diff --git a/v5_ws_public.go b/v5_ws_public.go
index 269d29a..b182b36 100644
--- a/v5_ws_public.go
+++ b/v5_ws_public.go
@@ -234,7 +234,7 @@ func (s *V5WebsocketPublicService) Run() error {
 
 // Ping :
 func (s *V5WebsocketPublicService) Ping() error {
-	if err := s.writeMessage(websocket.PingMessage, nil); err != nil {
+	if err := s.writeMessage(websocket.TextMessage, []byte(`{"op":"ping"}`)); err != nil {
 		return err
 	}
 	return nil