diff --git a/okx/websocket/WsPrivate.py b/okx/websocket/WsPrivate.py
index 7dd8433..e31a5af 100644
--- a/okx/websocket/WsPrivate.py
+++ b/okx/websocket/WsPrivate.py
@@ -2,8 +2,8 @@ import time
 
 from twisted.internet import reactor
 
-import WsUtils
-from WsConnectManager import WsConnectManager
+from . import WsUtils
+from .WsConnectManager import WsConnectManager
 
 
 class WsPrivate(WsConnectManager):