diff --git a/vnpy/app/cta_strategy/ui/widget.py b/vnpy/app/cta_strategy/ui/widget.py
index e2511b9e..e4f2df1e 100644
--- a/vnpy/app/cta_strategy/ui/widget.py
+++ b/vnpy/app/cta_strategy/ui/widget.py
@@ -1,5 +1,3 @@
-from typing import Any
-
 from vnpy.event import Event, EventEngine
 from vnpy.trader.engine import MainEngine
 from vnpy.trader.ui import QtCore, QtGui, QtWidgets