diff --git a/ChangeLog.md b/ChangeLog.md
index 3a12372..ecf56e5 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,3 +1,6 @@
+### 2020-12-09 Version 0.1.1
+* Change overwrite to a method with `_async` suffix
+
 ### 2020-12-07 Version 0.1.0
 * Drop support for python3.4.
 * Drop support for python3.5.
diff --git a/alibabacloud_credentials/__init__.py b/alibabacloud_credentials/__init__.py
index 3f5c4a7..93fc4ed 100644
--- a/alibabacloud_credentials/__init__.py
+++ b/alibabacloud_credentials/__init__.py
@@ -1 +1 @@
-__version__ = "0.1.0"
+__version__ = "0.1.1"
diff --git a/alibabacloud_credentials/client.py b/alibabacloud_credentials/client.py
index f7dc2a7..01dfc83 100644
--- a/alibabacloud_credentials/client.py
+++ b/alibabacloud_credentials/client.py
@@ -65,16 +65,14 @@ def get_type(self):
     def get_bearer_token(self):
         return self.cloud_credential.bearer_token
 
-
-class AioClient(Client):
     @attribute_error_return_none
-    async def get_access_key_id(self):
+    async def get_access_key_id_async(self):
         return self.cloud_credential.get_access_key_id()
 
     @attribute_error_return_none
-    async def get_access_key_secret(self):
+    async def get_access_key_secret_async(self):
         return self.cloud_credential.get_access_key_secret()
 
     @attribute_error_return_none
-    async def get_security_token(self):
+    async def get_security_token_async(self):
         return self.cloud_credential.get_security_token()