diff --git a/.github/workflows/publish_pypi.yml b/.github/workflows/publish_pypi.yml
index 4f60dfe..33f507b 100644
--- a/.github/workflows/publish_pypi.yml
+++ b/.github/workflows/publish_pypi.yml
@@ -15,6 +15,8 @@ jobs:
       RUSTUP_TOOLCHAIN: stable
     steps:
       - uses: actions/checkout@v6
+        with:
+          submodules: true
       - uses: actions/setup-python@v5
         with:
           python-version: 3.x