diff --git a/setup.py b/setup.py
index 50ff039a..eec88352 100644
--- a/setup.py
+++ b/setup.py
@@ -16,7 +16,7 @@ def long_description():
 
 setup(
     name='cos-python-sdk-v5',
-    version='1.5.4',
+    version='1.5.5',
     url='https://www.qcloud.com/',
     license='MIT',
     author='tiedu, lewzylu, channingliu',