diff --git a/README.md b/README.md
index 9ce70f7f7..67ddaaeb5 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,7 @@ WYSIWYG.
 
 ### Free
 
-All local features are free.
+All local features are free, even for commercial use.
 
 * Content block
   * Block-level reference and two-way links
diff --git a/README_zh_CN.md b/README_zh_CN.md
index 3ecfb06fb..511aabded 100644
--- a/README_zh_CN.md
+++ b/README_zh_CN.md
@@ -27,7 +27,7 @@
 
 ### 免费
 
-所有本地功能都是免费的。
+所有本地功能都是免费的，即使是在商业环境下使用。
 
 * 内容块
   * 块级引用和双向链接