diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 20eb888..a20bb12 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -41,7 +41,7 @@ jobs:
       - name: run the test script
         working-directory: tests
         run: |
-          pip install pytest
+          pip install pytest setuptools==39.1.0
           pytest test_demo.py
           python uvad_test.py