diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 0447993d..f9133d2d 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -51,7 +51,7 @@ jobs:
       run: |
         tox -e py${{ matrix.python }}-${{ matrix.slepc }} -v
       env:
-        PYTEST_ADDOPTS: -v
+        PYTEST_ADDOPTS: -v -n 2
 
     - name: Upload coverage
       uses: codecov/codecov-action@v4
diff --git a/pyproject.toml b/pyproject.toml
index 1999d763..c53aadb8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -72,6 +72,7 @@ test = [
     "pytest>=8",
     "pytest-mock>=3.5.0",
     "pytest-cov>=4",
+    "pytest-xdist",
     "coverage[toml]>=7",
     "zarr",
     "igraph",