diff --git a/README.md b/README.md
index 7b6189e9..f7a23bc5 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 
 ## preparation
 - Language: Java 8
-- Environment: MacOS, 16G RAM
+- Environment: MacOS, Windows,Linux
 - Database: Mysql5.7
 - Python2.7(支持Python3需要修改替换datax/bin下面的三个python文件，替换文件在doc/datax源码阅读笔记/datax-python3下)