diff --git a/mail4one/pop3.py b/mail4one/pop3.py
index 9f56854..ecf45e8 100644
--- a/mail4one/pop3.py
+++ b/mail4one/pop3.py
@@ -340,7 +340,9 @@ def make_pop_server_callback(mails_path: Path, users: list[User], timeout_second
     async def session_cb(reader: StreamReader, writer: StreamWriter):
         c_shared_state.set(s_state)
         ip, _ = writer.get_extra_info("peername")
-        c_state.set(State(reader=reader, writer=writer, ip=ip, req_id=s_state.next_id()))
+        c_state.set(
+            State(reader=reader, writer=writer, ip=ip, req_id=s_state.next_id())
+        )
         logger.info("Got pop server callback")
         try:
             try:
diff --git a/mail4one/smtp.py b/mail4one/smtp.py
index 169ad6c..4e69a84 100644
--- a/mail4one/smtp.py
+++ b/mail4one/smtp.py
@@ -20,7 +20,12 @@ logger = logging.getLogger("smtp")
 
 
 class MyHandler(AsyncMessage):
-    def __init__(self, mails_path: Path, mbox_finder: Callable[[str], list[str]], listener_type: str):
+    def __init__(
+        self,
+        mails_path: Path,
+        mbox_finder: Callable[[str], list[str]],
+        listener_type: str,
+    ):
         super().__init__()
         self.mails_path = mails_path
         self.mbox_finder = mbox_finder