diff --git a/README.md b/README.md
index c42e7af..859d51c 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@ Golang 腾讯IP定位库
 
 # 在线演示
 
-- [https://aite.xyz/tipdw](https://aite.xyz/tipdw)
+- [https://aite.xyz/demo/tipdw](https://aite.xyz/demo/tipdw)
 
 # 类似项目
 
diff --git a/go.mod b/go.mod
index bc6affa..0fcea3f 100644
--- a/go.mod
+++ b/go.mod
@@ -1,3 +1,3 @@
 module github.com/xiaoqidun/tipdw
 
-go 1.17
+go 1.19
diff --git a/tipdw.go b/tipdw.go
index e4c09ac..14aa0e9 100644
--- a/tipdw.go
+++ b/tipdw.go
@@ -3,7 +3,7 @@ package tipdw
 import (
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"sync"
 	"time"
@@ -63,7 +63,7 @@ func QueryIP(sk string, key string, ip string) (result Result, err error) {
 		return
 	}
 	defer resp.Body.Close()
-	body, err := ioutil.ReadAll(resp.Body)
+	body, err := io.ReadAll(resp.Body)
 	if err != nil {
 		return
 	}