diff --git a/matter_server/common/models.py b/matter_server/common/models.py
index 4c291840..c7128eb0 100644
--- a/matter_server/common/models.py
+++ b/matter_server/common/models.py
@@ -266,5 +266,5 @@ def as_dict(self) -> dict:
             "min_applicable_software_version": self.min_applicable_software_version,
             "max_applicable_software_version": self.max_applicable_software_version,
             "release_notes_url": self.release_notes_url,
-            "update_source": str(self.update_source),
+            "update_source": self.update_source.value,
         }
diff --git a/matter_server/server/ota/provider.py b/matter_server/server/ota/provider.py
index cb583552..513af57c 100644
--- a/matter_server/server/ota/provider.py
+++ b/matter_server/server/ota/provider.py
@@ -5,7 +5,6 @@
 import asyncio
 from base64 import b64encode
 from datetime import UTC, datetime
-import functools
 import hashlib
 import logging
 from pathlib import Path
@@ -78,11 +77,8 @@ def __init__(self, vendor_id: int, ota_provider_dir: Path) -> None:
 
     async def initialize(self) -> None:
         """Initialize OTA Provider."""
-
-        loop = asyncio.get_event_loop()
-
-        await loop.run_in_executor(
-            None, functools.partial(self._ota_provider_dir.mkdir, exist_ok=True)
+        await asyncio.to_thread(
+            self._ota_provider_dir.mkdir, exist_ok=True, parents=True
         )
 
     async def _commission_ota_provider(