diff --git a/.github/workflows/pythonapp.yml b/.github/workflows/pythonapp.yml
index e6a40ab..26d782a 100644
--- a/.github/workflows/pythonapp.yml
+++ b/.github/workflows/pythonapp.yml
@@ -19,7 +19,7 @@ jobs:
           python-version: 3.8
       - name: Cache poetry virtualenv
         id: cache-poetry
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ~/.local/share/virtualenvs
           key: ${{ runner.os }}-poetry-${{ hashFiles('**/poetry.lock') }}
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