diff --git a/octavia_tempest_plugin/tests/test_base.py b/octavia_tempest_plugin/tests/test_base.py
index f0477f48..70d51bac 100644
--- a/octavia_tempest_plugin/tests/test_base.py
+++ b/octavia_tempest_plugin/tests/test_base.py
@@ -71,8 +71,10 @@ class LoadBalancerBaseTest(validators.ValidatorsMixin,
             ['lb_observer', CONF.load_balancer.observer_role, 'reader'],
             ['lb_global_observer', CONF.load_balancer.global_observer_role,
              'reader'],
-            ['lb_member', CONF.load_balancer.member_role],
-            ['lb_member2', CONF.load_balancer.member_role]]
+            # Note: Some projects are now requiring the 'member' role by
+            # default (nova for example) so make sure our creds have this role
+            ['lb_member', CONF.load_balancer.member_role, 'member'],
+            ['lb_member2', CONF.load_balancer.member_role, 'member']]
 
     # If scope enforcement is enabled, add in the system scope credentials.
     # The project scope is already handled by the above credentials.
diff --git a/releasenotes/notes/Make-sure-member-credentials-have-the-member-role-for-new-defaults-5fbc2e05768c04b9.yaml b/releasenotes/notes/Make-sure-member-credentials-have-the-member-role-for-new-defaults-5fbc2e05768c04b9.yaml
new file mode 100644
index 00000000..89fc5a6a
--- /dev/null
+++ b/releasenotes/notes/Make-sure-member-credentials-have-the-member-role-for-new-defaults-5fbc2e05768c04b9.yaml
@@ -0,0 +1,7 @@
+---
+fixes:
+  - |
+    Some services are now enabling the "new default roles" which means all
+    non-admin users must have the "member" or "reader" role. This fix updates
+    the test credentials to include these roles when not running in
+    admin-or-owner test mode.