diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 95e4f70..76cbf55 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -29,3 +29,6 @@ jobs:
       - name: Run copy script
         run: |
           ./copy.sh
+      - name: Check Brewfile contents
+        run: |
+          brew bundle list