diff --git a/vnpy/trader/uiQt.py b/vnpy/trader/uiQt.py
index d26813b6..2fa5ae4a 100644
--- a/vnpy/trader/uiQt.py
+++ b/vnpy/trader/uiQt.py
@@ -25,7 +25,7 @@ def createQApp():
     if globalSetting['darkStyle']:
         try:
             import qdarkstyle
-            qApp.setStyleSheet(qdarkstyle.load_stylesheet())
+            qApp.setStyleSheet(qdarkstyle.load_stylesheet_pyqt5())
         except :
             print "Unexpected error:", sys.exc_info()[0]