diff --git a/environment.yml b/environment.yml
index 2308c294..2b32f211 100644
--- a/environment.yml
+++ b/environment.yml
@@ -15,6 +15,7 @@ dependencies:
   - pyarrow
   - python
   - pytest
+  - pytest_xdist
   - scikit-build-core
   - sphinx
   - pre-commit
diff --git a/pyproject.toml b/pyproject.toml
index e1f8a2a9..479feaa5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -66,9 +66,10 @@ known_first_party = "pantab"
 build = "cp39-*64 cp310-*64 cp311-*64 cp312-*64"
 skip = "*musllinux*"
 
-test-command = "python -m pytest {project}/tests"
+test-command = "python -m pytest -n auto {project}/tests"
 test-requires = [
   "pytest",
+  "pytest-xdist[psutil]",
   "pandas>=2.0.0",
   "polars~=1.2.0",
   "narwhals",