diff --git a/release/build.py b/release/build.py
index f45efc1c4..7d0d52dc6 100755
--- a/release/build.py
+++ b/release/build.py
@@ -1,6 +1,6 @@
 #!/usr/bin/env python
 
-from __future__ import (absolute_import, print_function, division, unicode_literals)
+from __future__ import (absolute_import, print_function, division)
 from contextlib import contextmanager
 from os.path import dirname, realpath, join, exists, normpath
 import os