diff --git a/leetcode/1609.Even-Odd-Tree/README.md b/leetcode/1609.Even-Odd-Tree/README.md
index 25acb267..0481d982 100644
--- a/leetcode/1609.Even-Odd-Tree/README.md
+++ b/leetcode/1609.Even-Odd-Tree/README.md
@@ -1,4 +1,4 @@
-# [1609. Even Odd Tree](https://leetcode-cn.com/problems/even-odd-tree/)
+# [1609. Even Odd Tree](https://leetcode.com/problems/even-odd-tree/)
 
 ## 题目