diff --git a/neutron/tests/tempest/common/glance_http.py b/neutron/tests/tempest/common/glance_http.py
index 0a6f985..3d8c8aa 100644
--- a/neutron/tests/tempest/common/glance_http.py
+++ b/neutron/tests/tempest/common/glance_http.py
@@ -17,7 +17,6 @@
 
 import copy
 import hashlib
-import json
 import posixpath
 import re
 import socket
@@ -28,6 +27,7 @@
 
 import OpenSSL
 from oslo_log import log as logging
+from oslo_serialization import jsonutils as json
 from six import moves
 from six.moves import http_client as httplib
 from tempest_lib import exceptions as lib_exc
diff --git a/neutron/tests/tempest/services/identity/v2/json/identity_client.py b/neutron/tests/tempest/services/identity/v2/json/identity_client.py
index 7efda1f..46e8f87 100644
--- a/neutron/tests/tempest/services/identity/v2/json/identity_client.py
+++ b/neutron/tests/tempest/services/identity/v2/json/identity_client.py
@@ -10,7 +10,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import json
+from oslo_serialization import jsonutils as json
 from tempest_lib import exceptions as lib_exc
 
 from neutron.tests.tempest.common import service_client
diff --git a/neutron/tests/tempest/services/identity/v2/json/token_client.py b/neutron/tests/tempest/services/identity/v2/json/token_client.py
index 51d9db0..e8b33ea 100644
--- a/neutron/tests/tempest/services/identity/v2/json/token_client.py
+++ b/neutron/tests/tempest/services/identity/v2/json/token_client.py
@@ -12,7 +12,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import json
+from oslo_serialization import jsonutils as json
 from tempest_lib.common import rest_client
 from tempest_lib import exceptions as lib_exc
 
diff --git a/neutron/tests/tempest/services/identity/v3/json/credentials_client.py b/neutron/tests/tempest/services/identity/v3/json/credentials_client.py
index 4300c0f..07e230a 100644
--- a/neutron/tests/tempest/services/identity/v3/json/credentials_client.py
+++ b/neutron/tests/tempest/services/identity/v3/json/credentials_client.py
@@ -13,7 +13,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import json
+from oslo_serialization import jsonutils as json
 
 from neutron.tests.tempest.common import service_client
 
diff --git a/neutron/tests/tempest/services/identity/v3/json/endpoints_client.py b/neutron/tests/tempest/services/identity/v3/json/endpoints_client.py
index b60dd26..27ac3e5 100644
--- a/neutron/tests/tempest/services/identity/v3/json/endpoints_client.py
+++ b/neutron/tests/tempest/services/identity/v3/json/endpoints_client.py
@@ -13,7 +13,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import json
+from oslo_serialization import jsonutils as json
 
 from neutron.tests.tempest.common import service_client
 
diff --git a/neutron/tests/tempest/services/identity/v3/json/identity_client.py b/neutron/tests/tempest/services/identity/v3/json/identity_client.py
index a7db46a..a090acf 100644
--- a/neutron/tests/tempest/services/identity/v3/json/identity_client.py
+++ b/neutron/tests/tempest/services/identity/v3/json/identity_client.py
@@ -13,8 +13,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import json
-
+from oslo_serialization import jsonutils as json
 from six.moves.urllib import parse
 
 from neutron.tests.tempest.common import service_client
diff --git a/neutron/tests/tempest/services/identity/v3/json/policy_client.py b/neutron/tests/tempest/services/identity/v3/json/policy_client.py
index 2e44185..2d247af 100644
--- a/neutron/tests/tempest/services/identity/v3/json/policy_client.py
+++ b/neutron/tests/tempest/services/identity/v3/json/policy_client.py
@@ -13,7 +13,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import json
+from oslo_serialization import jsonutils as json
 
 from neutron.tests.tempest.common import service_client
 
diff --git a/neutron/tests/tempest/services/identity/v3/json/region_client.py b/neutron/tests/tempest/services/identity/v3/json/region_client.py
index d2fa53b..0effae8 100644
--- a/neutron/tests/tempest/services/identity/v3/json/region_client.py
+++ b/neutron/tests/tempest/services/identity/v3/json/region_client.py
@@ -13,8 +13,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import json
-
+from oslo_serialization import jsonutils as json
 from six.moves.urllib import parse
 
 from neutron.tests.tempest.common import service_client
diff --git a/neutron/tests/tempest/services/identity/v3/json/service_client.py b/neutron/tests/tempest/services/identity/v3/json/service_client.py
index 529693e..75a5cf8 100644
--- a/neutron/tests/tempest/services/identity/v3/json/service_client.py
+++ b/neutron/tests/tempest/services/identity/v3/json/service_client.py
@@ -13,7 +13,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import json
+from oslo_serialization import jsonutils as json
 
 from neutron.tests.tempest.common import service_client
 
diff --git a/neutron/tests/tempest/services/identity/v3/json/token_client.py b/neutron/tests/tempest/services/identity/v3/json/token_client.py
index c60b24c..77ecf84 100644
--- a/neutron/tests/tempest/services/identity/v3/json/token_client.py
+++ b/neutron/tests/tempest/services/identity/v3/json/token_client.py
@@ -12,7 +12,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import json
+from oslo_serialization import jsonutils as json
 from tempest_lib.common import rest_client
 from tempest_lib import exceptions as lib_exc
 
diff --git a/neutron/tests/tempest/services/network/json/network_client.py b/neutron/tests/tempest/services/network/json/network_client.py
index 4958bc5..4badd96 100644
--- a/neutron/tests/tempest/services/network/json/network_client.py
+++ b/neutron/tests/tempest/services/network/json/network_client.py
@@ -10,9 +10,9 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import json
 import time
 
+from oslo_serialization import jsonutils as json
 from six.moves.urllib import parse
 from tempest_lib.common.utils import misc
 from tempest_lib import exceptions as lib_exc
diff --git a/neutron/tests/tempest/test.py b/neutron/tests/tempest/test.py
index d95174b..3abf826 100644
--- a/neutron/tests/tempest/test.py
+++ b/neutron/tests/tempest/test.py
@@ -15,7 +15,6 @@
 
 import atexit
 import functools
-import json
 import os
 import re
 import sys
@@ -24,6 +23,7 @@
 
 import fixtures
 from oslo_log import log as logging
+from oslo_serialization import jsonutils as json
 from oslo_utils import importutils
 import six
 from six.moves.urllib import parse