diff --git a/setup.py b/setup.py
index 73f2540..8d6f3c3 100644
--- a/setup.py
+++ b/setup.py
@@ -1,19 +1,13 @@
 # -*- coding: utf-8 -*-
-import textwrap
+import os
 
 from setuptools import setup
 
-setup(
-    use_scm_version={
-        "write_to": "src/tox/version.py",
-        "write_to_template": textwrap.dedent(
-            """
-             # coding: utf-8
-             from __future__ import unicode_literals
+VERSION = os.environ['PV']
+with open('src/tox/version.py', 'wt') as fp:
+    fp.write("__version__ = u'{}'".format(VERSION))
 
-             __version__ = {version!r}
-             """
-        ).lstrip(),
-    },
+setup(
+    version=VERSION,
     package_dir={"": "src"},
 )