diff --git a/README.md b/README.md
index 450e1be28b..18f646d228 100644
--- a/README.md
+++ b/README.md
@@ -56,7 +56,7 @@
     
   5. Waiting for ```Gradle sync``` finish.
   
-  6. Remark: If missing Ninja, could be download from https://github.com/ninja-build/ninja/releases, then copy Ninja.exe to Cmake's bin directory
+  6. Remark: If you use non-sdk provided CMake edition, you need download ```ninja``` from https://github.com/ninja-build/ninja/releases, and copy ```ninja.exe``` to Cmake's bin directory
 
 #### iOS
   1. Ensure xcode11+ installed
diff --git a/README_CN.md b/README_CN.md
index 103f25672b..bec3abc404 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -53,10 +53,10 @@
      * Android SDK Platform 28 r3  (在SDK Platforms页签)
      * Android SDK Build-Tools 28.0.3  
      * NDK r16b+  
-     * CMake 3.6+  
+     * CMake 3.6  
 
   5. 等待Gradle sync完成后，Build APKs，安装运行  
-  6. 如果报缺少Ninja, 从https://github.com/ninja-build/ninja/releases下载， 拷贝Ninja.exe到Cmake的bin目录即可
+  6. 如果使用非sdk自动安装的CMake版本, 需要从https://github.com/ninja-build/ninja/releases下载```ninja```， 并且拷贝```ninja.exe```到CMake的bin目录
 
 #### iOS
   1. 确保已安装xcode11+