diff --git a/.github/workflows/rspec.yml b/.github/workflows/rspec.yml
index a23664c..1a0838b 100644
--- a/.github/workflows/rspec.yml
+++ b/.github/workflows/rspec.yml
@@ -19,6 +19,15 @@ jobs:
 
     steps:
     - uses: actions/checkout@v3
+    
+    - name: Install dependencies (Ubuntu)
+        if: startsWith(matrix.platform, 'ubuntu-')
+        run: sudo apt-get update && sudo apt-get install -y libsdl2-dev libgl1-mesa-dev libfontconfig1-dev xvfb
+
+      - name: Install dependencies (macOS)
+        if: startsWith(matrix.platform, 'macos-')
+        run: brew install sdl2
+
     - name: Set up Ruby
       uses: ruby/setup-ruby@v1
       with: