diff --git a/nonebot/plugin.py b/nonebot/plugin.py
index dd992f57..d864af1c 100644
--- a/nonebot/plugin.py
+++ b/nonebot/plugin.py
@@ -13,7 +13,7 @@ from types import ModuleType
 from dataclasses import dataclass
 from importlib._bootstrap import _load
 from contextvars import Context, ContextVar, copy_context
-from typing import Any, Set, List, Dict, Type, Tuple, Union, Optional, TYPE_CHECKING, Iterable
+from typing import Any, Set, List, Dict, Type, Tuple, Union, Optional, Iterable, TYPE_CHECKING
 
 from nonebot.log import logger
 from nonebot.matcher import Matcher
diff --git a/pyproject.toml b/pyproject.toml
index 330f4dec..58566a6d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "nonebot2"
-version = "2.0.0a9.post2"
+version = "2.0.0a10"
 description = "An asynchronous python bot framework."
 authors = ["yanyongyu <yanyongyu_1@126.com>"]
 license = "MIT"