diff --git a/server/http.go b/server/http.go
index 3d6f521..2aca120 100644
--- a/server/http.go
+++ b/server/http.go
@@ -236,17 +236,26 @@ func (c *HTTPClient) onBotPushEvent(e *coolq.Event) {
 	}
 
 	client := http.Client{Timeout: time.Second * time.Duration(c.timeout)}
-	req, _ := http.NewRequest("POST", c.addr, bytes.NewReader(e.JSONBytes()))
-	req.Header.Set("X-Self-ID", strconv.FormatInt(c.bot.Client.Uin, 10))
-	req.Header.Set("User-Agent", "CQHttp/4.15.0")
-	req.Header.Set("Content-Type", "application/json")
-	if c.secret != "" {
-		mac := hmac.New(sha1.New, []byte(c.secret))
-		_, _ = mac.Write(e.JSONBytes())
-		req.Header.Set("X-Signature", "sha1="+hex.EncodeToString(mac.Sum(nil)))
-	}
-	if c.apiPort != 0 {
-		req.Header.Set("X-API-Port", strconv.FormatInt(int64(c.apiPort), 10))
+
+	// see https://stackoverflow.com/questions/31337891/net-http-http-contentlength-222-with-body-length-0
+	// we should create a new request for every single post trial
+	createRequest := func() (*http.Request, error) {
+		req, err := http.NewRequest("POST", c.addr, bytes.NewReader(e.JSONBytes()))
+		if err != nil {
+			return nil, err
+		}
+		req.Header.Set("X-Self-ID", strconv.FormatInt(c.bot.Client.Uin, 10))
+		req.Header.Set("User-Agent", "CQHttp/4.15.0")
+		req.Header.Set("Content-Type", "application/json")
+		if c.secret != "" {
+			mac := hmac.New(sha1.New, []byte(c.secret))
+			_, _ = mac.Write(e.JSONBytes())
+			req.Header.Set("X-Signature", "sha1="+hex.EncodeToString(mac.Sum(nil)))
+		}
+		if c.apiPort != 0 {
+			req.Header.Set("X-API-Port", strconv.FormatInt(int64(c.apiPort), 10))
+		}
+		return req, nil
 	}
 
 	var res *http.Response
@@ -254,6 +263,12 @@ func (c *HTTPClient) onBotPushEvent(e *coolq.Event) {
 	const maxAttemptTimes = 5
 
 	for i := 0; i <= maxAttemptTimes; i++ {
+		req, err := createRequest()
+		if err != nil {
+			log.Warnf("上报 Event 数据到 %v 时创建请求失败: %v", c.addr, err)
+			return
+		}
+
 		res, err = client.Do(req)
 		if err == nil {
 			//goland:noinspection GoDeferInLoop