diff --git a/problems/0714.买卖股票的最佳时机含手续费（动态规划）.md b/problems/0714.买卖股票的最佳时机含手续费（动态规划）.md
index 9aa82d4a..042de947 100644
--- a/problems/0714.买卖股票的最佳时机含手续费（动态规划）.md
+++ b/problems/0714.买卖股票的最佳时机含手续费（动态规划）.md
@@ -282,7 +282,7 @@ impl Solution {
 }
 ```
 
-**动态规划优化**
+**动态规划空间优化**
 
 ```rust
 impl Solution {