diff --git a/murano/tests/functional/api/base.py b/murano/tests/functional/api/base.py
index 193c7a76b..42c824a72 100644
--- a/murano/tests/functional/api/base.py
+++ b/murano/tests/functional/api/base.py
@@ -20,7 +20,7 @@ import uuid
 import requests
 from tempest import clients
 from tempest.common import cred_provider
-from tempest.common import isolated_creds
+from tempest.common import dynamic_creds
 from tempest import config
 from tempest import test
 from tempest_lib.common import rest_client
@@ -290,12 +290,12 @@ class NegativeTestCase(TestCase):
 
         # If no credentials are provided, the Manager will use those
         # in CONF.identity and generate an auth_provider from them
-        cls.isolated_creds = isolated_creds.IsolatedCreds('v2',
-                                                          name=cls.__name__)
-        creds = cls.isolated_creds.get_alt_creds()
+        cls.dynamic_creds = dynamic_creds.DynamicCredentialProvider(
+            'v2', name=cls.__name__)
+        creds = cls.dynamic_creds.get_alt_creds()
         mgr = clients.Manager(credentials=creds)
         cls.alt_client = MuranoClient(mgr.auth_provider)
 
     @classmethod
     def purge_creds(cls):
-        cls.isolated_creds.clear_isolated_creds()
+        cls.dynamic_creds.clear_creds()