diff --git a/bin/swift-account-audit b/bin/swift-account-audit
index 93c8c8c044..703eec9953 100755
--- a/bin/swift-account-audit
+++ b/bin/swift-account-audit
@@ -20,7 +20,7 @@ from hashlib import md5
 import getopt
 from itertools import chain
 
-import simplejson
+import json
 from eventlet.greenpool import GreenPool
 from eventlet.event import Event
 from six.moves.urllib.parse import quote
@@ -176,7 +176,7 @@ class Auditor(object):
                         break
                     if node['id'] not in responses:
                         responses[node['id']] = dict(resp.getheaders())
-                    results = simplejson.loads(resp.read())
+                    results = json.loads(resp.read())
                 except Exception:
                     self.container_exceptions += 1
                     consistent = False
@@ -249,7 +249,7 @@ class Auditor(object):
                               " from %ss:%ss" %
                               (account, node['ip'], node['device']))
                         break
-                    results = simplejson.loads(resp.read())
+                    results = json.loads(resp.read())
                 except Exception:
                     self.account_exceptions += 1
                     consistent = False
diff --git a/bin/swift-dispersion-report b/bin/swift-dispersion-report
index b53d58e1a7..a1b5fdaab0 100755
--- a/bin/swift-dispersion-report
+++ b/bin/swift-dispersion-report
@@ -14,15 +14,12 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+import json
 from collections import defaultdict
 from six.moves.configparser import ConfigParser
 from optparse import OptionParser
 from sys import exit, stdout, stderr
 from time import time
-try:
-    import simplejson as json
-except ImportError:
-    import json
 
 from eventlet import GreenPool, hubs, patcher, Timeout
 from eventlet.pools import Pool
diff --git a/doc/source/development_saio.rst b/doc/source/development_saio.rst
index d4b9016b88..1a282983b6 100644
--- a/doc/source/development_saio.rst
+++ b/doc/source/development_saio.rst
@@ -39,7 +39,7 @@ Installing dependencies
         sudo apt-get install curl gcc memcached rsync sqlite3 xfsprogs \
                              git-core libffi-dev python-setuptools
         sudo apt-get install python-coverage python-dev python-nose \
-                             python-simplejson python-xattr python-eventlet \
+                             python-xattr python-eventlet \
                              python-greenlet python-pastedeploy \
                              python-netifaces python-pip python-dnspython \
                              python-mock
@@ -50,14 +50,14 @@ Installing dependencies
         sudo yum install curl gcc memcached rsync sqlite xfsprogs git-core \
                          libffi-devel xinetd python-setuptools \
                          python-coverage python-devel python-nose \
-                         python-simplejson pyxattr python-eventlet \
+                         pyxattr python-eventlet \
                          python-greenlet python-paste-deploy \
                          python-netifaces python-pip python-dns \
                          python-mock
 
   Note: This installs necessary system dependencies and *most* of the python
   dependencies. Later in the process setuptools/distribute or pip will install
-  and/or upgrade packages. 
+  and/or upgrade packages.
 
 Next, choose either :ref:`partition-section` or :ref:`loopback-section`.
 
diff --git a/requirements.txt b/requirements.txt
index bac2dd236b..afbbe17b05 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,6 @@ eventlet>=0.16.1,!=0.17.0
 greenlet>=0.3.1
 netifaces>=0.5,!=0.10.0,!=0.10.1
 pastedeploy>=1.3.3
-simplejson>=2.0.9
 six>=1.9.0
 xattr>=0.4
 PyECLib==1.0.7                          # BSD
diff --git a/swift/account/utils.py b/swift/account/utils.py
index d9b2b77396..2baade9c55 100644
--- a/swift/account/utils.py
+++ b/swift/account/utils.py
@@ -13,11 +13,12 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+import json
 import time
 from xml.sax import saxutils
 
 from swift.common.swob import HTTPOk, HTTPNoContent
-from swift.common.utils import json, Timestamp
+from swift.common.utils import Timestamp
 from swift.common.storage_policy import POLICIES
 
 
diff --git a/swift/common/db.py b/swift/common/db.py
index ca6b12d80f..cead803375 100644
--- a/swift/common/db.py
+++ b/swift/common/db.py
@@ -17,6 +17,7 @@
 
 from contextlib import contextmanager, closing
 import hashlib
+import json
 import logging
 import os
 from uuid import uuid4
@@ -32,7 +33,7 @@ from eventlet import sleep, Timeout
 import sqlite3
 
 from swift.common.constraints import MAX_META_COUNT, MAX_META_OVERALL_SIZE
-from swift.common.utils import json, Timestamp, renamer, \
+from swift.common.utils import Timestamp, renamer, \
     mkdirs, lock_parent_directory, fallocate
 from swift.common.exceptions import LockTimeout
 from swift.common.swob import HTTPBadRequest
diff --git a/swift/common/direct_client.py b/swift/common/direct_client.py
index b262ebce62..2f7a1fa675 100644
--- a/swift/common/direct_client.py
+++ b/swift/common/direct_client.py
@@ -18,6 +18,7 @@ Internal client library for making calls directly to the servers rather than
 through the proxy.
 """
 
+import json
 import os
 import socket
 from time import time
@@ -34,11 +35,6 @@ from swift.common.http import HTTP_NO_CONTENT, HTTP_INSUFFICIENT_STORAGE, \
 from swift.common.swob import HeaderKeyDict
 from swift.common.utils import quote
 
-try:
-    import simplejson as json
-except ImportError:
-    import json
-
 
 class DirectClientException(ClientException):
 
diff --git a/swift/common/memcached.py b/swift/common/memcached.py
index f3d0eae5d6..5dc9e0b0fc 100644
--- a/swift/common/memcached.py
+++ b/swift/common/memcached.py
@@ -45,6 +45,7 @@ http://github.com/memcached/memcached/blob/1.4.2/doc/protocol.txt
 """
 
 import six.moves.cPickle as pickle
+import json
 import logging
 import time
 from bisect import bisect
@@ -56,7 +57,6 @@ from eventlet.pools import Pool
 from eventlet import Timeout
 from six.moves import range
 
-from swift.common.utils import json
 
 DEFAULT_MEMCACHED_PORT = 11211
 
diff --git a/swift/common/middleware/acl.py b/swift/common/middleware/acl.py
index 2aed09dd2c..ea2f392cae 100644
--- a/swift/common/middleware/acl.py
+++ b/swift/common/middleware/acl.py
@@ -13,7 +13,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from swift.common.utils import urlparse, json
+import json
+
+from swift.common.utils import urlparse
 
 
 def clean_acl(name, value):
diff --git a/swift/common/middleware/bulk.py b/swift/common/middleware/bulk.py
index aa135d8eb5..7fb227b457 100644
--- a/swift/common/middleware/bulk.py
+++ b/swift/common/middleware/bulk.py
@@ -13,6 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+import json
 from six.moves.urllib.parse import quote, unquote
 import tarfile
 from xml.sax import saxutils
@@ -23,7 +24,7 @@ from swift.common.swob import Request, HTTPBadGateway, \
     HTTPCreated, HTTPBadRequest, HTTPNotFound, HTTPUnauthorized, HTTPOk, \
     HTTPPreconditionFailed, HTTPRequestEntityTooLarge, HTTPNotAcceptable, \
     HTTPLengthRequired, HTTPException, HTTPServerError, wsgify
-from swift.common.utils import json, get_logger, register_swift_info
+from swift.common.utils import get_logger, register_swift_info
 from swift.common import constraints
 from swift.common.http import HTTP_UNAUTHORIZED, HTTP_NOT_FOUND, HTTP_CONFLICT
 
@@ -32,7 +33,7 @@ class CreateContainerError(Exception):
     def __init__(self, msg, status_int, status):
         self.status_int = status_int
         self.status = status
-        Exception.__init__(self, msg)
+        super(CreateContainerError, self).__init__(msg)
 
 
 ACCEPTABLE_FORMATS = ['text/plain', 'application/json', 'application/xml',
diff --git a/swift/common/middleware/dlo.py b/swift/common/middleware/dlo.py
index b02aa7b2b9..ebdd639504 100644
--- a/swift/common/middleware/dlo.py
+++ b/swift/common/middleware/dlo.py
@@ -114,6 +114,7 @@ Here's an example using ``curl`` with tiny 1-byte segments::
         http://<storage_url>/container/myobject
 """
 
+import json
 import os
 
 import six
@@ -126,7 +127,7 @@ from swift.common.exceptions import ListingIterError, SegmentError
 from swift.common.http import is_success
 from swift.common.swob import Request, Response, \
     HTTPRequestedRangeNotSatisfiable, HTTPBadRequest, HTTPConflict
-from swift.common.utils import get_logger, json, \
+from swift.common.utils import get_logger, \
     RateLimitedIterator, read_conf_dir, quote, close_if_possible, \
     closing_if_possible
 from swift.common.request_helpers import SegmentedIterable
diff --git a/swift/common/middleware/list_endpoints.py b/swift/common/middleware/list_endpoints.py
index fb41bb6dd3..2e55d45fac 100644
--- a/swift/common/middleware/list_endpoints.py
+++ b/swift/common/middleware/list_endpoints.py
@@ -78,11 +78,12 @@ with this middleware enabled should not be open to an untrusted
 environment (everyone can query the locality data using this middleware).
 """
 
+import json
 
 from six.moves.urllib.parse import quote, unquote
 
 from swift.common.ring import Ring
-from swift.common.utils import json, get_logger, split_path
+from swift.common.utils import get_logger, split_path
 from swift.common.swob import Request, Response
 from swift.common.swob import HTTPBadRequest, HTTPMethodNotAllowed
 from swift.common.storage_policy import POLICIES
diff --git a/swift/common/middleware/recon.py b/swift/common/middleware/recon.py
index 3014962f21..b73823888a 100644
--- a/swift/common/middleware/recon.py
+++ b/swift/common/middleware/recon.py
@@ -14,6 +14,7 @@
 # limitations under the License.
 
 import errno
+import json
 import os
 import time
 from swift import gettext_ as _
@@ -21,7 +22,7 @@ from swift import gettext_ as _
 from swift import __version__ as swiftver
 from swift.common.storage_policy import POLICIES
 from swift.common.swob import Request, Response
-from swift.common.utils import get_logger, config_true_value, json, \
+from swift.common.utils import get_logger, config_true_value, \
     SWIFT_CONF_FILE
 from swift.common.constraints import check_mount
 from resource import getpagesize
diff --git a/swift/common/middleware/slo.py b/swift/common/middleware/slo.py
index f46f6b7d54..899632a1f0 100644
--- a/swift/common/middleware/slo.py
+++ b/swift/common/middleware/slo.py
@@ -197,6 +197,7 @@ metadata which can be used for stats purposes.
 from six.moves import range
 
 from datetime import datetime
+import json
 import mimetypes
 import re
 import six
@@ -208,7 +209,7 @@ from swift.common.swob import Request, HTTPBadRequest, HTTPServerError, \
     HTTPOk, HTTPPreconditionFailed, HTTPException, HTTPNotFound, \
     HTTPUnauthorized, HTTPConflict, HTTPRequestedRangeNotSatisfiable,\
     Response, Range
-from swift.common.utils import json, get_logger, config_true_value, \
+from swift.common.utils import get_logger, config_true_value, \
     get_valid_utf8_str, override_bytes_from_content_type, split_path, \
     register_swift_info, RateLimitedIterator, quote, close_if_possible, \
     closing_if_possible
diff --git a/swift/common/middleware/versioned_writes.py b/swift/common/middleware/versioned_writes.py
index 4c2f8a7d31..5a775d65bd 100644
--- a/swift/common/middleware/versioned_writes.py
+++ b/swift/common/middleware/versioned_writes.py
@@ -113,10 +113,11 @@ Disable versioning from a container (x is any value except empty)::
 -H "X-Remove-Versions-Location: x" http://<storage_url>/container
 """
 
+import json
 import six
 from six.moves.urllib.parse import quote, unquote
 import time
-from swift.common.utils import get_logger, Timestamp, json, \
+from swift.common.utils import get_logger, Timestamp, \
     register_swift_info, config_true_value
 from swift.common.request_helpers import get_sys_meta_prefix
 from swift.common.wsgi import WSGIContext, make_pre_authed_request
diff --git a/swift/common/ring/ring.py b/swift/common/ring/ring.py
index c62015fa3d..e00b0db3a9 100644
--- a/swift/common/ring/ring.py
+++ b/swift/common/ring/ring.py
@@ -16,6 +16,7 @@
 import array
 import six.moves.cPickle as pickle
 import inspect
+import json
 from collections import defaultdict
 from gzip import GzipFile
 from os.path import getmtime
@@ -29,7 +30,7 @@ from tempfile import NamedTemporaryFile
 
 from six.moves import range
 
-from swift.common.utils import hash_path, validate_configuration, json
+from swift.common.utils import hash_path, validate_configuration
 from swift.common.ring.utils import tiers_for_dev
 
 
diff --git a/swift/common/utils.py b/swift/common/utils.py
index 85ac3df987..74a2134624 100644
--- a/swift/common/utils.py
+++ b/swift/common/utils.py
@@ -21,6 +21,7 @@ import errno
 import fcntl
 import grp
 import hmac
+import json
 import operator
 import os
 import pwd
@@ -39,10 +40,6 @@ import ctypes.util
 from optparse import OptionParser
 
 from tempfile import mkstemp, NamedTemporaryFile
-try:
-    import simplejson as json
-except ImportError:
-    import json
 import glob
 import itertools
 import stat
diff --git a/swift/container/replicator.py b/swift/container/replicator.py
index b9f9a3b2b0..810c7db600 100644
--- a/swift/container/replicator.py
+++ b/swift/container/replicator.py
@@ -15,6 +15,7 @@
 
 import os
 import itertools
+import json
 import time
 from collections import defaultdict
 from eventlet import Timeout
@@ -28,7 +29,7 @@ from swift.common.storage_policy import POLICIES
 from swift.common.exceptions import DeviceUnavailable
 from swift.common.http import is_success
 from swift.common.db import DatabaseAlreadyExists
-from swift.common.utils import (json, Timestamp, hash_path,
+from swift.common.utils import (Timestamp, hash_path,
                                 storage_directory, quorum_size)
 
 
diff --git a/swift/container/server.py b/swift/container/server.py
index 821ab9b188..4f00bbca8f 100644
--- a/swift/container/server.py
+++ b/swift/container/server.py
@@ -13,6 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+import json
 import os
 import time
 import traceback
@@ -30,7 +31,7 @@ from swift.common.request_helpers import get_param, get_listing_content_type, \
     split_and_validate_path, is_sys_or_user_meta
 from swift.common.utils import get_logger, hash_path, public, \
     Timestamp, storage_directory, validate_sync_to, \
-    config_true_value, json, timing_stats, replication, \
+    config_true_value, timing_stats, replication, \
     override_bytes_from_content_type, get_log_line
 from swift.common.constraints import check_mount, valid_timestamp, check_utf8
 from swift.common import constraints
diff --git a/swift/obj/auditor.py b/swift/obj/auditor.py
index 4875bb2520..38fef209e1 100644
--- a/swift/obj/auditor.py
+++ b/swift/obj/auditor.py
@@ -13,6 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+import json
 import os
 import sys
 import time
@@ -24,7 +25,7 @@ from eventlet import Timeout
 
 from swift.obj import diskfile
 from swift.common.utils import get_logger, ratelimit_sleep, dump_recon_cache, \
-    list_from_csv, json, listdir
+    list_from_csv, listdir
 from swift.common.exceptions import DiskFileQuarantined, DiskFileNotExist
 from swift.common.daemon import Daemon
 
diff --git a/swift/proxy/controllers/info.py b/swift/proxy/controllers/info.py
index 5580da0183..57f3c1b90f 100644
--- a/swift/proxy/controllers/info.py
+++ b/swift/proxy/controllers/info.py
@@ -13,9 +13,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+import json
 from time import time
 
-from swift.common.utils import public, get_hmac, get_swift_info, json, \
+from swift.common.utils import public, get_hmac, get_swift_info, \
     streq_const_time
 from swift.proxy.controllers.base import Controller, delay_denial
 from swift.common.swob import HTTPOk, HTTPForbidden, HTTPUnauthorized
diff --git a/swift/proxy/controllers/obj.py b/swift/proxy/controllers/obj.py
index 87d3b5241c..b58ba4ba3c 100644
--- a/swift/proxy/controllers/obj.py
+++ b/swift/proxy/controllers/obj.py
@@ -29,6 +29,7 @@ from six.moves.urllib.parse import unquote, quote
 
 import collections
 import itertools
+import json
 import mimetypes
 import time
 import math
@@ -43,7 +44,7 @@ from eventlet.timeout import Timeout
 
 from swift.common.utils import (
     clean_content_type, config_true_value, ContextPool, csv_append,
-    GreenAsyncPile, GreenthreadSafeIterator, json, Timestamp,
+    GreenAsyncPile, GreenthreadSafeIterator, Timestamp,
     normalize_delete_at_timestamp, public, get_expirer_container,
     document_iters_to_http_response_body, parse_content_range,
     quorum_size, reiterate, close_if_possible)
diff --git a/test/functional/swift_test_client.py b/test/functional/swift_test_client.py
index 68dcbea017..63090e5b96 100644
--- a/test/functional/swift_test_client.py
+++ b/test/functional/swift_test_client.py
@@ -14,12 +14,12 @@
 # limitations under the License.
 
 import hashlib
+import json
 import os
 import random
 import socket
 import time
 
-import simplejson as json
 from nose import SkipTest
 from xml.dom import minidom
 
diff --git a/test/unit/account/test_server.py b/test/unit/account/test_server.py
index e835b37599..db4f09cc1f 100644
--- a/test/unit/account/test_server.py
+++ b/test/unit/account/test_server.py
@@ -24,7 +24,7 @@ from test.unit import FakeLogger
 import itertools
 import random
 
-import simplejson
+import json
 from six import BytesIO
 from six import StringIO
 import xml.dom.minidom
@@ -806,7 +806,7 @@ class TestAccountController(unittest.TestCase):
                             environ={'REQUEST_METHOD': 'GET'})
         resp = req.get_response(self.controller)
         self.assertEqual(resp.status_int, 200)
-        self.assertEqual(simplejson.loads(resp.body),
+        self.assertEqual(json.loads(resp.body),
                          [{'count': 0, 'bytes': 0, 'name': 'c1'},
                           {'count': 0, 'bytes': 0, 'name': 'c2'}])
         req = Request.blank('/sda1/p/a/c1', environ={'REQUEST_METHOD': 'PUT'},
@@ -827,7 +827,7 @@ class TestAccountController(unittest.TestCase):
                             environ={'REQUEST_METHOD': 'GET'})
         resp = req.get_response(self.controller)
         self.assertEqual(resp.status_int, 200)
-        self.assertEqual(simplejson.loads(resp.body),
+        self.assertEqual(json.loads(resp.body),
                          [{'count': 1, 'bytes': 2, 'name': 'c1'},
                           {'count': 3, 'bytes': 4, 'name': 'c2'}])
         self.assertEqual(resp.content_type, 'application/json')
@@ -1031,7 +1031,7 @@ class TestAccountController(unittest.TestCase):
                             environ={'REQUEST_METHOD': 'GET'})
         resp = req.get_response(self.controller)
         self.assertEqual(resp.status_int, 200)
-        self.assertEqual(simplejson.loads(resp.body),
+        self.assertEqual(json.loads(resp.body),
                          [{'count': 2, 'bytes': 3, 'name': 'c0'},
                           {'count': 2, 'bytes': 3, 'name': 'c1'},
                           {'count': 2, 'bytes': 3, 'name': 'c2'}])
@@ -1039,7 +1039,7 @@ class TestAccountController(unittest.TestCase):
                             environ={'REQUEST_METHOD': 'GET'})
         resp = req.get_response(self.controller)
         self.assertEqual(resp.status_int, 200)
-        self.assertEqual(simplejson.loads(resp.body),
+        self.assertEqual(json.loads(resp.body),
                          [{'count': 2, 'bytes': 3, 'name': 'c3'},
                           {'count': 2, 'bytes': 3, 'name': 'c4'}])
 
@@ -1152,7 +1152,7 @@ class TestAccountController(unittest.TestCase):
         req.accept = 'application/*'
         resp = req.get_response(self.controller)
         self.assertEqual(resp.status_int, 200)
-        self.assertEqual(len(simplejson.loads(resp.body)), 1)
+        self.assertEqual(len(json.loads(resp.body)), 1)
 
     def test_GET_accept_json(self):
         req = Request.blank('/sda1/p/a', environ={'REQUEST_METHOD': 'PUT',
@@ -1169,7 +1169,7 @@ class TestAccountController(unittest.TestCase):
         req.accept = 'application/json'
         resp = req.get_response(self.controller)
         self.assertEqual(resp.status_int, 200)
-        self.assertEqual(len(simplejson.loads(resp.body)), 1)
+        self.assertEqual(len(json.loads(resp.body)), 1)
 
     def test_GET_accept_xml(self):
         req = Request.blank('/sda1/p/a', environ={'REQUEST_METHOD': 'PUT',
@@ -1305,14 +1305,14 @@ class TestAccountController(unittest.TestCase):
         resp = req.get_response(self.controller)
         self.assertEqual(resp.status_int, 200)
         self.assertEqual([n.get('name', 's:' + n.get('subdir', 'error'))
-                          for n in simplejson.loads(resp.body)], ['s:sub.'])
+                          for n in json.loads(resp.body)], ['s:sub.'])
         req = Request.blank('/sda1/p/a?prefix=sub.&delimiter=.&format=json',
                             environ={'REQUEST_METHOD': 'GET'})
         resp = req.get_response(self.controller)
         self.assertEqual(resp.status_int, 200)
         self.assertEqual(
             [n.get('name', 's:' + n.get('subdir', 'error'))
-             for n in simplejson.loads(resp.body)],
+             for n in json.loads(resp.body)],
             ['sub.0', 's:sub.0.', 'sub.1', 's:sub.1.', 'sub.2', 's:sub.2.'])
         req = Request.blank('/sda1/p/a?prefix=sub.1.&delimiter=.&format=json',
                             environ={'REQUEST_METHOD': 'GET'})
@@ -1320,7 +1320,7 @@ class TestAccountController(unittest.TestCase):
         self.assertEqual(resp.status_int, 200)
         self.assertEqual(
             [n.get('name', 's:' + n.get('subdir', 'error'))
-             for n in simplejson.loads(resp.body)],
+             for n in json.loads(resp.body)],
             ['sub.1.0', 'sub.1.1', 'sub.1.2'])
 
     def test_GET_prefix_delimiter_xml(self):
diff --git a/test/unit/common/middleware/test_slo.py b/test/unit/common/middleware/test_slo.py
index a5918918d3..839f4f7d2a 100644
--- a/test/unit/common/middleware/test_slo.py
+++ b/test/unit/common/middleware/test_slo.py
@@ -17,6 +17,7 @@
 from six.moves import range
 
 import hashlib
+import json
 import time
 import unittest
 from mock import patch
@@ -25,17 +26,17 @@ from swift.common import swob, utils
 from swift.common.exceptions import ListingIterError, SegmentError
 from swift.common.middleware import slo
 from swift.common.swob import Request, Response, HTTPException
-from swift.common.utils import quote, json, closing_if_possible
+from swift.common.utils import quote, closing_if_possible
 from test.unit.common.middleware.helpers import FakeSwift
 
 
 test_xml_data = '''<?xml version="1.0" encoding="UTF-8"?>
 <static_large_object>
-<object_segment>
-<path>/cont/object</path>
-<etag>etagoftheobjectsegment</etag>
-<size_bytes>100</size_bytes>
-</object_segment>
+  <object_segment>
+    <path>/cont/object</path>
+    <etag>etagoftheobjectsegment</etag>
+    <size_bytes>100</size_bytes>
+  </object_segment>
 </static_large_object>
 '''
 test_json_data = json.dumps([{'path': '/cont/object',
diff --git a/test/unit/common/test_bufferedhttp.py b/test/unit/common/test_bufferedhttp.py
index aefb54a1cb..7029511d83 100644
--- a/test/unit/common/test_bufferedhttp.py
+++ b/test/unit/common/test_bufferedhttp.py
@@ -111,11 +111,6 @@ class TestBufferedHTTP(unittest.TestCase):
             bufferedhttp.HTTPSConnection = origHTTPSConnection
 
     def test_unicode_values(self):
-        # simplejson may decode the ring devices as str or unicode
-        # depending on whether speedups is installed and/or the values are
-        # non-ascii. Verify all types are tolerated in combination with
-        # whatever type path might be and possible encoded non-ascii in
-        # a header value.
         with mock.patch('swift.common.bufferedhttp.HTTPSConnection',
                         MockHTTPSConnection):
             for dev in ('sda', u'sda', u'sdá', u'sdá'.encode('utf-8')):
diff --git a/test/unit/common/test_db.py b/test/unit/common/test_db.py
index c844419ae4..925e71438a 100644
--- a/test/unit/common/test_db.py
+++ b/test/unit/common/test_db.py
@@ -23,7 +23,7 @@ from shutil import rmtree, copy
 from uuid import uuid4
 import six.moves.cPickle as pickle
 
-import simplejson
+import json
 import sqlite3
 import itertools
 import time
@@ -39,7 +39,7 @@ from swift.common.constraints import \
 from swift.common.db import chexor, dict_factory, get_db_connection, \
     DatabaseBroker, DatabaseConnectionError, DatabaseAlreadyExists, \
     GreenDBConnection, PICKLE_PROTOCOL
-from swift.common.utils import normalize_timestamp, mkdirs, json, Timestamp
+from swift.common.utils import normalize_timestamp, mkdirs, Timestamp
 from swift.common.exceptions import LockTimeout
 from swift.common.swob import HTTPException
 
@@ -963,7 +963,7 @@ class TestDatabaseBroker(unittest.TestCase):
         broker.db_contains_type = 'test'
         broker_creation = normalize_timestamp(1)
         broker_uuid = str(uuid4())
-        broker_metadata = metadata and simplejson.dumps(
+        broker_metadata = metadata and json.dumps(
             {'Test': ('Value', normalize_timestamp(1))}) or ''
 
         def _initialize(conn, put_timestamp, **kwargs):
diff --git a/test/unit/common/test_db_replicator.py b/test/unit/common/test_db_replicator.py
index 5ea1f3d631..422c0c56b8 100644
--- a/test/unit/common/test_db_replicator.py
+++ b/test/unit/common/test_db_replicator.py
@@ -25,7 +25,7 @@ from mock import patch, call
 from shutil import rmtree, copy
 from tempfile import mkdtemp, NamedTemporaryFile
 import mock
-import simplejson
+import json
 
 from swift.container.backend import DATADIR
 from swift.common import db_replicator
@@ -1207,7 +1207,7 @@ class TestReplToNode(unittest.TestCase):
 
     def test_repl_to_node_usync_success(self):
         rinfo = {"id": 3, "point": -1, "max_row": 10, "hash": "c"}
-        self.http = ReplHttp(simplejson.dumps(rinfo))
+        self.http = ReplHttp(json.dumps(rinfo))
         local_sync = self.broker.get_sync()
         self.assertEqual(self.replicator._repl_to_node(
             self.fake_node, self.broker, '0', self.fake_info), True)
@@ -1218,7 +1218,7 @@ class TestReplToNode(unittest.TestCase):
 
     def test_repl_to_node_rsync_success(self):
         rinfo = {"id": 3, "point": -1, "max_row": 9, "hash": "c"}
-        self.http = ReplHttp(simplejson.dumps(rinfo))
+        self.http = ReplHttp(json.dumps(rinfo))
         self.broker.get_sync()
         self.assertEqual(self.replicator._repl_to_node(
             self.fake_node, self.broker, '0', self.fake_info), True)
@@ -1235,7 +1235,7 @@ class TestReplToNode(unittest.TestCase):
 
     def test_repl_to_node_already_in_sync(self):
         rinfo = {"id": 3, "point": -1, "max_row": 20, "hash": "b"}
-        self.http = ReplHttp(simplejson.dumps(rinfo))
+        self.http = ReplHttp(json.dumps(rinfo))
         self.broker.get_sync()
         self.assertEqual(self.replicator._repl_to_node(
             self.fake_node, self.broker, '0', self.fake_info), True)
@@ -1282,7 +1282,7 @@ class TestReplToNode(unittest.TestCase):
             rinfo['max_row'] = r
             self.fake_info['max_row'] = l
             self.replicator._usync_db = mock.Mock(return_value=True)
-            self.http = ReplHttp(simplejson.dumps(rinfo))
+            self.http = ReplHttp(json.dumps(rinfo))
             local_sync = self.broker.get_sync()
             self.assertEqual(self.replicator._repl_to_node(
                 self.fake_node, self.broker, '0', self.fake_info), True)
diff --git a/test/unit/container/test_server.py b/test/unit/container/test_server.py
index b7d2c03130..fb414207d5 100644
--- a/test/unit/container/test_server.py
+++ b/test/unit/container/test_server.py
@@ -28,7 +28,7 @@ import time
 import random
 
 from eventlet import spawn, Timeout, listen
-import simplejson
+import json
 import six
 from six import BytesIO
 from six import StringIO
@@ -40,8 +40,7 @@ import swift.container
 from swift.container import server as container_server
 from swift.common import constraints
 from swift.common.utils import (Timestamp, mkdirs, public, replication,
-                                storage_directory, lock_parent_directory,
-                                json)
+                                storage_directory, lock_parent_directory)
 from test.unit import fake_http_connect, debug_logger
 from swift.common.storage_policy import (POLICIES, StoragePolicy)
 from swift.common.request_helpers import get_sys_meta_prefix
@@ -1691,7 +1690,7 @@ class TestContainerController(unittest.TestCase):
             environ={'REQUEST_METHOD': 'GET'})
         resp = req.get_response(self.controller)
         self.assertEqual(resp.status_int, 200)
-        self.assertEqual(simplejson.loads(resp.body), [])
+        self.assertEqual(json.loads(resp.body), [])
         # fill the container
         for i in range(3):
             req = Request.blank(
@@ -1726,7 +1725,7 @@ class TestContainerController(unittest.TestCase):
             environ={'REQUEST_METHOD': 'GET'})
         resp = req.get_response(self.controller)
         self.assertEqual(resp.content_type, 'application/json')
-        self.assertEqual(simplejson.loads(resp.body), json_body)
+        self.assertEqual(json.loads(resp.body), json_body)
         self.assertEqual(resp.charset, 'utf-8')
 
         req = Request.blank(
@@ -1743,7 +1742,7 @@ class TestContainerController(unittest.TestCase):
             req.accept = accept
             resp = req.get_response(self.controller)
             self.assertEqual(
-                simplejson.loads(resp.body), json_body,
+                json.loads(resp.body), json_body,
                 'Invalid body for Accept: %s' % accept)
             self.assertEqual(
                 resp.content_type, 'application/json',
@@ -1873,7 +1872,7 @@ class TestContainerController(unittest.TestCase):
             environ={'REQUEST_METHOD': 'GET'})
         resp = req.get_response(self.controller)
         self.assertEqual(resp.content_type, 'application/json')
-        self.assertEqual(simplejson.loads(resp.body), json_body)
+        self.assertEqual(json.loads(resp.body), json_body)
         self.assertEqual(resp.charset, 'utf-8')
 
     def test_GET_xml(self):
@@ -2001,7 +2000,7 @@ class TestContainerController(unittest.TestCase):
         req = Request.blank('/sda1/p/a/c?format=json',
                             environ={'REQUEST_METHOD': 'GET'})
         resp = req.get_response(self.controller)
-        result = [x['content_type'] for x in simplejson.loads(resp.body)]
+        result = [x['content_type'] for x in json.loads(resp.body)]
         self.assertEqual(result, [u'\u2603', 'text/plain;charset="utf-8"'])
 
     def test_GET_accept_not_valid(self):
@@ -2089,7 +2088,7 @@ class TestContainerController(unittest.TestCase):
             environ={'REQUEST_METHOD': 'GET'})
         resp = req.get_response(self.controller)
         self.assertEqual(
-            simplejson.loads(resp.body),
+            json.loads(resp.body),
             [{"subdir": "US-OK-"},
              {"subdir": "US-TX-"},
              {"subdir": "US-UT-"}])
@@ -2170,7 +2169,7 @@ class TestContainerController(unittest.TestCase):
             environ={'REQUEST_METHOD': 'GET'})
         resp = req.get_response(self.controller)
         self.assertEqual(
-            simplejson.loads(resp.body),
+            json.loads(resp.body),
             [{"name": "US/OK", "hash": "x", "bytes": 0,
               "content_type": "text/plain",
               "last_modified": "1970-01-01T00:00:01.000000"},
diff --git a/test/unit/proxy/controllers/test_base.py b/test/unit/proxy/controllers/test_base.py
index 204a9b88f0..f865954fe8 100644
--- a/test/unit/proxy/controllers/test_base.py
+++ b/test/unit/proxy/controllers/test_base.py
@@ -342,7 +342,6 @@ class TestFuncs(unittest.TestCase):
     def test_get_container_info_cache(self):
         cache_stub = {
             'status': 404, 'bytes': 3333, 'object_count': 10,
-            # simplejson sometimes hands back strings, sometimes unicodes
             'versions': u"\u1F4A9"}
         req = Request.blank("/v1/account/cont",
                             environ={'swift.cache': FakeCache(cache_stub)})
diff --git a/test/unit/proxy/test_server.py b/test/unit/proxy/test_server.py
index c51360d18c..c3e8fc6b20 100644
--- a/test/unit/proxy/test_server.py
+++ b/test/unit/proxy/test_server.py
@@ -17,6 +17,7 @@
 from __future__ import print_function
 import email.parser
 import logging
+import json
 import math
 import os
 import pickle
@@ -47,7 +48,7 @@ from six import StringIO
 from six.moves import range
 from six.moves.urllib.parse import quote
 
-from swift.common.utils import hash_path, json, storage_directory, \
+from swift.common.utils import hash_path, storage_directory, \
     parse_content_type, parse_mime_headers, \
     iter_multipart_mime_documents, public