diff --git a/ci/cargo-config b/ci/cargo-config
new file mode 100644
index 0000000..e0656fd
--- /dev/null
+++ b/ci/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"
\ No newline at end of file