diff --git a/requirements.txt b/requirements.txt
index 7520d42..bf38fae 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@
 # process, which may cause wedges in the gate later.
 pbr!=2.1.0,>=2.0.0 # Apache-2.0
 cliff!=2.9.0,>=2.8.0 # Apache-2.0
-jsonschema<3.0.0,>=2.6.0 # MIT
+jsonschema>=2.6.0 # MIT
 testtools>=2.2.0 # MIT
 paramiko>=2.0.0 # LGPLv2.1+
 netaddr>=0.7.18 # BSD
diff --git a/tempest/api/compute/servers/test_server_actions.py b/tempest/api/compute/servers/test_server_actions.py
index 93bd817..f6c3e73 100644
--- a/tempest/api/compute/servers/test_server_actions.py
+++ b/tempest/api/compute/servers/test_server_actions.py
@@ -92,6 +92,7 @@
             validatable=True,
             validation_resources=validation_resources,
             wait_until='ACTIVE')
+        self.addCleanup(self.delete_server, newserver['id'])
         # The server's password should be set to the provided password
         new_password = 'Newpass1234'
         self.client.change_password(newserver['id'], adminPass=new_password)
diff --git a/tempest/api/identity/admin/v3/test_endpoint_groups.py b/tempest/api/identity/admin/v3/test_endpoint_groups.py
index 625568d..7d85dc9 100644
--- a/tempest/api/identity/admin/v3/test_endpoint_groups.py
+++ b/tempest/api/identity/admin/v3/test_endpoint_groups.py
@@ -69,6 +69,7 @@
     @decorators.idempotent_id('7c69e7a1-f865-402d-a2ea-44493017315a')
     def test_create_list_show_check_delete_endpoint_group(self):
         service_id = self._create_service()
+        self.addCleanup(self.services_client.delete_service, service_id)
         name = data_utils.rand_name('service_group')
         description = data_utils.rand_name('description')
         filters = {'service_id': service_id}
@@ -129,6 +130,7 @@
         # Creating an endpoint group so as to check update endpoint group
         # with new values
         service1_id = self._create_service()
+        self.addCleanup(self.services_client.delete_service, service1_id)
         name = data_utils.rand_name('service_group')
         description = data_utils.rand_name('description')
         filters = {'service_id': service1_id}
diff --git a/tempest/common/waiters.py b/tempest/common/waiters.py
index 892565e..77ec0f8 100644
--- a/tempest/common/waiters.py
+++ b/tempest/common/waiters.py
@@ -104,8 +104,8 @@
         body = client.show_server(server_id)['server']
     except lib_exc.NotFound:
         return
-    old_status = server_status = body['status']
-    old_task_state = task_state = _get_task_state(body)
+    old_status = body['status']
+    old_task_state = _get_task_state(body)
     start_time = int(time.time())
     while True:
         time.sleep(client.build_interval)