diff --git a/.condarc b/.condarc
index 78a9061..4883d18 100644
--- a/.condarc
+++ b/.condarc
@@ -2,13 +2,9 @@ channels:
   - defaults
 show_channel_urls: true
 default_channels:
-  - http://mirrors.aliyun.com/anaconda/pkgs/main
-  - http://mirrors.aliyun.com/anaconda/pkgs/r
-  - http://mirrors.aliyun.com/anaconda/pkgs/msys2
+  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main
+  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/r
+  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/msys2
 custom_channels:
-  conda-forge: http://mirrors.aliyun.com/anaconda/cloud
-  msys2: http://mirrors.aliyun.com/anaconda/cloud
-  bioconda: http://mirrors.aliyun.com/anaconda/cloud
-  menpo: http://mirrors.aliyun.com/anaconda/cloud
-  pytorch: http://mirrors.aliyun.com/anaconda/cloud
-  simpleitk: http://mirrors.aliyun.com/anaconda/cloud
\ No newline at end of file
+  conda-forge: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
+  pytorch: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud