diff --git a/pyproject.toml b/pyproject.toml
index cee48072..9db43ea9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -47,7 +47,7 @@ dependencies = [
 [project.optional-dependencies]
 dev = [
     "pytest>=9.0.3",
-    "pytest-xdist>=3.5.0",
+    "pytest-xdist>=3.8.0",
     "pytest-asyncio>=1.2.0",
     "pytest-cov>=7.1.0",
     "ruff>=0.16.8",
diff --git a/requirements-dev.txt b/requirements-dev.txt
index efe0f3ca..0e97b661 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,6 +1,6 @@
 # Generated from pyproject.toml by scripts/sync-requirements.py.
 pytest>=9.0.3
-pytest-xdist>=3.5.0
+pytest-xdist>=3.8.0
 pytest-asyncio>=1.2.0
 pytest-cov>=7.1.0
 ruff>=0.16.8