diff --git a/pyproject.toml b/pyproject.toml
index 4ff890dbf..7aaa79cb5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -49,6 +49,7 @@ optional-dependencies.dev = [
     "pytest",
     "pytest-csv",
     "pytest-dotenv",
+    "pytest-xdist",
     "pytz",
     "tox~=4.0",
     "types-pytz",