diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index b138d65..bd91988 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -16,6 +16,10 @@ jobs:
         with:
           python-version: ${{ matrix.python-version }}
 
+      - name: Install setuptools
+        run: |
+          pip install setuptools
+
       - name: Run test suite
         run: |
           python setup.py test