diff --git a/examples/vision/ocr/PP-OCRv3/serving/models/det_postprocess/1/model.py b/examples/vision/ocr/PP-OCRv3/serving/models/det_postprocess/1/model.py
index faaca906737..9cfe2583e02 100644
--- a/examples/vision/ocr/PP-OCRv3/serving/models/det_postprocess/1/model.py
+++ b/examples/vision/ocr/PP-OCRv3/serving/models/det_postprocess/1/model.py
@@ -217,7 +217,7 @@ def execute(self, requests):
             out_tensor_0 = pb_utils.Tensor(
                 self.output_names[0],
                 np.array(
-                    batch_rec_texts, dtype=np.object))
+                    batch_rec_texts, dtype=np.object_))
             out_tensor_1 = pb_utils.Tensor(self.output_names[1],
                                            np.array(batch_rec_scores))
             inference_response = pb_utils.InferenceResponse(
diff --git a/examples/vision/ocr/PP-OCRv3/serving/models/rec_postprocess/1/model.py b/examples/vision/ocr/PP-OCRv3/serving/models/rec_postprocess/1/model.py
index fe66e8c3f3c..c046cd929b7 100755
--- a/examples/vision/ocr/PP-OCRv3/serving/models/rec_postprocess/1/model.py
+++ b/examples/vision/ocr/PP-OCRv3/serving/models/rec_postprocess/1/model.py
@@ -96,7 +96,7 @@ def execute(self, requests):
             results = self.postprocessor.run([infer_outputs])
             out_tensor_0 = pb_utils.Tensor(
                 self.output_names[0], np.array(
-                    results[0], dtype=np.object))
+                    results[0], dtype=np.object_))
             out_tensor_1 = pb_utils.Tensor(self.output_names[1],
                                            np.array(results[1]))
             inference_response = pb_utils.InferenceResponse(