diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 9538b6d..ac4901c 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -36,6 +36,7 @@ jobs:
           working-directory: chanlun-py
           args: --release --out dist
           manylinux: auto
+          python-source: download
           before-script-linux: |
             if [ "${{ matrix.target }}" = "aarch64" ]; then
               sudo apt-get update && sudo apt-get install -y gcc-aarch64-linux-gnu