diff --git a/CMakeLists.txt b/CMakeLists.txt
index 155ce70..cc4d96e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,7 +3,7 @@ cmake_minimum_required(VERSION 3.14)
 project(GacUI CXX)
 
 # C++标准要求
-set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD 20)
 
 # 设置编译库文件版本后缀
 set(CMAKE_DEBUG_POSTFIX "d" CACHE STRING "add a postfix, usually d on windows")
diff --git a/Readme.md b/Readme.md
index c492d01..6070491 100644
--- a/Readme.md
+++ b/Readme.md
@@ -11,6 +11,8 @@
 
 # 如何编译GacUI
 
+**注意:最新版本(>=1.0.3.0)需要编译器支持C++20标准**
+
 1. 克隆项目，注意要递归下载GacUI源码
 
 ```bash