diff --git a/python/examples/low_precision/resnet50/resnet50_client.py b/python/examples/low_precision/resnet50/resnet50_client.py
index 999b143c8a9aaf42784cbe225a8417b86a054c64..5d7b3124196260fe08c4be63b2537a366354074c 100644
--- a/python/examples/low_precision/resnet50/resnet50_client.py
+++ b/python/examples/low_precision/resnet50/resnet50_client.py
@@ -19,7 +19,7 @@ from paddle_serving_app.reader import RGB2BGR, Transpose, Div, Normalize
 client = Client()
 client.load_client_config(
     "serving_client/serving_client_conf.prototxt")
-client.connect(["127.0.0.1:9303"])
+client.connect(["127.0.0.1:9393"])
 
 seq = Sequential([
     File2Image(), Resize(256), CenterCrop(224), RGB2BGR(), Transpose((2, 0, 1)),