diff --git a/changelog b/changelog
index 625ba6ae..3ec5ccf3 100644
--- a/changelog
+++ b/changelog
@@ -1,3 +1,12 @@
+## [1.6.4] - 2016-09-26
+### Fixed
+- LeanEngine CORS middleware error in Python3
+- missing objectId while using Object._deep_save to update an object
+- allow Object.get method get objectId / createAt/ updatedAt field
+### Updated
+- leancloud.User#get_roles()
+- rename leancloud.Engine#on_bigquery to leancloud.Engine#on_insight
+
 ## [1.6.3] - 2016-08-03
 ### Fixed
 - deprecate leancloud.Query.does_not_exists and add leancloud.Query.does_not_exist
diff --git a/leancloud/__init__.py b/leancloud/__init__.py
index e43e9d97..1e9c6682 100644
--- a/leancloud/__init__.py
+++ b/leancloud/__init__.py
@@ -40,7 +40,7 @@
 
 
 __author__ = 'asaka <lan@leancloud.rocks>'
-__version__ = '1.6.3'
+__version__ = '1.6.4'
 
 
 __all__ = [
diff --git a/setup.py b/setup.py
index 0fbc8d6d..a7f69c47 100644
--- a/setup.py
+++ b/setup.py
@@ -15,7 +15,7 @@
 
 setup(
     name='leancloud-sdk',
-    version='1.6.3',
+    version='1.6.4',
     description='LeanCloud Python SDK',
 
     url='https://leancloud.cn/',