diff --git a/setup.py b/setup.py
index 6aff95297d65f8016b95522f1a5c4e3b9930ef8f..f5ef9304bcbf2900e1a70d4b2bedb65501384efd 100644
--- a/setup.py
+++ b/setup.py
@@ -3,7 +3,6 @@
 
 """The setup script."""
 
-from io import open
 from setuptools import setup, find_packages
 
 with open('README.rst', 'rt') as readme_file: