diff --git a/src/server/engine/callback.go b/src/server/engine/callback.go
index 292acbca..c77d0a03 100644
--- a/src/server/engine/callback.go
+++ b/src/server/engine/callback.go
@@ -1,12 +1,15 @@
 package engine
 
 import (
+	"bytes"
+	"encoding/json"
+	"io/ioutil"
+	"net/http"
 	"strconv"
 	"strings"
 	"time"
 
 	"github.com/toolkits/pkg/logger"
-	"github.com/toolkits/pkg/net/httplib"
 
 	"github.com/didi/nightingale/v5/src/models"
 	"github.com/didi/nightingale/v5/src/pkg/ibex"
@@ -14,6 +17,39 @@ import (
 	"github.com/didi/nightingale/v5/src/server/memsto"
 )
 
+func PostJSON(url string, timeout time.Duration, v interface{}) (response []byte, code int, err error) {
+	var bs []byte
+
+	bs, err = json.Marshal(v)
+	if err != nil {
+		return
+	}
+
+	bf := bytes.NewBuffer(bs)
+
+	client := http.Client{
+		Timeout: timeout,
+	}
+
+	req, err := http.NewRequest("POST", url, bf)
+	req.Header.Set("Content-Type", "application/json")
+
+	var resp *http.Response
+	resp, err = client.Do(req)
+	if err != nil {
+		return
+	}
+
+	code = resp.StatusCode
+
+	if resp.Body != nil {
+		defer resp.Body.Close()
+		response, err = ioutil.ReadAll(resp.Body)
+	}
+
+	return
+}
+
 func callback(event *models.AlertCurEvent) {
 	urls := strings.Fields(event.Callbacks)
 	for _, url := range urls {
@@ -21,8 +57,10 @@ func callback(event *models.AlertCurEvent) {
 			continue
 		}
 
-		if strings.HasPrefix(url, "${ibex}") && !event.IsRecovered {
-			handleIbex(url, event)
+		if strings.HasPrefix(url, "${ibex}") {
+			if !event.IsRecovered {
+				handleIbex(url, event)
+			}
 			continue
 		}
 
@@ -30,7 +68,7 @@ func callback(event *models.AlertCurEvent) {
 			url = "http://" + url
 		}
 
-		resp, code, err := httplib.PostJSON(url, 5*time.Second, event, map[string]string{})
+		resp, code, err := PostJSON(url, 5*time.Second, event)
 		if err != nil {
 			logger.Errorf("event_callback(rule_id=%d url=%s) fail, resp: %s, err: %v, code: %d", event.RuleId, url, string(resp), err, code)
 		} else {