diff --git a/notes.md b/notes.md
index 314d7bc..b9efb51 100644
--- a/notes.md
+++ b/notes.md
@@ -1 +1,6 @@
 pycocotools: pip install git+https://github.com/philferriere/cocoapi.git#subdirectory=PythonAPI
+
+conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/
+conda config --set show_channel_urls yes
+pip install -i https://pypi.tuna.tsinghua.edu.cn/simple pip -U
+pip config set global.index-url https://pypi.tuna.tsinghua.edu.cn/simple