diff --git a/lower-constraints.txt b/lower-constraints.txt
index 536e8b61ed..7cb89b053b 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -85,7 +85,6 @@ stestr==2.0.0
 stevedore==1.28.0
 testtools==2.3.0
 traceback2==1.4.0
-unittest2==1.1.0
 urllib3==1.22
 voluptuous==0.11.1
 wrapt==1.10.11
diff --git a/test/functional/s3api/__init__.py b/test/functional/s3api/__init__.py
index 4cec6dd9b0..db443db80f 100644
--- a/test/functional/s3api/__init__.py
+++ b/test/functional/s3api/__init__.py
@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import unittest2
+import unittest
 import traceback
 import test.functional as tf
 from test.functional.s3api.s3_test_client import (
@@ -28,7 +28,7 @@ def tearDownModule():
     tf.teardown_package()
 
 
-class S3ApiBase(unittest2.TestCase):
+class S3ApiBase(unittest.TestCase):
     def __init__(self, method_name):
         super(S3ApiBase, self).__init__(method_name)
         self.method_name = method_name
diff --git a/test/functional/s3api/test_acl.py b/test/functional/s3api/test_acl.py
index 1bde54767e..610efe0a90 100644
--- a/test/functional/s3api/test_acl.py
+++ b/test/functional/s3api/test_acl.py
@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import unittest2
+import unittest
 import os
 import test.functional as tf
 from swift.common.middleware.s3api.etree import fromstring
@@ -155,4 +155,4 @@ class TestS3AclSigV4(TestS3Acl):
 
 
 if __name__ == '__main__':
-    unittest2.main()
+    unittest.main()
diff --git a/test/functional/s3api/test_bucket.py b/test/functional/s3api/test_bucket.py
index d246e7baec..2197ce823b 100644
--- a/test/functional/s3api/test_bucket.py
+++ b/test/functional/s3api/test_bucket.py
@@ -15,7 +15,7 @@
 
 import botocore
 import datetime
-import unittest2
+import unittest
 import os
 
 import test.functional as tf
@@ -472,4 +472,4 @@ class TestS3ApiBucketSigV4(TestS3ApiBucket):
 
 
 if __name__ == '__main__':
-    unittest2.main()
+    unittest.main()
diff --git a/test/functional/s3api/test_multi_delete.py b/test/functional/s3api/test_multi_delete.py
index 1c73077033..c0938fa023 100644
--- a/test/functional/s3api/test_multi_delete.py
+++ b/test/functional/s3api/test_multi_delete.py
@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import unittest2
+import unittest
 import os
 import test.functional as tf
 from swift.common.middleware.s3api.etree import fromstring, tostring, Element, \
@@ -240,4 +240,4 @@ class TestS3ApiMultiDeleteSigV4(TestS3ApiMultiDelete):
 
 
 if __name__ == '__main__':
-    unittest2.main()
+    unittest.main()
diff --git a/test/functional/s3api/test_multi_upload.py b/test/functional/s3api/test_multi_upload.py
index 7132bbad58..ae01e0977a 100644
--- a/test/functional/s3api/test_multi_upload.py
+++ b/test/functional/s3api/test_multi_upload.py
@@ -15,7 +15,7 @@
 
 import base64
 import binascii
-import unittest2
+import unittest
 import os
 import boto
 
@@ -971,4 +971,4 @@ class TestS3ApiMultiUploadSigV4(TestS3ApiMultiUpload):
         self.assertEqual(status, 204)  # sanity
 
 if __name__ == '__main__':
-    unittest2.main()
+    unittest.main()
diff --git a/test/functional/s3api/test_object.py b/test/functional/s3api/test_object.py
index 3f0318a5bf..ac2eef3505 100644
--- a/test/functional/s3api/test_object.py
+++ b/test/functional/s3api/test_object.py
@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import unittest2
+import unittest
 import os
 import boto
 
@@ -873,35 +873,35 @@ class TestS3ApiObjectSigV4(TestS3ApiObject):
     def setUp(self):
         super(TestS3ApiObjectSigV4, self).setUp()
 
-    @unittest2.skipIf(StrictVersion(boto.__version__) < StrictVersion('3.0'),
-                      'This stuff got the signing issue of boto<=2.x')
+    @unittest.skipIf(StrictVersion(boto.__version__) < StrictVersion('3.0'),
+                     'This stuff got the signing issue of boto<=2.x')
     def test_put_object_metadata(self):
         super(TestS3ApiObjectSigV4, self).test_put_object_metadata()
 
-    @unittest2.skipIf(StrictVersion(boto.__version__) < StrictVersion('3.0'),
-                      'This stuff got the signing issue of boto<=2.x')
+    @unittest.skipIf(StrictVersion(boto.__version__) < StrictVersion('3.0'),
+                     'This stuff got the signing issue of boto<=2.x')
     def test_put_object_copy_source_if_modified_since(self):
         super(TestS3ApiObjectSigV4, self).\
             test_put_object_copy_source_if_modified_since()
 
-    @unittest2.skipIf(StrictVersion(boto.__version__) < StrictVersion('3.0'),
-                      'This stuff got the signing issue of boto<=2.x')
+    @unittest.skipIf(StrictVersion(boto.__version__) < StrictVersion('3.0'),
+                     'This stuff got the signing issue of boto<=2.x')
     def test_put_object_copy_source_if_unmodified_since(self):
         super(TestS3ApiObjectSigV4, self).\
             test_put_object_copy_source_if_unmodified_since()
 
-    @unittest2.skipIf(StrictVersion(boto.__version__) < StrictVersion('3.0'),
-                      'This stuff got the signing issue of boto<=2.x')
+    @unittest.skipIf(StrictVersion(boto.__version__) < StrictVersion('3.0'),
+                     'This stuff got the signing issue of boto<=2.x')
     def test_put_object_copy_source_if_match(self):
         super(TestS3ApiObjectSigV4,
               self).test_put_object_copy_source_if_match()
 
-    @unittest2.skipIf(StrictVersion(boto.__version__) < StrictVersion('3.0'),
-                      'This stuff got the signing issue of boto<=2.x')
+    @unittest.skipIf(StrictVersion(boto.__version__) < StrictVersion('3.0'),
+                     'This stuff got the signing issue of boto<=2.x')
     def test_put_object_copy_source_if_none_match(self):
         super(TestS3ApiObjectSigV4,
               self).test_put_object_copy_source_if_none_match()
 
 
 if __name__ == '__main__':
-    unittest2.main()
+    unittest.main()
diff --git a/test/functional/s3api/test_service.py b/test/functional/s3api/test_service.py
index 1df7ca3de2..4fd8e74666 100644
--- a/test/functional/s3api/test_service.py
+++ b/test/functional/s3api/test_service.py
@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import unittest2
+import unittest
 import os
 
 import test.functional as tf
@@ -97,4 +97,4 @@ class TestS3ApiServiceSigV4(TestS3ApiService):
         super(TestS3ApiServiceSigV4, self).setUp()
 
 if __name__ == '__main__':
-    unittest2.main()
+    unittest.main()
diff --git a/test/functional/swift_test_client.py b/test/functional/swift_test_client.py
index 2de9736fe4..bd1b42f5ba 100644
--- a/test/functional/swift_test_client.py
+++ b/test/functional/swift_test_client.py
@@ -22,7 +22,7 @@ import sys
 import socket
 import time
 
-from unittest2 import SkipTest
+from unittest import SkipTest
 from xml.dom import minidom
 
 import six
diff --git a/test/functional/test_account.py b/test/functional/test_account.py
index 2f367e27e6..b4598dd084 100644
--- a/test/functional/test_account.py
+++ b/test/functional/test_account.py
@@ -15,7 +15,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import unittest2
+import unittest
 import json
 from uuid import uuid4
 from string import ascii_letters
@@ -38,7 +38,7 @@ def tearDownModule():
     tf.teardown_package()
 
 
-class TestAccount(unittest2.TestCase):
+class TestAccount(unittest.TestCase):
     existing_metadata = None
 
     @classmethod
@@ -888,7 +888,7 @@ class TestAccount(unittest2.TestCase):
         self.assertEqual(resp.status, 400)
 
 
-class TestAccountInNonDefaultDomain(unittest2.TestCase):
+class TestAccountInNonDefaultDomain(unittest.TestCase):
     def setUp(self):
         if tf.skip or tf.skip2 or tf.skip_if_not_v3:
             raise SkipTest('AUTH VERSION 3 SPECIFIC TEST')
@@ -917,4 +917,4 @@ class TestAccountInNonDefaultDomain(unittest2.TestCase):
 
 
 if __name__ == '__main__':
-    unittest2.main()
+    unittest.main()
diff --git a/test/functional/test_container.py b/test/functional/test_container.py
index 9dc932512d..4fdbe27f31 100644
--- a/test/functional/test_container.py
+++ b/test/functional/test_container.py
@@ -16,7 +16,7 @@
 # limitations under the License.
 
 import json
-import unittest2
+import unittest
 from uuid import uuid4
 
 from test.functional import check_response, cluster_info, retry, \
@@ -35,7 +35,7 @@ def tearDownModule():
     tf.teardown_package()
 
 
-class TestContainer(unittest2.TestCase):
+class TestContainer(unittest.TestCase):
 
     def setUp(self):
         if tf.skip:
@@ -1652,7 +1652,7 @@ class TestContainer(unittest2.TestCase):
         self.assertEqual(body, b'0123456789')
 
 
-class BaseTestContainerACLs(unittest2.TestCase):
+class BaseTestContainerACLs(unittest.TestCase):
     # subclasses can change the account in which container
     # is created/deleted by setUp/tearDown
     account = 1
@@ -1827,4 +1827,4 @@ class TestContainerACLsAccount4(BaseTestContainerACLs):
 
 
 if __name__ == '__main__':
-    unittest2.main()
+    unittest.main()
diff --git a/test/functional/test_domain_remap.py b/test/functional/test_domain_remap.py
index b8ea9dc6e4..eaaeecc2bc 100644
--- a/test/functional/test_domain_remap.py
+++ b/test/functional/test_domain_remap.py
@@ -14,7 +14,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from unittest2 import SkipTest
+from unittest import SkipTest
 import six
 
 import test.functional as tf
diff --git a/test/functional/test_object.py b/test/functional/test_object.py
index befa21308f..c60b953c0e 100644
--- a/test/functional/test_object.py
+++ b/test/functional/test_object.py
@@ -17,7 +17,7 @@
 
 import datetime
 import json
-import unittest2
+import unittest
 from uuid import uuid4
 import time
 from xml.dom import minidom
@@ -38,7 +38,7 @@ def tearDownModule():
     tf.teardown_package()
 
 
-class TestObject(unittest2.TestCase):
+class TestObject(unittest.TestCase):
 
     def setUp(self):
         if tf.skip or tf.skip2:
@@ -1698,4 +1698,4 @@ class TestObject(unittest2.TestCase):
 
 
 if __name__ == '__main__':
-    unittest2.main()
+    unittest.main()
diff --git a/test/functional/test_staticweb.py b/test/functional/test_staticweb.py
index b266378327..446eff2c63 100644
--- a/test/functional/test_staticweb.py
+++ b/test/functional/test_staticweb.py
@@ -16,7 +16,7 @@
 
 import functools
 import six
-from unittest2 import SkipTest
+from unittest import SkipTest
 from six.moves.urllib.parse import unquote
 from swift.common.utils import quote
 import test.functional as tf
diff --git a/test/functional/test_symlink.py b/test/functional/test_symlink.py
index aacca5b044..0a58faca46 100755
--- a/test/functional/test_symlink.py
+++ b/test/functional/test_symlink.py
@@ -15,7 +15,7 @@
 # limitations under the License.
 
 import hmac
-import unittest2
+import unittest
 import itertools
 import hashlib
 import six
@@ -2452,4 +2452,4 @@ class TestSymlinkContainerTempurl(Base):
 
 
 if __name__ == '__main__':
-    unittest2.main()
+    unittest.main()
diff --git a/test/functional/test_versioned_writes.py b/test/functional/test_versioned_writes.py
index d103a8ca47..d58da88e62 100644
--- a/test/functional/test_versioned_writes.py
+++ b/test/functional/test_versioned_writes.py
@@ -17,7 +17,7 @@
 from copy import deepcopy
 import json
 import time
-import unittest2
+import unittest
 import six
 from six.moves.urllib.parse import quote, unquote
 
@@ -968,7 +968,7 @@ class TestObjectVersioningHistoryModeUTF8(
     pass
 
 
-class TestSloWithVersioning(unittest2.TestCase):
+class TestSloWithVersioning(unittest.TestCase):
 
     def setUp(self):
         if 'slo' not in cluster_info:
diff --git a/test/functional/tests.py b/test/functional/tests.py
index 10fdb8197d..8ca4f37e64 100644
--- a/test/functional/tests.py
+++ b/test/functional/tests.py
@@ -22,7 +22,7 @@ import random
 import six
 from six.moves import urllib
 import time
-import unittest2
+import unittest
 import uuid
 from copy import deepcopy
 import eventlet
@@ -93,7 +93,7 @@ class BaseEnv(object):
         pass
 
 
-class Base(unittest2.TestCase):
+class Base(unittest.TestCase):
     env = BaseEnv
 
     @classmethod
@@ -2854,7 +2854,7 @@ class TestFileComparisonUTF8(Base2, TestFileComparison):
     pass
 
 
-class TestServiceToken(unittest2.TestCase):
+class TestServiceToken(unittest.TestCase):
 
     def setUp(self):
         if tf.skip_service_tokens:
@@ -3025,4 +3025,4 @@ class TestServiceToken(unittest2.TestCase):
 
 
 if __name__ == '__main__':
-    unittest2.main()
+    unittest.main()
diff --git a/test/unit/__init__.py b/test/unit/__init__.py
index c81d181fea..5e6f5e99d7 100644
--- a/test/unit/__init__.py
+++ b/test/unit/__init__.py
@@ -59,10 +59,9 @@ from gzip import GzipFile
 import mock as mocklib
 import inspect
 import unittest
-import unittest2
 
 
-class SkipTest(unittest2.SkipTest, unittest.SkipTest):
+class SkipTest(unittest.SkipTest):
     pass
 
 EMPTY_ETAG = md5().hexdigest()