diff --git a/problems/0056.合并区间.md b/problems/0056.合并区间.md
index 92b66473..e444a221 100644
--- a/problems/0056.合并区间.md
+++ b/problems/0056.合并区间.md
@@ -96,7 +96,7 @@ public:
     vector<vector<int>> merge(vector<vector<int>>& intervals) {
         vector<vector<int>> result;
         if (intervals.size() == 0) return result;
-        // 排序的参数使用了lamda表达式
+        // 排序的参数使用了lambda表达式
         sort(intervals.begin(), intervals.end(), [](const vector<int>& a, const vector<int>& b){return a[0] < b[0];});
 
         result.push_back(intervals[0]);