diff --git a/.gitea/workflows/docker-publish.yml b/.gitea/workflows/docker-publish.yml
index c17d938..2a7025a 100644
--- a/.gitea/workflows/docker-publish.yml
+++ b/.gitea/workflows/docker-publish.yml
@@ -129,6 +129,7 @@ jobs:
     steps:
       - name: Resolve pi version + companion refs
         id: resolve
+        shell: bash
         run: |
           set -euo pipefail
           AUTH_HEADER="Authorization: token ${GITEA_BUILD_TOKEN:-${GITHUB_TOKEN:-}}"