diff --git a/.github/workflows/docs.yaml b/.github/workflows/docs.yaml
index 032768d..8d8d678 100644
--- a/.github/workflows/docs.yaml
+++ b/.github/workflows/docs.yaml
@@ -25,6 +25,11 @@ jobs:
           poetry-install-options: "--with=docs --with=types --no-root"
           poetry-export-options: "--with=docs --with=types"
 
+      - name: Install Sphinx (debug)
+        run: |
+          pip install -U sphinx
+          sphinx-apidoc --version
+
       - name: Generate API docs
         run: |
           sphinx-apidoc -o /tmp/docs tus_storagehandler/