diff --git a/.cargo/config.toml b/.cargo/config.toml
index 047c02f..72a616a 100644
--- a/.cargo/config.toml
+++ b/.cargo/config.toml
@@ -1,6 +1,5 @@
 [source.crates-io]
-registry = "https://github.com/rust-lang/crates.io-index"
-replace-with = 'ustc'
+replace-with = 'mirror'
 
-[source.ustc]
-registry = "https://mirrors.ustc.edu.cn/crates.io-index"
\ No newline at end of file
+[source.mirror]
+registry = "sparse+https://mirrors.tuna.tsinghua.edu.cn/crates.io-index/"
\ No newline at end of file