diff --git a/tests/requirements.txt b/tests/requirements.txt
index d5f716f..394a2ea 100644
--- a/tests/requirements.txt
+++ b/tests/requirements.txt
@@ -5,3 +5,4 @@ camoufox
 werkzeug<3.0.0
 pytest-httpbin==2.1.0
 httpbin~=0.10.0
+pytest-xdist
diff --git a/tox.ini b/tox.ini
index 9535007..74f91f6 100644
--- a/tox.ini
+++ b/tox.ini
@@ -14,7 +14,7 @@ deps =
 commands =
     playwright install-deps chromium firefox
     camoufox fetch --browserforge
-    pytest --cov=scrapling --cov-report=xml
+    pytest --cov=scrapling --cov-report=xml -n auto
 
 [testenv:pre-commit]
 basepython = python3