button</Button>} style={{ width: 300 }}>
         <p>Card content</p>
       </Card>,
     );
-    expect(wrapper.render()).toMatchSnapshot();
+    expect(container.firstChild).toMatchSnapshot();
   });
 
   it('onTabChange should work', () => {
@@ -48,26 +47,27 @@ describe('Card', () => {
       },
     ];
     const onTabChange = jest.fn();
-    const wrapper = mount(
+    const { container } = render(
       <Card onTabChange={onTabChange} tabList={tabList}>
         xxx
       </Card>,
     );
-    wrapper.find('.ant-tabs-tab').at(1).simulate('click');
+    fireEvent.click(container.querySelectorAll('.ant-tabs-tab')[1]);
     expect(onTabChange).toHaveBeenCalledWith('tab2');
   });
 
   it('should not render when actions is number', () => {
-    const wrapper = mount(
+    const { container } = render(
+      // @ts-ignore ingnore for the wrong action value
       <Card title="Card title" actions={11}>
         <p>Card content</p>
       </Card>,
     );
-    expect(wrapper.find('.ant-card-actions').length).toBe(0);
+    expect(container.querySelectorAll('.ant-card-actions').length).toBe(0);
   });
 
   it('with tab props', () => {
-    const wrapper = mount(
+    const { container } = render(
       <Card
         title="Card title"
         tabList={[
@@ -81,11 +81,11 @@ describe('Card', () => {
         <p>Card content</p>
       </Card>,
     );
-    expect(wrapper.find('Tabs').get(0).props.size).toBe('small');
+    expect(container.querySelectorAll('.ant-tabs-small').length === 0).toBeFalsy();
   });
 
   it('get ref of card', () => {
-    const cardRef = React.createRef();
+    const cardRef = React.createRef<HTMLDivElement>();
 
     render(
       <Card ref={cardRef} title="Card title">
diff --git a/package.json b/package.json
index b6bb8dde5b..4fed5515df 100644
--- a/package.json
+++ b/package.json
@@ -220,7 +220,7 @@
     "eslint-plugin-babel": "^5.3.0",
     "eslint-plugin-compat": "^4.0.0",
     "eslint-plugin-import": "^2.21.1",
-    "eslint-plugin-jest": "^26.0.0",
+    "eslint-plugin-jest": "~26.3.0",
     "eslint-plugin-jsx-a11y": "^6.2.1",
     "eslint-plugin-markdown": "^2.0.0",
     "eslint-plugin-react": "^7.28.0",