diff --git a/content/blog/2022-03-08-react-18-upgrade-guide.md b/content/blog/2022-03-08-react-18-upgrade-guide.md
index 92fa2933a..677682a39 100644
--- a/content/blog/2022-03-08-react-18-upgrade-guide.md
+++ b/content/blog/2022-03-08-react-18-upgrade-guide.md
@@ -60,7 +60,7 @@ We've also removed the callback from render, since it usually does not have the
 ```js
 // Before
 const container = document.getElementById('app');
-ReactDOM.render(<App tab="home" />, container, () => {
+render(<App tab="home" />, container, () => {
   console.log('rendered');
 });
 
@@ -74,7 +74,7 @@ function AppWithCallbackAfterRender() {
 }
 
 const container = document.getElementById('app');
-const root = ReactDOM.createRoot(container);
+const root = createRoot(container);
 root.render(<AppWithCallbackAfterRender />);
 ```