diff --git a/README.md b/README.md
index df00685..b55da58 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@
  
 
 ## Requirements
-This package should work on Python3(>=3.4) and ElasticSearch should be version 6.x or 7.x(>=6.8).
+This package should work on Python3(>=3.4) and ElasticSearch should be version 5.x, 6.x or 7.x.
 
 Installation
 The package is hosted on PyPi and can be installed with pip:
diff --git a/setup.py b/setup.py
index a955396..64babcc 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@
 
 setuptools.setup(
     name='es_pandas',
-    version='0.0.8',
+    version='0.0.9',
     author='Frank',
     author_email='fu.frank@foxmail.com',
     description='Read, write and update large scale pandas DataFrame with ElasticSearch',