diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
index d482c88..8bea618 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-package.yml
@@ -26,7 +26,8 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        python -m pip install --upgrade numpy scipy pytest coverage
+        python -m pip install --upgrade numpy pytest coverage
+        python -m pip install scipy=${{ matrix.scipy-version }} 
     - name: Test with pytest & coverage
       run: |
         python -m coverage run -m pytest