diff --git a/problems/0031.下一个排列.md b/problems/0031.下一个排列.md
index 84bf3e60..2219e24d 100644
--- a/problems/0031.下一个排列.md
+++ b/problems/0031.下一个排列.md
@@ -81,7 +81,7 @@ public:
             for (int j = nums.size() - 1; j > i; j--) {
                 if (nums[j] > nums[i]) {
                     swap(nums[j], nums[i]);
-                    sort(nums.begin() + i + 1, nums.end());
+                    reverse(nums.begin() + i + 1, nums.end());
                     return;
                 }
             }