diff --git a/src/UseMemo/MemoTutorial.js b/src/UseMemo/MemoTutorial.js
index a179d96..e6e4b94 100644
--- a/src/UseMemo/MemoTutorial.js
+++ b/src/UseMemo/MemoTutorial.js
@@ -29,7 +29,7 @@ export default function MemoTutorial() {
     return longestName;
   };
 
-  const getLongestName = useMemo(() => findLongestName(data), [toggle]);
+  const getLongestName = useMemo(() => findLongestName(data), [data]);
 
   return (
     <div className="App">