diff --git a/oslotest/__init__.py b/oslotest/__init__.py
index e3f05f9..e69de29 100644
--- a/oslotest/__init__.py
+++ b/oslotest/__init__.py
@@ -1,16 +0,0 @@
-#    Licensed under the Apache License, Version 2.0 (the "License"); you may
-#    not use this file except in compliance with the License. You may obtain
-#    a copy of the License at
-#
-#         http://www.apache.org/licenses/LICENSE-2.0
-#
-#    Unless required by applicable law or agreed to in writing, software
-#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-#    License for the specific language governing permissions and limitations
-#    under the License.
-
-import six
-
-
-six.add_move(six.MovedModule('mock', 'mock', 'unittest.mock'))
diff --git a/oslotest/createfile.py b/oslotest/createfile.py
index 86fa8b2..8f5b98f 100644
--- a/oslotest/createfile.py
+++ b/oslotest/createfile.py
@@ -14,7 +14,6 @@ import os
 import tempfile
 
 import fixtures
-import six
 
 
 class CreateFileWithContent(fixtures.Fixture):
@@ -56,7 +55,7 @@ class CreateFileWithContent(fixtures.Fixture):
     def setUp(self):
         super(CreateFileWithContent, self).setUp()
         contents = self._contents
-        if isinstance(contents, six.text_type):
+        if isinstance(contents, str):
             contents = contents.encode(self._encoding)
         if not os.path.isabs(self._filename):
             (fd, self.path) = tempfile.mkstemp(prefix=self._filename,
diff --git a/oslotest/tests/__init__.py b/oslotest/tests/__init__.py
index e3f05f9..e69de29 100644
--- a/oslotest/tests/__init__.py
+++ b/oslotest/tests/__init__.py
@@ -1,16 +0,0 @@
-#    Licensed under the Apache License, Version 2.0 (the "License"); you may
-#    not use this file except in compliance with the License. You may obtain
-#    a copy of the License at
-#
-#         http://www.apache.org/licenses/LICENSE-2.0
-#
-#    Unless required by applicable law or agreed to in writing, software
-#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-#    License for the specific language governing permissions and limitations
-#    under the License.
-
-import six
-
-
-six.add_move(six.MovedModule('mock', 'mock', 'unittest.mock'))
diff --git a/oslotest/tests/unit/test_base.py b/oslotest/tests/unit/test_base.py
index 63c66b6..8a39c34 100644
--- a/oslotest/tests/unit/test_base.py
+++ b/oslotest/tests/unit/test_base.py
@@ -20,7 +20,6 @@ import unittest
 from unittest import mock
 
 import fixtures
-import six
 import testtools
 
 from oslotest import base
@@ -142,7 +141,7 @@ class TestTempFiles(base.BaseTestCase):
         self.assertEqual(1, len(temps))
         with open(temps[0], 'rb') as f:
             contents = f.read()
-        self.assertEqual('ಠ_ಠ', six.text_type(contents, encoding='utf-8'))
+        self.assertEqual('ಠ_ಠ', str(contents, encoding='utf-8'))
 
     def test_create_unicode_files_encoding(self):
         files = [["embarrassed", '⊙﹏⊙', 'utf-8']]
@@ -150,7 +149,7 @@ class TestTempFiles(base.BaseTestCase):
         self.assertEqual(1, len(temps))
         with open(temps[0], 'rb') as f:
             contents = f.read()
-        self.assertEqual('⊙﹏⊙', six.text_type(contents, encoding='utf-8'))
+        self.assertEqual('⊙﹏⊙', str(contents, encoding='utf-8'))
 
     def test_create_unicode_files_multi_encoding(self):
         files = [
@@ -162,10 +161,9 @@ class TestTempFiles(base.BaseTestCase):
         for i, (basename, raw_contents, raw_encoding) in enumerate(files):
             with open(temps[i], 'rb') as f:
                 contents = f.read()
-            if not isinstance(raw_contents, six.text_type):
-                raw_contents = six.text_type(raw_contents,
-                                             encoding=raw_encoding)
-            self.assertEqual(six.text_type(contents, encoding=raw_encoding),
+            if not isinstance(raw_contents, str):
+                raw_contents = str(raw_contents, encoding=raw_encoding)
+            self.assertEqual(str(contents, encoding=raw_encoding),
                              raw_contents)
 
     def test_create_bad_encoding(self):
diff --git a/oslotest/tests/unit/test_createfile.py b/oslotest/tests/unit/test_createfile.py
index c16d409..15b37c6 100644
--- a/oslotest/tests/unit/test_createfile.py
+++ b/oslotest/tests/unit/test_createfile.py
@@ -16,8 +16,6 @@
 
 import os
 
-import six
-
 from oslotest import base
 from oslotest import createfile
 
@@ -32,7 +30,7 @@ class CreateFileWithContentTest(base.BaseTestCase):
         f.setUp()
         with open(f.path, 'rb') as f:
             contents = f.read()
-        self.assertEqual('ಠ_ಠ', six.text_type(contents, encoding='utf-8'))
+        self.assertEqual('ಠ_ಠ', str(contents, encoding='utf-8'))
 
     def test_create_unicode_files_encoding(self):
         f = createfile.CreateFileWithContent(
@@ -41,7 +39,7 @@ class CreateFileWithContentTest(base.BaseTestCase):
         f.setUp()
         with open(f.path, 'rb') as f:
             contents = f.read()
-        self.assertEqual('⊙﹏⊙', six.text_type(contents, encoding='utf-8'))
+        self.assertEqual('⊙﹏⊙', str(contents, encoding='utf-8'))
 
     def test_create_bad_encoding(self):
         f = createfile.CreateFileWithContent(
diff --git a/requirements.txt b/requirements.txt
index 32baed1..81463cc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,8 +1,3 @@
-# The order of packages is significant, because pip processes them in the order
-# of appearance. Changing the order has an impact on the overall integration
-# process, which may cause wedges in the gate later.
-
 fixtures>=3.0.0 # Apache-2.0/BSD
 python-subunit>=1.0.0 # Apache-2.0/BSD
-six>=1.10.0 # MIT
 testtools>=2.2.0 # MIT
diff --git a/tox.ini b/tox.ini
index 998a759..36c84ef 100644
--- a/tox.ini
+++ b/tox.ini
@@ -41,7 +41,3 @@ commands = sphinx-build -a -E -W -d releasenotes/build/doctrees -b html releasen
 [flake8]
 show-source = true
 exclude = .tox,dist,doc,*.egg,build
-
-[hacking]
-import_exceptions =
-  six.moves.mock