diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 4a98d1f74..82458f0ae 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -57,7 +57,7 @@ jobs:
         run: |
           sudo apt-get install graphviz graphviz-dev
           pip install -e .[test]
-          pytest ${{ matrix.split }}
+          pytest ${{ matrix.split }} --numprocesses auto
       - name: Check oldest version of PyMC
         if: ${{ matrix.config.oldest-pymc }}
         run: python -c "import pymc; assert pymc.__version__ == '${{ env.OLDEST_PYMC_VERSION }}'"
diff --git a/pyproject.toml b/pyproject.toml
index 512bab47b..83146253a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -83,6 +83,7 @@ test = [
     "pytest-cov>=3.0.0",
     "pytest-mock>=3.14.0",
     "pytest>=7.0.1",
+    "pytest-xdist",
     "mlflow>=2.0.0",
     "networkx",
     "dowhy",