diff --git a/src/bubble.js b/src/bubble.js
index c1be395..8a9ad02 100644
--- a/src/bubble.js
+++ b/src/bubble.js
@@ -2,7 +2,7 @@ export function bubbleSort(arr) {
   for (let i = 0; i < arr.length; i++) {
     for (let j = 0; j < arr.length - i - 1; j++) {
       if (arr[j] > arr[j + 1]) {
-        let temp = arr[j];
+        const temp = arr[j];
         arr[j] = arr[j + 1];
         arr[j + 1] = temp;
       }