diff --git a/doc/NEW_WEB_SERVICE.md b/doc/NEW_WEB_SERVICE.md
index a36c1b7633076b04801bcbb5ce04ae39acd7bce9..39bca98a3bdfbc1b2cadb5d2c3d60395b4592b34 100644
--- a/doc/NEW_WEB_SERVICE.md
+++ b/doc/NEW_WEB_SERVICE.md
@@ -2,7 +2,7 @@
 
 ([简体中文](NEW_WEB_SERVICE_CN.md)|English)
 
-This document will take the image classification service based on the Imagenet data set as an example to introduce how to develop a new web service. The complete code can be visited at [here](https://github.com/PaddlePaddle/Serving/blob/develop/python/examples/imagenet/image_classification_service.py).
+This document will take the image classification service based on the Imagenet data set as an example to introduce how to develop a new web service. The complete code can be visited at [here](../python/examples/imagenet/resnet50_web_service.py).
 
 ## WebService base class
 
diff --git a/doc/NEW_WEB_SERVICE_CN.md b/doc/NEW_WEB_SERVICE_CN.md
index c9555f88a62d64b2ce1b2d8dabd2bf88dc706326..43ca7fb61f2c70f13019574a7984e3665bd1b6fa 100644
--- a/doc/NEW_WEB_SERVICE_CN.md
+++ b/doc/NEW_WEB_SERVICE_CN.md
@@ -2,7 +2,7 @@
 
 (简体中文|[English](NEW_WEB_SERVICE.md))
 
-本文档将以Imagenet图像分类服务为例，来介绍如何开发一个新的Web Service。您可以在[这里](https://github.com/PaddlePaddle/Serving/blob/develop/python/examples/imagenet/image_classification_service.py)查阅完整的代码。
+本文档将以Imagenet图像分类服务为例，来介绍如何开发一个新的Web Service。您可以在[这里](../python/examples/imagenet/resnet50_web_service.py)查阅完整的代码。
 
 ## WebService基类
 
diff --git a/python/paddle_serving_app/version.py b/python/paddle_serving_app/version.py
index 92ef4bed8a2fa14f0f7e686f0424db23a1e7d227..332cba98dd692c4e33da68d4de7763e83e3729b5 100644
--- a/python/paddle_serving_app/version.py
+++ b/python/paddle_serving_app/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 """ Paddle Serving App version string """
-serving_app_version = "0.1.1"
+serving_app_version = "0.1.2"
diff --git a/python/paddle_serving_client/version.py b/python/paddle_serving_client/version.py
index 4e024f00030d1fcf9a5eec7a2d8aec6d7c029251..f7fc14b2a7f0c25b471e8d3bb44e9d6db6839d01 100644
--- a/python/paddle_serving_client/version.py
+++ b/python/paddle_serving_client/version.py
@@ -12,6 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 """ Paddle Serving Client version string """
-serving_client_version = "0.3.1"
-serving_server_version = "0.3.1"
-module_proto_version = "0.3.1"
+serving_client_version = "0.3.2"
+serving_server_version = "0.3.2"
+module_proto_version = "0.3.2"
diff --git a/python/paddle_serving_server/version.py b/python/paddle_serving_server/version.py
index 4e024f00030d1fcf9a5eec7a2d8aec6d7c029251..f7fc14b2a7f0c25b471e8d3bb44e9d6db6839d01 100644
--- a/python/paddle_serving_server/version.py
+++ b/python/paddle_serving_server/version.py
@@ -12,6 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 """ Paddle Serving Client version string """
-serving_client_version = "0.3.1"
-serving_server_version = "0.3.1"
-module_proto_version = "0.3.1"
+serving_client_version = "0.3.2"
+serving_server_version = "0.3.2"
+module_proto_version = "0.3.2"
diff --git a/python/paddle_serving_server/web_service.py b/python/paddle_serving_server/web_service.py
index ea43c8cb18731f60d905ccbe4bada605709d9c11..47c39e64708d3e7871cf160efbd3982c35c71d54 100755
--- a/python/paddle_serving_server/web_service.py
+++ b/python/paddle_serving_server/web_service.py
@@ -88,8 +88,8 @@ class WebService(object):
             result = self.postprocess(
                 feed=request.json["feed"], fetch=fetch, fetch_map=fetch_map)
             result = {"result": result}
-        except ValueError:
-            result = {"result": "Request Value Error"}
+        except ValueError, err:
+            result = {"result": err}
         return result
 
     def run_rpc_service(self):
diff --git a/python/paddle_serving_server_gpu/version.py b/python/paddle_serving_server_gpu/version.py
index 4e024f00030d1fcf9a5eec7a2d8aec6d7c029251..f7fc14b2a7f0c25b471e8d3bb44e9d6db6839d01 100644
--- a/python/paddle_serving_server_gpu/version.py
+++ b/python/paddle_serving_server_gpu/version.py
@@ -12,6 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 """ Paddle Serving Client version string """
-serving_client_version = "0.3.1"
-serving_server_version = "0.3.1"
-module_proto_version = "0.3.1"
+serving_client_version = "0.3.2"
+serving_server_version = "0.3.2"
+module_proto_version = "0.3.2"
diff --git a/python/paddle_serving_server_gpu/web_service.py b/python/paddle_serving_server_gpu/web_service.py
index 0eff9c72df84b30ded7dbc7c2e82a96bbd591162..886deb769d9aa7fa581cb42087c106e67c71e31b 100644
--- a/python/paddle_serving_server_gpu/web_service.py
+++ b/python/paddle_serving_server_gpu/web_service.py
@@ -133,8 +133,8 @@ class WebService(object):
             result = self.postprocess(
                 feed=request.json["feed"], fetch=fetch, fetch_map=fetch_map)
             result = {"result": result}
-        except ValueError:
-            result = {"result": "Request Value Error"}
+        except ValueError, err:
+            result = {"result": err}
         return result
 
     def run_rpc_service(self):
diff --git a/python/setup.py.client.in b/python/setup.py.client.in
index 4613d2db7747d06ab706bc96181f612985630811..96773c38dc950c0b8357274dff30d7c952ecdc25 100644
--- a/python/setup.py.client.in
+++ b/python/setup.py.client.in
@@ -58,7 +58,7 @@ if '${PACK}' == 'ON':
 
 
 REQUIRED_PACKAGES = [
-    'six >= 1.10.0', 'protobuf >= 3.1.0', 'numpy >= 1.12', 'grpcio >= 1.28.1',
+    'six >= 1.10.0', 'protobuf >= 3.11.0', 'numpy >= 1.12', 'grpcio >= 1.28.1',
     'grpcio-tools >= 1.28.1'
 ]
 
diff --git a/python/setup.py.server.in b/python/setup.py.server.in
index 967b98da42f77ac593d723ce64fe6533abe40bb0..db679edbab8e6ba6929ed631c2bbc5a731146d0d 100644
--- a/python/setup.py.server.in
+++ b/python/setup.py.server.in
@@ -37,7 +37,7 @@ def python_version():
 max_version, mid_version, min_version = python_version()
 
 REQUIRED_PACKAGES = [
-    'six >= 1.10.0', 'protobuf >= 3.1.0', 'grpcio >= 1.28.1', 'grpcio-tools >= 1.28.1',
+    'six >= 1.10.0', 'protobuf >= 3.11.0', 'grpcio >= 1.28.1', 'grpcio-tools >= 1.28.1',
     'paddle_serving_client', 'flask >= 1.1.1', 'paddle_serving_app'
 ]
 
diff --git a/python/setup.py.server_gpu.in b/python/setup.py.server_gpu.in
index 29098b7c8d23a3f53abd084b68871c66512e8b4f..65dec4621fceba3967ff21814b218c0229a5124b 100644
--- a/python/setup.py.server_gpu.in
+++ b/python/setup.py.server_gpu.in
@@ -37,7 +37,7 @@ def python_version():
 max_version, mid_version, min_version = python_version()
 
 REQUIRED_PACKAGES = [
-    'six >= 1.10.0', 'protobuf >= 3.1.0', 'grpcio >= 1.28.1', 'grpcio-tools >= 1.28.1',
+    'six >= 1.10.0', 'protobuf >= 3.11.0', 'grpcio >= 1.28.1', 'grpcio-tools >= 1.28.1',
     'paddle_serving_client', 'flask >= 1.1.1', 'paddle_serving_app'
 ]