diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 487f3c4a..474c33e6 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -18,4 +18,5 @@ jobs:
       with:
         pre_build_commands: |
           sed -i "s/^#baseurl: .*/baseurl: \/${{ github.event.repository.name }}/" _config.yml
+          gem update --system
         token: ${{ secrets.GITHUB_TOKEN }}