diff --git a/CHANGES b/CHANGES
index a3309cf..51aefe6 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1 +1,2 @@
+0.0.5 Optimization for uploadding file
 0.0.4  Add traceback information, Add default logging handler
diff --git a/setup.py b/setup.py
index 7a07b54..556f58d 100644
--- a/setup.py
+++ b/setup.py
@@ -8,7 +8,7 @@
     sys.exit('Sorry, only python 2.6 or 2.7 is supported')
 
 setup(name='qcloud_cos_v4',
-      version='0.0.4',
+      version='0.0.5',
       description='python sdk for tencent qcloud cos v4.0',
       long_description=open('README.rst', 'r').read(),
       license='MIT License',