diff --git a/setup.py b/setup.py
index c9bf19b9a..703f840fd 100644
--- a/setup.py
+++ b/setup.py
@@ -12,7 +12,7 @@ from setuptools import find_packages, setup, Extension
 NAME = "pyqlib"
 DESCRIPTION = "A Quantitative-research Platform"
 REQUIRES_PYTHON = ">=3.5.0"
-VERSION = "0.5.0.dev6"
+VERSION = "0.5.0.dev7"
 
 # Detect Cython
 try: