diff --git a/test/typescript/sample-react-redux-usage.tsx b/test/typescript/sample-react-redux-usage.tsx
index 4806fee..5664d9f 100644
--- a/test/typescript/sample-react-redux-usage.tsx
+++ b/test/typescript/sample-react-redux-usage.tsx
@@ -3,7 +3,7 @@
 import React from 'react';
 import ReactDOM from 'react-dom';
 // useSelector
-import { Provider } from 'react-redux';
+import { Provider, useSelector, DefaultRootState } from 'react-redux';
 import { createStore } from 'redux';
 
 import equal from '../../index.js';
@@ -23,23 +23,10 @@ const testArr: IItem[] = [
   { text: 'air', id: '8' },
 ];
 
-type IChildProps = {
-  item: IItem;
-};
-
-class TestChild extends React.Component<IChildProps> {
-  shouldComponentUpdate(nextProps: IChildProps) {
-    return !equal(this.props, nextProps);
-  }
-
-  render() {
-    const { text: word } = this.props.item;
-    return <div>{word}</div>;
-  }
+interface IContainerState extends DefaultRootState {
+  overlap: IItem[];
 }
 
-type IContainerState = { overlap: IItem[] };
-
 const overlap = (state = [], action) => {
   switch (action.type) {
     case 'ADD_ITEM':
@@ -53,15 +40,14 @@ const store = createStore(overlap, ['mountain']);
 
 class TestContainer extends React.Component<{}, IContainerState> {
   render() {
-    // to interact with the store
-    // store.dispatch({ type: 'TYPE', text: 'some-text' })
+    useSelector(this.state, equal);
 
     return (
       <div>
         Testing react-redux
         <div>
           {testArr.map((item) => (
-            <TestChild key={item.id} item={item} />
+            <p key={item.id}>{item.text}</p>
           ))}
         </div>
       </div>
diff --git a/test/typescript/sample-usage.tsx b/test/typescript/sample-usage.tsx
index f45369c..d9c7b91 100644
--- a/test/typescript/sample-usage.tsx
+++ b/test/typescript/sample-usage.tsx
@@ -14,16 +14,14 @@ const testArr: ITodo[] = [
   { text: 'mountain', id: '11' },
   { text: 'air', id: '8' },
   { text: 'plants', id: '9' },
-  { text: 'air', id: '8' },
-  { text: 'air', id: '8' },
 ];
 
-type IChildProps = {
+type IProps = {
   todo: ITodo;
 };
 
-class TestChild extends React.Component<IChildProps> {
-  shouldComponentUpdate(nextProps: IChildProps) {
+class TestChild extends React.Component<IProps> {
+  shouldComponentUpdate(nextProps: IProps) {
     return !equal(this.props, nextProps);
   }