diff --git a/packages/application/tts_job/streaming_service.py b/packages/application/tts_job/streaming_service.py
index 97e048472..0ac3f4cc7 100644
--- a/packages/application/tts_job/streaming_service.py
+++ b/packages/application/tts_job/streaming_service.py
@@ -12,15 +12,13 @@ import logging
 from typing import Any, Optional
 
 import httpx
-
+from packages.application.cosyvoice_service import CosyVoiceError, CosyVoiceService
+from packages.application.tts_job.text_splitter import split_text
 from packages.shared.url_security import (
     ALLOWED_AUDIO_MIME_TYPES,
     safe_download_bytes,
 )
 
-from packages.application.cosyvoice_service import CosyVoiceError, CosyVoiceService
-from packages.application.tts_job.text_splitter import split_text
-
 logger = logging.getLogger(__name__)
 
 # WebSocket 二进制帧块大小（4KB）