diff --git a/pyproject.toml b/pyproject.toml
index 8ad99c38..3370978d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -219,7 +219,7 @@ description: run unit tests
 extras = tests
 use_develop = true
 commands =
-  pytest -n auto {posargs:test}
+  pytest {posargs:test}
 
 [testenv:type]
 allowlist_externals = pyright