diff --git a/packages/application/tts_job/streaming_service.py b/packages/application/tts_job/streaming_service.py
index d80a049a9..80e7f255d 100644
--- a/packages/application/tts_job/streaming_service.py
+++ b/packages/application/tts_job/streaming_service.py
@@ -13,9 +13,10 @@ 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.tts_job.text_splitter import split_text
+
 logger = logging.getLogger(__name__)
 
 # WebSocket 二进制帧块大小（4KB）