diff --git a/doc/source/contributor/contributing.rst b/doc/source/contributor/contributing.rst
index 38673a0..9c79a1f 100644
--- a/doc/source/contributor/contributing.rst
+++ b/doc/source/contributor/contributing.rst
@@ -13,13 +13,13 @@
 
 Communication
 ~~~~~~~~~~~~~
-* IRC channel #openstack-qa at FreeNode
+* IRC channel ``#openstack-qa`` at FreeNode
 * Mailing list (prefix subjects with ``[qa]`` for faster responses)
   http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-discuss
 
 Contacting the Core Team
 ~~~~~~~~~~~~~~~~~~~~~~~~
-Please refer the `Tempest Core Team
+Please refer to the `Tempest Core Team
 <https://review.opendev.org/#/admin/groups/42,members>`_ contacts.
 
 New Feature Planning
@@ -43,8 +43,8 @@
 
 Getting Your Patch Merged
 ~~~~~~~~~~~~~~~~~~~~~~~~~
-All changes proposed to the Tempest requires two ``Code-Review +2`` votes from
-Tempest core reviewers before one of the core reviewers can approve patch by
+All changes proposed to the Tempest require two ``Code-Review +2`` votes from
+Tempest core reviewers before one of the core reviewers can approve the patch by
 giving ``Workflow +1`` vote. More detailed guidelines for reviewers are available
 at :doc:`../REVIEWING`.
 
@@ -53,7 +53,7 @@
 All common PTL duties are enumerated in the `PTL guide
 <https://docs.openstack.org/project-team-guide/ptl.html>`_.
 
-Release Process fir QA is documented in `QA Release Process
-<https://wiki.openstack.org/wiki/QA#Releases_Process>`_.
+The Release Process for QA is documented in `QA Release Process
+<https://wiki.openstack.org/wiki/QA/releases>`_.
 
 .. _Feature Proposal Process: https://wiki.openstack.org/wiki/QA#Feature_Proposal_.26_Design_discussions
diff --git a/tempest/api/compute/servers/test_server_rescue.py b/tempest/api/compute/servers/test_server_rescue.py
index 1ac9516..2c1ad80 100644
--- a/tempest/api/compute/servers/test_server_rescue.py
+++ b/tempest/api/compute/servers/test_server_rescue.py
@@ -25,6 +25,7 @@
 
 
 class ServerRescueTestBase(base.BaseV2ComputeTest):
+    create_default_network = True
 
     @classmethod
     def skip_checks(cls):
@@ -106,6 +107,7 @@
 
 
 class ServerStableDeviceRescueTest(base.BaseV2ComputeTest):
+    create_default_network = True
 
     @classmethod
     def skip_checks(self):
diff --git a/tox.ini b/tox.ini
index e324c91..e861c84 100644
--- a/tox.ini
+++ b/tox.ini
@@ -11,7 +11,7 @@
     VIRTUAL_ENV={envdir}
     OS_TEST_PATH=./tempest/test_discover
 deps =
-    -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/ussuri}
+    -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
     -r{toxinidir}/requirements.txt
 
 [testenv]
@@ -28,7 +28,7 @@
 install_command = pip install {opts} {packages}
 whitelist_externals = *
 deps =
-    -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/ussuri}
+    -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
     -r{toxinidir}/requirements.txt
     -r{toxinidir}/test-requirements.txt
 commands =
@@ -263,7 +263,7 @@
 
 [testenv:venv]
 deps =
-  -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/ussuri}
+  -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
   -r{toxinidir}/requirements.txt
   -r{toxinidir}/doc/requirements.txt
 commands = {posargs}
@@ -278,7 +278,7 @@
 
 [testenv:docs]
 deps =
-  -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/ussuri}
+  -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
   -r{toxinidir}/requirements.txt
   -r{toxinidir}/doc/requirements.txt
 commands =
@@ -348,7 +348,7 @@
 
 [testenv:releasenotes]
 deps =
-  -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/ussuri}
+  -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
   -r{toxinidir}/requirements.txt
   -r{toxinidir}/doc/requirements.txt
 commands =