diff --git a/Code/Day 1_Data_Preprocessing.md b/Code/Day 1_Data_Preprocessing.md
index 6a149ce..5542709 100644
--- a/Code/Day 1_Data_Preprocessing.md	
+++ b/Code/Day 1_Data_Preprocessing.md	
@@ -6,7 +6,7 @@
 
 如图所示，通过6步完成数据预处理。
 
-此例用到的[数据](https://github.com/Avik-Jain/100-Days-Of-ML-Code/blob/master/datasets/Data.csv)，[代码](https://github.com/MLEveryday/100-Days-Of-ML-Code/blob/master/Code/Day%201_Data%20Preprocessing.py)。
+此例用到的[数据](https://github.com/Avik-Jain/100-Days-Of-ML-Code/blob/master/datasets/Data.csv)，[代码](https://github.com/MLEveryday/100-Days-Of-ML-Code/blob/master/Code/Day%201_Data_Preprocessing.py)。
 
 ## 第1步：导入库
 ```Python