diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 9ebaa7f4b..5d8711e15 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -34,7 +34,7 @@ jobs:
       - name: Run tests
         run: |
           source .venv/bin/activate
-          python -m pytest tests/ -q --ignore=tests/integration --tb=short
+          python -m pytest tests/ -q --ignore=tests/integration --tb=short -n auto
         env:
           # Ensure tests don't accidentally call real APIs
           OPENROUTER_API_KEY: ""
diff --git a/pyproject.toml b/pyproject.toml
index 807875156..eb1ae9e53 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -40,7 +40,7 @@ dependencies = [
 [project.optional-dependencies]
 modal = ["swe-rex[modal]>=1.4.0"]
 daytona = ["daytona>=0.148.0"]
-dev = ["pytest", "pytest-asyncio", "mcp>=1.2.0"]
+dev = ["pytest", "pytest-asyncio", "pytest-xdist", "mcp>=1.2.0"]
 messaging = ["python-telegram-bot>=20.0", "discord.py>=2.0", "aiohttp>=3.9.0", "slack-bolt>=1.18.0", "slack-sdk>=3.27.0"]
 cron = ["croniter"]
 slack = ["slack-bolt>=1.18.0", "slack-sdk>=3.27.0"]
@@ -84,4 +84,4 @@ testpaths = ["tests"]
 markers = [
     "integration: marks tests requiring external services (API keys, Modal, etc.)",
 ]
-addopts = "-m 'not integration'"
+addopts = "-m 'not integration' -n auto"