diff --git a/npu_mnist_example/train.py b/npu_mnist_example/train.py
index ddbcbcb..1fd1e4c 100644
--- a/npu_mnist_example/train.py
+++ b/npu_mnist_example/train.py
@@ -17,7 +17,6 @@
 """
 
 import os
-os.system("pip install c2net-beta -i https://pypi.tuna.tsinghua.edu.cn/simple")
 import argparse
 from config import mnist_cfg as cfg
 from dataset import create_dataset