diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index a9d63ff..446bdff 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -17,6 +17,7 @@ jobs:
         uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ matrix.ruby }}
+          bundler: 2.4.10
           bundler-cache: true
       - name: Run the default task
         run: bundle exec rake