diff --git a/.github/workflows/test-suite.yml b/.github/workflows/test-suite.yml
index 01683b5..69f2968 100644
--- a/.github/workflows/test-suite.yml
+++ b/.github/workflows/test-suite.yml
@@ -26,7 +26,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install numpy
+        pip install numpy pytest
         pip install -e .
     - name: Test with pytest
       run: |