diff --git a/qcloud_cos/cos_client.py b/qcloud_cos/cos_client.py
index 79023f1..0c1b6d0 100644
--- a/qcloud_cos/cos_client.py
+++ b/qcloud_cos/cos_client.py
@@ -453,7 +453,7 @@ def send_request(self, method, url, bucket=None, timeout=30, cos_request=True, c
                     info['requestid'] = res.headers['x-cos-request-id']
                 if 'x-cos-trace-id' in res.headers:
                     info['traceid'] = res.headers['x-cos-trace-id']
-                logger.warn(info)
+                logger.warning(info)
                 if len(exception_logbuf) > 0:
                     logger.exception(exception_logbuf) # 最终重试失败, 输出前几次重试失败的exception
                 raise CosServiceError(method, info, res.status_code)
diff --git a/qcloud_cos/crypto.py b/qcloud_cos/crypto.py
index a3f707c..22311b2 100644
--- a/qcloud_cos/crypto.py
+++ b/qcloud_cos/crypto.py
@@ -202,7 +202,7 @@ def __init__(self, key_pair_info=None, cipher=AESCTRCipher(), passphrase=None):
 
         # 为用户自动创建rsa
         if self.__encrypt_obj is None and self.__decrypt_obj is None:
-            logger.warn('fail to get rsa key, will generate key')
+            logger.warning('fail to get rsa key, will generate key')
             private_key = RSA.generate(2048)
             public_key = private_key.publickey()
 
@@ -302,7 +302,7 @@ def init_ed_obj(self):
                     self.__ed_obj = AES.new(aes_key, AES.MODE_CTR, counter=self.__my_counter)
 
         if self.__ed_obj is None:
-            logger.warn('fail to get aes key, will generate key')
+            logger.warning('fail to get aes key, will generate key')
             aes_key = random_key(_AES_256_KEY_SIZE)
             self.__ed_obj = AES.new(aes_key, AES.MODE_CTR, counter=self.__my_counter)
             if not os.path.exists(default_aes_dir):