diff --git a/experimental/openvino_ppdet_cn.md b/experimental/openvino_ppdet_cn.md
old mode 100644
new mode 100755
index ca19761df..cbda0fb15
--- a/experimental/openvino_ppdet_cn.md
+++ b/experimental/openvino_ppdet_cn.md
@@ -51,6 +51,7 @@ cd experimental
 import paddle2onnx
 import paddle
 from openvino_ppdet import nms_mapper
+# 通过上面的`nms_mapper`的import来启用插件，替换了paddle2onnx原始的nms_mapper
 
 model_prefix = "/User/XXX/PaddleDetection/inference_model/yolov3_darknet53_270e_coco/model"
 model = paddle.jit.load(model_prefix)
diff --git a/paddle2onnx/__init__.py b/paddle2onnx/__init__.py
index 1b6f1ef66..4aa6c6b3d 100755
--- a/paddle2onnx/__init__.py
+++ b/paddle2onnx/__init__.py
@@ -13,7 +13,7 @@
 # limitations under the License.
 from __future__ import absolute_import
 
-__version__ = "0.8.1"
+__version__ = "0.9.0"
 
 import paddle
 from .convert import dygraph2onnx, program2onnx
diff --git a/setup.py b/setup.py
index dcc7ef171..c44668b04 100755
--- a/setup.py
+++ b/setup.py
@@ -22,7 +22,7 @@
 
 setuptools.setup(
     name="paddle2onnx",
-    version="0.8.1",
+    version="0.9.0",
     author="dltp-sz",
     author_email="dltp-sz@baidu.com",
     description="a toolkit for converting trained model of PaddlePaddle to ONNX.",