diff --git a/README.md b/README.md
index 43640dd5..0c43bcfe 100644
--- a/README.md
+++ b/README.md
@@ -158,7 +158,7 @@ To use the Dockerized version of the application, follow these steps:
 
 #### Prerequisites
 Make sure you have .NET Core 6.0 installed (Use ```dotnet --list-sdks``` to check,Prefer version **6.0.418**)
-- Simply install it with a single command (For example in Ubuntu ```sudo apt install dotnet-sdk-6.0```). This might download version 6.0.127, if incompatible, proceed to the next step.
+- Simply install it with a single command (For example in Ubuntu ```sudo apt install dotnet-sdk-6.0```). This might download version 6.0.127, you need to change the version parameter in global.json in the sdk root directory. if incompatible, proceed to the next step.
 - To install the specified version, please visit the [Microsoft .NET 6.0 Download website](https://dotnet.microsoft.com/zh-cn/download/dotnet/6.0) for more information.
 
 #### Installation process