diff --git a/tempest/api/compute/admin/test_networks.py b/tempest/api/compute/admin/test_networks.py
index acb0d90..87ce39d 100644
--- a/tempest/api/compute/admin/test_networks.py
+++ b/tempest/api/compute/admin/test_networks.py
@@ -24,7 +24,7 @@
     """Tests Nova Networks API that usually requires admin privileges.
 
     API docs:
-    http://developer.openstack.org/api-ref-compute-v2-ext.html#ext-os-networks
+    https://developer.openstack.org/api-ref/compute/#networks-os-networks-deprecated
     """
 
     @classmethod
diff --git a/tempest/api/compute/base.py b/tempest/api/compute/base.py
index 83fabdb..9759be7 100644
--- a/tempest/api/compute/base.py
+++ b/tempest/api/compute/base.py
@@ -185,11 +185,12 @@
             cls.request_microversion)
         v2_37_version = api_version_request.APIVersionRequest('2.37')
 
+        tenant_network = cls.get_tenant_network()
         # NOTE(snikitin): since microversion v2.37 'networks' field is required
-        if request_version >= v2_37_version and 'networks' not in kwargs:
+        if (request_version >= v2_37_version and 'networks' not in kwargs and
+            not tenant_network):
             kwargs['networks'] = 'none'
 
-        tenant_network = cls.get_tenant_network()
         body, servers = compute.create_test_server(
             cls.os_primary,
             validatable,
diff --git a/tempest/lib/services/compute/quota_classes_client.py b/tempest/lib/services/compute/quota_classes_client.py
index 0fe9868..64e06f4 100644
--- a/tempest/lib/services/compute/quota_classes_client.py
+++ b/tempest/lib/services/compute/quota_classes_client.py
@@ -35,8 +35,9 @@
     def update_quota_class_set(self, quota_class_id, **kwargs):
         """Update the quota class's limits for one or more resources.
 
-        # NOTE: Current api-site doesn't contain this API description.
-        # LP: https://bugs.launchpad.net/nova/+bug/1602400
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://developer.openstack.org/api-ref/compute/#create-or-update-quotas-for-quota-class
         """
         post_body = json.dumps({'quota_class_set': kwargs})
 
diff --git a/tempest/lib/services/compute/quotas_client.py b/tempest/lib/services/compute/quotas_client.py
index daf4bc0..12df895 100644
--- a/tempest/lib/services/compute/quotas_client.py
+++ b/tempest/lib/services/compute/quotas_client.py
@@ -28,8 +28,8 @@
 
         For a full list of available parameters, please refer to the official
         API reference:
-        http://developer.openstack.org/api-ref-compute-v2.1.html/#show-a-quota
-        http://developer.openstack.org/api-ref-compute-v2.1.html/#show-the-detail-of-quota
+        https://developer.openstack.org/api-ref/compute/#show-a-quota
+        https://developer.openstack.org/api-ref/compute/#show-the-detail-of-quota
         """
 
         params = {}
@@ -49,7 +49,10 @@
         return rest_client.ResponseBody(resp, body)
 
     def show_default_quota_set(self, tenant_id):
-        """List the default quota set for a tenant."""
+        """List the default quota set for a tenant.
+
+        https://developer.openstack.org/api-ref/compute/#list-default-quotas-for-tenant
+        """
 
         url = 'os-quota-sets/%s/defaults' % tenant_id
         resp, body = self.get(url)
@@ -79,7 +82,10 @@
         return rest_client.ResponseBody(resp, body)
 
     def delete_quota_set(self, tenant_id):
-        """Delete the tenant's quota set."""
+        """Delete the tenant's quota set.
+
+        https://developer.openstack.org/api-ref/compute/#revert-quotas-to-defaults
+        """
         resp, body = self.delete('os-quota-sets/%s' % tenant_id)
         self.validate_response(schema.delete_quota, resp, body)
         return rest_client.ResponseBody(resp, body)
diff --git a/tempest/lib/services/volume/v2/quota_classes_client.py b/tempest/lib/services/volume/v2/quota_classes_client.py
index d40d2d9..733b1ac 100644
--- a/tempest/lib/services/volume/v2/quota_classes_client.py
+++ b/tempest/lib/services/volume/v2/quota_classes_client.py
@@ -26,8 +26,9 @@
     def show_quota_class_set(self, quota_class_id):
         """List quotas for a quota class.
 
-        TODO: Current api-site doesn't contain this API description.
-        LP: https://bugs.launchpad.net/nova/+bug/1602400
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://developer.openstack.org/api-ref/block-storage/v2/index.html#show-quota-classes
         """
         url = 'os-quota-class-sets/%s' % quota_class_id
         resp, body = self.get(url)
@@ -38,8 +39,9 @@
     def update_quota_class_set(self, quota_class_id, **kwargs):
         """Update quotas for a quota class.
 
-        TODO: Current api-site doesn't contain this API description.
-        LP: https://bugs.launchpad.net/nova/+bug/1602400
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://developer.openstack.org/api-ref/block-storage/v2/index.html#update-quota-classes
         """
         url = 'os-quota-class-sets/%s' % quota_class_id
         put_body = json.dumps({'quota_class_set': kwargs})
diff --git a/tox.ini b/tox.ini
index c0df8a6..892b6f4 100644
--- a/tox.ini
+++ b/tox.ini
@@ -123,6 +123,10 @@
     tempest run --serial --regex '\[.*\bsmoke\b.*\]' {posargs}
 
 [testenv:venv]
+deps =
+  -c{env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt}
+  -r{toxinidir}/requirements.txt
+  -r{toxinidir}/doc/requirements.txt
 commands = {posargs}
 
 [testenv:venv-tempest]