diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 2a33805..ce2527f 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -8,23 +8,14 @@ jobs:
   test-bot:
     strategy:
       matrix:
-        os: [macos-14]
+        os: [ubuntu-22.04, macos-13, macos-14]
     runs-on: ${{ matrix.os }}
     steps:
       - name: Set up Homebrew
         id: set-up-homebrew
         uses: Homebrew/actions/setup-homebrew@master
 
-      - name: Cache Homebrew Bundler RubyGems
-        id: cache
-        uses: actions/cache@v1
-        with:
-          path: ${{ steps.set-up-homebrew.outputs.gems-path }}
-          key: ${{ runner.os }}-rubygems-${{ steps.set-up-homebrew.outputs.gems-hash }}
-          restore-keys: ${{ runner.os }}-rubygems-
-
       - name: Install Homebrew Bundler RubyGems
-        if: steps.cache.outputs.cache-hit != 'true'
         run: brew install-bundler-gems
 
       - run: brew test-bot --only-cleanup-before
@@ -38,7 +29,7 @@ jobs:
 
       - name: Upload bottles as artifact
         if: always() && github.event_name == 'pull_request'
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: bottles
           path: '*.bottle.*'