diff --git a/home/base/core/pip.nix b/home/base/core/pip.nix
index 3c8a0887..ece228fe 100644
--- a/home/base/core/pip.nix
+++ b/home/base/core/pip.nix
@@ -2,10 +2,16 @@ _: {
   # use mirror for pip install
   xdg.configFile."pip/pip.conf".text = ''
     [global]
-    index-url = https://mirrors.ustc.edu.cn/pypi/web/simple
+    index-url = https://mirror.nju.edu.cn/pypi/web/simple
     format = columns
   '';
 
+  # xdg.configFile."pip/pip.conf".text = ''
+  #   [global]
+  #   index-url = https://mirror.nju.edu.cn/pypi/web/simple
+  #   format = columns
+  # '';
+
   # xdg.configFile."pip/pip.conf".text = ''
   #   [global]
   #   index-url = https://mirrors.bfsu.edu.cn/pypi/web/simple