diff --git a/.cargo/config.toml b/.cargo/config.toml
deleted file mode 100644
index 4ffbd39..0000000
--- a/.cargo/config.toml
+++ /dev/null
@@ -1,5 +0,0 @@
-[source.crates-io]
-replace-with = "tuna"
-
-[source.tuna]
-registry = "sparse+https://mirrors.tuna.tsinghua.edu.cn/crates.io-index/"