diff --git a/nextcloud_mcp_server/client.py b/nextcloud_mcp_server/client.py
index 8873caf..e4bab4c 100644
--- a/nextcloud_mcp_server/client.py
+++ b/nextcloud_mcp_server/client.py
@@ -1,5 +1,4 @@
 import os
-import datetime as dt
 import mimetypes
 from httpx import (
     AsyncClient,
@@ -181,7 +180,7 @@ class NextcloudClient:
         current_note = await self.notes_get_note(note_id=note_id)
 
         # Use fixed separator for consistency
-        separator = f"\n---\n"
+        separator = "\n---\n"
 
         # Combine content
         existing_content = current_note.get("content", "")
diff --git a/tests/conftest.py b/tests/conftest.py
index ad5e785..621e7cc 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -4,7 +4,6 @@ import logging
 import uuid
 from nextcloud_mcp_server.client import NextcloudClient, HTTPStatusError
 import asyncio
-import pytest_asyncio
 
 logger = logging.getLogger(__name__)