diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index f5c432d..88a7d90 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -35,6 +35,7 @@ jobs:
           gpg --allow-secret-key-import --import <<< "${{ secrets.PRIVATE_SIGNING_KEY }}"
           git remote set-url origin https://github-actions:${GITHUB_TOKEN}@github.com/${GITHUB_REPOSITORY}
           git config commit.gpgsign true
+          git config tag.gpgsign true
           git config --global user.name ueokande
           git config --global user.email ueokande@i-beam.org
           git config --global user.signingkey 7F94715D031FDE95