diff --git a/pyproject.toml b/pyproject.toml
index 9d50291..f6af2bd 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -28,3 +28,7 @@ distribution = true
 source = "scm"
 tag_filter = "v*"
 tag_regex = '^v(?:\D*)?(?P<version>([1-9][0-9]*!)?(0|[1-9][0-9]*)(\.(0|[1-9][0-9]*))*((a|b|c|rc)(0|[1-9][0-9]*))?(\.post(0|[1-9][0-9]*))?(\.dev(0|[1-9][0-9]*))?$)$'
+
+[[tool.pdm.source]]
+name = "tuna"
+url = "https://mirrors.tuna.tsinghua.edu.cn/pypi/web/simple"
\ No newline at end of file