diff --git a/problems/0724.寻找数组的中心索引.md b/problems/0724.寻找数组的中心索引.md
index 052d4c02..b4115893 100644
--- a/problems/0724.寻找数组的中心索引.md
+++ b/problems/0724.寻找数组的中心索引.md
@@ -89,7 +89,7 @@ class Solution {
 
 ## Python
 
-```python
+```python3
 class Solution:
     def pivotIndex(self, nums: List[int]) -> int:
         numSum = sum(nums) #数组总和