diff --git a/lower-constraints.txt b/lower-constraints.txt
index 6c41cb0a..65af77a5 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -10,9 +10,9 @@ eventlet==0.18.2
 extras==1.0.0
 fasteners==0.7.0
 fixtures==3.0.0
-flake8==2.5.5
+flake8==2.6.0
 greenlet==0.4.10
-hacking==0.12.0
+hacking==1.1.0
 imagesize==0.7.1
 iso8601==0.1.11
 Jinja2==2.10
diff --git a/os_win/tests/unit/test_hacking.py b/os_win/tests/unit/test_hacking.py
index 5b153519..443f51bc 100644
--- a/os_win/tests/unit/test_hacking.py
+++ b/os_win/tests/unit/test_hacking.py
@@ -18,7 +18,7 @@ import os
 import textwrap
 
 import mock
-import pep8
+import pycodestyle
 
 from os_win._hacking import checks
 from os_win.tests.unit import test_base
@@ -58,20 +58,20 @@ class HackingTestCase(test_base.OsWinBaseTestCase):
     """
 
     def _run_check(self, code, checker, filename=None):
-        # We are patching pep8 so that only the check under test is actually
-        # installed.
+        # We are patching pycodestyle (pep8) so that only the check under test
+        # is actually installed.
         mock_checks = {'physical_line': {}, 'logical_line': {}, 'tree': {}}
-        with mock.patch('pep8._checks', mock_checks):
-            pep8.register_check(checker)
+        with mock.patch('pycodestyle._checks', mock_checks):
+            pycodestyle.register_check(checker)
 
             lines = textwrap.dedent(code).strip().splitlines(True)
 
-            checker = pep8.Checker(filename=filename, lines=lines)
+            checker = pycodestyle.Checker(filename=filename, lines=lines)
             # NOTE(sdague): the standard reporter has printing to stdout
             # as a normal part of check_all, which bleeds through to the
             # test output stream in an unhelpful way. This blocks that
             # printing.
-            with mock.patch('pep8.StandardReport.get_file_results'):
+            with mock.patch('pycodestyle.StandardReport.get_file_results'):
                 checker.check_all()
             checker.report._deferred_print.sort()
             return checker.report._deferred_print
diff --git a/os_win/utils/baseutils.py b/os_win/utils/baseutils.py
index 5aa304dc..d9f2b146 100644
--- a/os_win/utils/baseutils.py
+++ b/os_win/utils/baseutils.py
@@ -23,12 +23,12 @@ import sys
 import threading
 import time
 
-if sys.platform == 'win32':
-    import wmi
-
 from oslo_log import log as logging
 from oslo_utils import reflection
 
+if sys.platform == 'win32':
+    import wmi
+
 LOG = logging.getLogger(__name__)
 
 
diff --git a/test-requirements.txt b/test-requirements.txt
index 48a42323..f399d41f 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -2,7 +2,7 @@
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
 
-hacking!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
+hacking>=1.1.0,<1.2.0 # Apache-2.0
 
 coverage!=4.4,>=4.0 # Apache-2.0
 ddt>=1.0.1 # MIT