diff --git a/.github/workflows/build-and-test.yml b/.github/workflows/build-and-test.yml
index 10a8218..f0993b4 100644
--- a/.github/workflows/build-and-test.yml
+++ b/.github/workflows/build-and-test.yml
@@ -38,6 +38,9 @@ jobs:
       uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
+    - name: Install PostgreSQL
+      if: ${{ runner.os == 'macOS' }}
+      run: sudo brew install postgresql
     - name: Set up Poetry
       run: |
         python -m pip install --upgrade pip