diff --git a/README.md b/README.md
index c7ee4d1..e9eb358 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 update domain record using AliCloud Go SDK.
 
 ### Usage
-- First, install Aliyun Go SDK by running `go get github.com/aliyun/alibaba-cloud-sdk-go/services/alidns`.
+- First, install Aliyun Go SDK by running `go get -u github.com/aliyun/alibaba-cloud-sdk-go/sdk`.
 - Create a AccessKey at https://usercenter.console.aliyun.com/.
 - Fill in `config.json` the AccessKey, secret, and the domain you'd setup.
 - To compile, just run `go build alidns.go`. *Run `go mod init alidns` first if needed.*