diff --git a/.github/workflows/python-publish.yml b/.github/workflows/python-publish.yml
index 6cd174e3..56c71540 100644
--- a/.github/workflows/python-publish.yml
+++ b/.github/workflows/python-publish.yml
@@ -9,6 +9,8 @@ jobs:
 
     steps:
     - uses: actions/checkout@v4
+      with:
+        submodules: recursive
     - name: Set up Python
       uses: actions/setup-python@v5
       with: