diff --git a/test/__main__.py b/test/__main__.py
index 474e1b47..ba38d4e6 100644
--- a/test/__main__.py
+++ b/test/__main__.py
@@ -12,7 +12,7 @@
 running_out = 0
 for file in here.iterdir():
     if file.is_file() and file.name.startswith("test"):
-        cmd = f"pytest {file} " + flags
+        cmd = f"pytest -n 2 {file} " + flags
         out = subprocess.run(cmd, shell=True).returncode
         running_out = max(running_out, out)
 sys.exit(running_out)
diff --git a/test/requirements.txt b/test/requirements.txt
index 9de88eb6..723e3188 100644
--- a/test/requirements.txt
+++ b/test/requirements.txt
@@ -2,5 +2,6 @@ beartype
 jaxlib
 optax
 pytest
+pytest-xdist
 scipy
 tqdm