diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 45c75a4..3a20ee2 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -73,7 +73,12 @@ jobs:
     permissions:
       id-token: write # PyPI Trusted Publishing — no API-token secret in this repository
     steps:
-      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
+      # Before the artifact: checkout cleans the workspace. `uv publish --index` reads the index
+      # from pyproject.toml, so this job needs the tree as well as the distributions.
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+      - uses: actions/download-artifact@37930b1c2abaa49bbe596cd826c3c89aef350131 # v7.0.0
         with:
           name: dist
           path: dist