diff --git a/business/partner/purchase/im/im_server.go b/business/partner/purchase/im/im_server.go
index f49bd23fe..93b3a1c2a 100644
--- a/business/partner/purchase/im/im_server.go
+++ b/business/partner/purchase/im/im_server.go
@@ -36,8 +36,8 @@ func Init() {
 func StartWebSocket(w http.ResponseWriter, r *http.Request) {
 
 	conn, err := (&websocket.Upgrader{
-		ReadBufferSize:  1024,
-		WriteBufferSize: 1024,
+		ReadBufferSize:  8182,
+		WriteBufferSize: 8182,
 		// 允许所有CORS跨域请求
 		CheckOrigin: func(r *http.Request) bool {
 			return true