diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 739ce88f1..9870ba0bb 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -22,6 +22,7 @@ jobs:
           git config --global user.email "noreply@spongepowered.org"
           git config --global user.name "github-actions"
       - name: Configure Google Cloud credentials
+        if: "${{ github.ref == 'refs/heads/lunar' }}"
         uses: google-github-actions/auth@v3
         with:
           workload_identity_provider: 'projects/824216268633/locations/global/workloadIdentityPools/github-actions/providers/github-actions-oidc'