diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 409b0f4..bcbd622 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -16,9 +16,8 @@ jobs:
       run:
         |
         python -m pip install --upgrade pip
-        pip install cython
-        pip install numpy
-        python3 setup.py install
+        pip install "cython<3.0"
+        pip install "numpy<2"
         pip install -e .[dev,test]
     - name: Test
       run: pytest