diff --git a/projects/jupyter-server-ydoc/jupyter_server_ydoc/handlers.py b/projects/jupyter-server-ydoc/jupyter_server_ydoc/handlers.py
index 3010904c..e06a8204 100644
--- a/projects/jupyter-server-ydoc/jupyter_server_ydoc/handlers.py
+++ b/projects/jupyter-server-ydoc/jupyter_server_ydoc/handlers.py
@@ -224,9 +224,7 @@ async def open(self, room_id):
                     self.log.error(f"File {file.path} not found.\n{e!r}", exc_info=e)
                     self.close(1004, f"File {file.path} not found.")
                 else:
-                    self.log.error(
-                        f"Error initializing: {file.path}\n{e!r}", exc_info=e
-                    )
+                    self.log.error(f"Error initializing: {file.path}\n{e!r}", exc_info=e)
                     self.close(
                         1003,
                         f"Error initializing: {file.path}. You need to close the document.",
@@ -306,14 +304,10 @@ async def on_message(self, message):
             for client in self.room.clients:
                 if client != self:
                     task = asyncio.create_task(
-                        client.send(
-                            bytes([MessageType.CHAT]) + write_var_uint(len(data)) + data
-                        )
+                        client.send(bytes([MessageType.CHAT]) + write_var_uint(len(data)) + data)
                     )
                     self._websocket_server.background_tasks.add(task)
-                    task.add_done_callback(
-                        self._websocket_server.background_tasks.discard
-                    )
+                    task.add_done_callback(self._websocket_server.background_tasks.discard)
 
         self._message_queue.put_nowait(message)
         self._websocket_server.ypatch_nb += 1
@@ -332,9 +326,7 @@ def on_close(self) -> None:
         if self._room_id != "JupyterLab:globalAwareness":
             self._emit_awareness_event(self.current_user.username, "leave")
 
-    def _emit(
-        self, level: LogLevel, action: str | None = None, msg: str | None = None
-    ) -> None:
+    def _emit(self, level: LogLevel, action: str | None = None, msg: str | None = None) -> None:
         _, _, file_id = decode_file_path(self._room_id)
         path = self._file_id_manager.get_path(file_id)
 
@@ -346,16 +338,12 @@ def _emit(
 
         self.event_logger.emit(schema_id=JUPYTER_COLLABORATION_EVENTS_URI, data=data)
 
-    def _emit_awareness_event(
-        self, username: str, action: str, msg: str | None = None
-    ) -> None:
+    def _emit_awareness_event(self, username: str, action: str, msg: str | None = None) -> None:
         data = {"roomid": self._room_id, "username": username, "action": action}
         if msg:
             data["msg"] = msg
 
-        self.event_logger.emit(
-            schema_id=JUPYTER_COLLABORATION_AWARENESS_EVENTS_URI, data=data
-        )
+        self.event_logger.emit(schema_id=JUPYTER_COLLABORATION_AWARENESS_EVENTS_URI, data=data)
 
     async def _clean_room(self) -> None:
         """
diff --git a/projects/jupyter-server-ydoc/jupyter_server_ydoc/rooms.py b/projects/jupyter-server-ydoc/jupyter_server_ydoc/rooms.py
index 55dccad7..7b5e5ca1 100644
--- a/projects/jupyter-server-ydoc/jupyter_server_ydoc/rooms.py
+++ b/projects/jupyter-server-ydoc/jupyter_server_ydoc/rooms.py
@@ -150,9 +150,7 @@ async def initialize(self) -> None:
             self.ready = True
             self._emit(LogLevel.INFO, "initialize", "Room initialized")
 
-    def _emit(
-        self, level: LogLevel, action: str | None = None, msg: str | None = None
-    ) -> None:
+    def _emit(self, level: LogLevel, action: str | None = None, msg: str | None = None) -> None:
         data = {"level": level.value, "room": self._room_id, "path": self._file.path}
         if action:
             data["action"] = action
@@ -186,12 +184,8 @@ async def _on_outofband_change(self) -> None:
         """
         Called when the file got out-of-band changes.
         """
-        self.log.info(
-            "Out-of-band changes. Overwriting the content in room %s", self._room_id
-        )
-        self._emit(
-            LogLevel.INFO, "overwrite", "Out-of-band changes. Overwriting the room."
-        )
+        self.log.info("Out-of-band changes. Overwriting the content in room %s", self._room_id)
+        self._emit(LogLevel.INFO, "overwrite", "Out-of-band changes. Overwriting the room.")
 
         try:
             model = await self._file.load_content(self._file_format, self._file_type)
@@ -267,13 +261,9 @@ async def _maybe_save_document(self, saving_document: asyncio.Task | None) -> No
             return
 
         except OutOfBandChanges:
-            self.log.info(
-                "Out-of-band changes. Overwriting the content in room %s", self._room_id
-            )
+            self.log.info("Out-of-band changes. Overwriting the content in room %s", self._room_id)
             try:
-                model = await self._file.load_content(
-                    self._file_format, self._file_type
-                )
+                model = await self._file.load_content(self._file_format, self._file_type)
             except Exception as e:
                 msg = f"Error loading content from file: {self._file.path}\n{e!r}"
                 self.log.error(msg, exc_info=e)