diff --git a/mause_rpc/server.py b/mause_rpc/server.py
index 22d2ba6..0e844ff 100644
--- a/mause_rpc/server.py
+++ b/mause_rpc/server.py
@@ -6,7 +6,7 @@
 import socket
 from dataclasses import dataclass, field
 from functools import partial
-from typing import Callable, Dict, Optional, TypeVar, overload, NoReturn
+from typing import Callable, Dict, NoReturn, Optional, TypeVar, overload
 
 import dill
 import pika
diff --git a/pyproject.toml b/pyproject.toml
index 32aef05..00f279b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -36,7 +36,7 @@ warn_redundant_casts = true
 warn_unused_ignores = true
 
 [tool.poetry.dev-dependencies]
-pytest = "^7.4.2"
+pytest = "^9.0.0"
 mypy = "^1.6"
 black = "^23.9"
 flake8 = "^7.0.0"