diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c3cfe48..50cc1f0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,6 +17,10 @@ jobs:
         uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ matrix.ruby }}
+      - name: Update Rubygems
+        run: gem update --system
+      - name: Install bundler
+        run: gem install bundler -v '2.2.16'
       - name: Install dependencies
         run: bundle install
       - name: Run test