diff --git a/.github/workflows/tag.yml b/.github/workflows/tag.yml
index 8497e400e..6101bdd9d 100644
--- a/.github/workflows/tag.yml
+++ b/.github/workflows/tag.yml
@@ -13,6 +13,7 @@ jobs:
       - uses: actions/checkout@master
       - name: Pre-release test
         run: |
+          export PASSBOOK_TAG=latest
           docker-compose pull -q
           docker build \
             --no-cache \