diff --git a/sjtrade/__init__.py b/sjtrade/__init__.py
index 0a512d5..1222bdb 100644
--- a/sjtrade/__init__.py
+++ b/sjtrade/__init__.py
@@ -2,7 +2,7 @@
 trading with shioaji
 """
 
-__version__ = "0.4.1"
+__version__ = "0.4.2"
 
 def inject_env():
     import os