diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1689236..439f592 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,7 +21,7 @@ jobs:
         run: |
           set -euo pipefail
           python -m pip install --upgrade pip
-          python -m pip install -e . numpy pandas ruff
+          python -m pip install -e . numpy pandas pytest ruff
 
       - name: Run Ruff
         run: |
@@ -31,4 +31,4 @@ jobs:
       - name: Run unit tests
         run: |
           set -euo pipefail
-          PYTHONPATH=src python -m unittest discover -s tests -v
+          PYTHONPATH=src python -m pytest -q tests