diff --git a/model/request_model.go b/model/request_model.go
index 9fa8329..29d753a 100644
--- a/model/request_model.go
+++ b/model/request_model.go
@@ -94,6 +94,15 @@ func (r *Request) GetBody() (body io.Reader) {
 	return strings.NewReader(r.Body)
 }
 
+// CopyHeaders copy Headers
+func (r *Request) CopyHeaders() map[string]string {
+	var result = make(map[string]string, len(r.Headers))
+	for k, v := range r.Headers {
+		result[k] = v
+	}
+	return result
+}
+
 // getVerifyKey 获取校验 key
 func (r *Request) getVerifyKey() (key string) {
 	return fmt.Sprintf("%s.%s", r.Form, r.Verify)
diff --git a/server/client/http_client.go b/server/client/http_client.go
index 1cf2c7f..2914937 100644
--- a/server/client/http_client.go
+++ b/server/client/http_client.go
@@ -29,7 +29,7 @@ func HTTPRequest(chanID uint64, request *model.Request) (resp *http.Response, re
 	url := request.URL
 	body := request.GetBody()
 	timeout := request.Timeout
-	headers := request.Headers
+	headers := request.CopyHeaders()
 
 	req, err := http.NewRequest(method, url, body)
 	if err != nil {