diff --git a/README.md b/README.md
index 91680fa9b6b293920714c21c63fb75ad376e5f10..d15271a33627c032c941226fb35f2969b3af83df 100644
--- a/README.md
+++ b/README.md
@@ -125,7 +125,7 @@ RT-Thread BSP can be compiled directly and downloaded to the corresponding devel
 
 # License
 
-RT-Thread is an open source software and has been licensed under Apache License Version 2.0 since v3.1.1. License information and copyright information can generally be seen at the beginning of the code:
+RT-Thread follows the Apache License 2.0 free software license. It's completely open-source, can be used in commercial applications for free, does not require the disclosure of code, and has no potential commercial risk. License information and copyright information can generally be seen at the beginning of the code:
 
 ```c
 /* Copyright (c) 2006-2018, RT-Thread Development Team
diff --git a/README_zh.md b/README_zh.md
index e1c67ab0f19c8592c399bbe8f443e203e7e9c1fe..dcd08478cade8a4501b68a02e1f19ef88ebb2961 100644
--- a/README_zh.md
+++ b/README_zh.md
@@ -150,7 +150,7 @@ RT-Thread视频中心提供了一系列RT-Thread相关教程及分享内容。
 
 # **许可协议**
 
-RT-Thread系统完全开源，3.1.0 及以前的版本遵循 GPL V2 + 开源许可协议。从 3.1.0 以后的版本遵循Apache License 2.0开源许可协议，可以免费在商业产品中使用，并且不需要公开私有代码。
+RT-Thread 系统完全开源，遵循 Apache License 2.0 开源许可协议，可以免费在商业产品中使用，并且不需要公开私有代码，没有潜在商业风险。
 
 ```
 /*