diff --git a/.cargo/config b/.cargo/config
new file mode 100644
index 0000000..401c3ce
--- /dev/null
+++ b/.cargo/config
@@ -0,0 +1,5 @@
+[source.crates-io]
+replace-with = 'tuna'
+
+[source.tuna]
+registry = "https://mirrors.tuna.tsinghua.edu.cn/git/crates.io-index.git"