diff --git a/examples/vision/detection/yolov7/python/README.md b/examples/vision/detection/yolov7/python/README.md
index 67bdebb77..e8eb20c39 100644
--- a/examples/vision/detection/yolov7/python/README.md
+++ b/examples/vision/detection/yolov7/python/README.md
@@ -80,4 +80,4 @@ YOLOv7模型加载和初始化，其中model_file为导出的ONNX模型格式
 - [YOLOv7 模型介绍](..)
 - [YOLOv7 C++部署](../cpp)
 - [模型预测结果说明](../../../../../docs/api/vision_results/)
-- [如何切换模型推理后端引擎](../../../../how_to_change_backend.md)
+- [如何切换模型推理后端引擎](../../../how_to_change_backend.md)