diff --git a/README.md b/README.md
index 9eb49b5f..53d48ade 100644
--- a/README.md
+++ b/README.md
@@ -70,7 +70,7 @@
 | 0001 |  Two Sum                                                     | [Go](https://github.com/halfrost/LeetCode-Go/tree/master/Algorithms/0001.%20Two%20Sum)                                                              | 44.30%      |  Easy       |            |
 | 0002 |  Add Two Numbers                                             | [Go](https://github.com/halfrost/LeetCode-Go/tree/master/Algorithms/0002.%20Add%20Two%20Numbers)                                                         | 31.30%      |  Medium     |            |
 | 0003 |  Longest Substring Without Repeating Characters              | [Go](https://github.com/halfrost/LeetCode-Go/tree/master/Algorithms/0003.%20Longest%20Substring%20Without%20Repeating%20Characters)                 | 28.50%      |  Medium     |            |
-| 0004 |  Median of Two Sorted Arrays                                 |                                                                                                                                               | 26.60%      |  Hard       |            |
+| 0004 |  Median of Two Sorted Arrays                                 |  [Go](https://github.com/halfrost/LeetCode-Go/tree/master/Algorithms/0004.%20Median%20of%20Two%20Sorted%20Arrays)                                                                                                                                               | 26.60%      |  Hard       |            |
 | 0005 |  Longest Palindromic Substring                               |                                                                                                                                               | 27.50%      |  Medium     |            |
 | 0006 |  ZigZag Conversion                                           |                                                                                                                                               | 32.20%      |  Medium     |            |
 | 0007 |  Reverse Integer                                             |[Go](https://github.com/halfrost/LeetCode-Go/tree/master/Algorithms/0007.%20Reverse%20Integer)                                                                                                                                               | 25.40%      |  Easy       |            |