diff --git a/apps/worker/video_processing/subtitle_render_engine.py b/apps/worker/video_processing/subtitle_render_engine.py
index 2895e568b..b9d601a1d 100755
--- a/apps/worker/video_processing/subtitle_render_engine.py
+++ b/apps/worker/video_processing/subtitle_render_engine.py
@@ -27,6 +27,12 @@ import logging
 from pathlib import Path
 from typing import Any
 
+from video_processing.path_security import (
+    PathSecurityError,
+    is_in_allowed_dirs,
+    safe_resolve_path,
+)
+
 from packages.domain.subtitle_style import (
     ALLOWED_SUBTITLE_EXTENSIONS,
     DEFAULT_FONT_SIZE,
@@ -37,11 +43,6 @@ from packages.domain.subtitle_style import (
 from packages.domain.subtitle_style import escape_ass_text as _escape_ass_text  # noqa: F401  向后兼容导出
 from packages.domain.subtitle_style import format_ass_time as _format_ass_time
 from packages.domain.subtitle_style import wrap_text as _wrap_text
-from video_processing.path_security import (
-    PathSecurityError,
-    is_in_allowed_dirs,
-    safe_resolve_path,
-)
 
 logger = logging.getLogger(__name__)