diff --git a/docs/src/pages/guides/migration-v4/migration-v4.md b/docs/src/pages/guides/migration-v4/migration-v4.md
index 40ef50a96bba7a..c81c9ee74dc5fe 100644
--- a/docs/src/pages/guides/migration-v4/migration-v4.md
+++ b/docs/src/pages/guides/migration-v4/migration-v4.md
@@ -1127,8 +1127,8 @@ As the core components use emotion as a styled engine, the props used by emotion
 
   ```diff
   function MySwitch() {
-  - const handleChange = (event: any, checked: boolean) => {
-  + const handleChange = (event: any) => {
+  - const handleChange = (event: React.ChangeEvent<HTMLInputElement>, checked: boolean) => {
+  + const handleChange = (event: React.ChangeEvent<HTMLInputElement>) => {
   +   const checked = event.target.checked;
     };