diff --git a/.forgejo/workflows/publish-docker.yml b/.forgejo/workflows/publish-docker.yml
index 6706e7d..e85bb71 100644
--- a/.forgejo/workflows/publish-docker.yml
+++ b/.forgejo/workflows/publish-docker.yml
@@ -54,10 +54,16 @@ jobs:
     container:
       image: docker:27-cli
     steps:
-      - name: Outils
-        run: apk add --no-cache git
-
-      - uses: https://github.com/actions/checkout@v4
+      # `docker:27-cli` (Alpine) n'a pas Node : on ne peut pas utiliser
+      # actions/checkout (action JS). Clone Git direct du dépôt public.
+      - name: Récupérer les sources
+        run: |
+          set -eu
+          apk add --no-cache git
+          git init -q
+          git remote add origin "${{ github.server_url }}/${{ github.repository }}.git"
+          git fetch -q --depth 1 origin "${{ github.ref_name }}"
+          git checkout -q FETCH_HEAD
 
       - name: Calculer les tags
         id: tags