diff --git a/pulp_file/tests/functional/api/test_domains.py b/pulp_file/tests/functional/api/test_domains.py
index b687873d0e8..a90329a9c9a 100644
--- a/pulp_file/tests/functional/api/test_domains.py
+++ b/pulp_file/tests/functional/api/test_domains.py
@@ -128,7 +128,7 @@ def test_artifact_upload(
     assert dup_artifact.sha256 == second_artifact.sha256
 
     # Delete the artifacts so domain can be deleted
-    body = {"orphan_protection_time": 0, "content_hrefs": second_artifact_href}
+    body = {"orphan_protection_time": 0, "content_hrefs": [second_artifact_href]}
     task = pulpcore_bindings.OrphansCleanupApi.cleanup(body, pulp_domain=domain.name).task
     monitor_task(task)
 
diff --git a/pulpcore/pytest_plugin.py b/pulpcore/pytest_plugin.py
index 080e30ef96e..4b2850fb14a 100644
--- a/pulpcore/pytest_plugin.py
+++ b/pulpcore/pytest_plugin.py
@@ -897,7 +897,7 @@ def _add_to_cleanup(api_client, pulp_href):
             # Also we can never be sure which one is the right ApiException to catch.
             if isinstance(api_client, ArtifactsApi):
                 task_url = pulpcore_bindings.OrphansCleanupApi.cleanup(
-                    {"orphan_protection_time": 0, "content_hrefs": pulp_href}
+                    {"orphan_protection_time": 0, "content_hrefs": [pulp_href]}
                 ).task
             else:
                 task_url = api_client.delete(pulp_href).task
diff --git a/pulpcore/tests/functional/api/test_crd_artifacts.py b/pulpcore/tests/functional/api/test_crd_artifacts.py
index c0d6213bed6..2d9c0f4340a 100644
--- a/pulpcore/tests/functional/api/test_crd_artifacts.py
+++ b/pulpcore/tests/functional/api/test_crd_artifacts.py
@@ -34,7 +34,7 @@ def _upload_valid_attrs(artifact_api, file, data):
         for key, val in artifact.to_dict().items():
             assert getattr(read_artifact, key) == val
         # Delete the Artifact
-        body = {"orphan_protection_time": 0, "content_hrefs": read_artifact.pulp_href}
+        body = {"orphan_protection_time": 0, "content_hrefs": [read_artifact.pulp_href]}
         monitor_task(pulpcore_bindings.OrphansCleanupApi.cleanup(body).task)
         with pytest.raises(ApiException) as e:
             artifact_api.read(read_artifact.pulp_href)
@@ -171,7 +171,7 @@ def test_delete_artifact(pulpcore_bindings, pulpcore_random_file, gen_user, moni
     assert e.value.status == 403
 
     # remove artifact through orphan cleanup
-    body = {"orphan_protection_time": 0, "content_hrefs": artifact.pulp_href}
+    body = {"orphan_protection_time": 0, "content_hrefs": [artifact.pulp_href]}
     monitor_task(pulpcore_bindings.OrphansCleanupApi.cleanup(body).task)
     file_exists = os.path.exists(path_to_file)
     assert not file_exists