diff --git a/README.md b/README.md
index 1319e42..838bf1f 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,7 @@
 </p>
 
 ## 简单线性回归 | 第2天
-[简单线性回归实现](https://github.com/MachineLearning100/100-Days-Of-ML-Code/blob/master/Code/Day2_Simple_Linear_Regression.md)
+[简单线性回归实现](https://github.com/MachineLearning100/100-Days-Of-ML-Code/blob/master/Code/Day%202_Simple_Linear_Regression.md)
 
 <p align="center">
   <img src="https://github.com/MachineLearning100/100-Days-Of-ML-Code/blob/master/Info-graphs/Day%202.jpg">