diff --git a/cloudman/clusterman/tests/test_cluster_api.py b/cloudman/clusterman/tests/test_cluster_api.py
index 995a12ea..b631ac53 100644
--- a/cloudman/clusterman/tests/test_cluster_api.py
+++ b/cloudman/clusterman/tests/test_cluster_api.py
@@ -927,4 +927,4 @@ def test_scale_up_unschedulable(self):
         # Ensure that the created node has the correct size
         vm_types = self._get_cluster_node_vm_types(cluster_id)
         self.assertEqual(len(vm_types), 1)
-        self.assertTrue("r5.24xlarge" in vm_types or "r5d.24xlarge" in vm_types)
+        self.assertTrue("m5.24xlarge" in vm_types)
diff --git a/requirements_test.txt b/requirements_test.txt
index 6099826b..650d0347 100644
--- a/requirements_test.txt
+++ b/requirements_test.txt
@@ -1,3 +1,4 @@
+responses<=0.12
 git+https://github.com/celery/django-celery-results
 brotlipy
 paramiko