diff --git a/heat_tempest_plugin/services/clients.py b/heat_tempest_plugin/services/clients.py
index a9bd981..697b5a6 100644
--- a/heat_tempest_plugin/services/clients.py
+++ b/heat_tempest_plugin/services/clients.py
@@ -20,7 +20,6 @@
     # see https://github.com/esnme/ultrajson/issues/346
     gnocchi_client = None
 from heatclient import client as heat_client
-from keystoneauth1 import exceptions as kc_exceptions
 from keystoneauth1.identity.generic import password
 from keystoneauth1 import session
 from neutronclient.v2_0 import client as neutron_client
@@ -109,23 +108,19 @@
     def _get_orchestration_client(self):
         endpoint = os.environ.get('HEAT_URL')
         if os.environ.get('OS_NO_CLIENT_AUTH') == 'True':
-            token = None
+            session = None
         else:
-            token = self.identity_client.auth_token
-        try:
-            if endpoint is None:
-                endpoint = self.identity_client.get_endpoint_url(
-                    'orchestration', region=self.conf.region,
-                    endpoint_type=self.conf.endpoint_type)
-        except kc_exceptions.EndpointNotFound:
-            return None
-        else:
-            return heat_client.Client(
-                self.HEATCLIENT_VERSION,
-                endpoint,
-                token=token,
-                username=self._username(),
-                password=self._password())
+            session = self.identity_client.session
+
+        return heat_client.Client(
+            self.HEATCLIENT_VERSION,
+            endpoint,
+            session=session,
+            endpoint_type=self.conf.endpoint_type,
+            service_type='orchestration',
+            region_name=self.conf.region,
+            username=self._username(),
+            password=self._password())
 
     def _get_identity_client(self):
         user_domain_id = self.conf.user_domain_id