diff --git a/tests/storage/business/test_url_resolver_service.py b/tests/storage/business/test_url_resolver_service.py
index 40dabc53c4..3979fd9f71 100644
--- a/tests/storage/business/test_url_resolver_service.py
+++ b/tests/storage/business/test_url_resolver_service.py
@@ -30,7 +30,7 @@ def test_resolve_matrix():
 
     resolver = UriResolverService(matrix_service=matrix_service)
 
-    assert MOCK_MATRIX_JSON == resolver.resolve("matrix://my-id")
+    assert MOCK_MATRIX_JSON == resolver.resolve("matrix://my-id", format="json")
     matrix_service.get.assert_called_once_with("my-id")
 
     assert f"1.000000\t2.000000{os.linesep}3.000000\t4.000000{os.linesep}" == resolver.resolve("matrix://my-id", False)
diff --git a/tests/storage/business/test_variant_study_service.py b/tests/storage/business/test_variant_study_service.py
index 53182ce3ee..150e38ba45 100644
--- a/tests/storage/business/test_variant_study_service.py
+++ b/tests/storage/business/test_variant_study_service.py
@@ -97,7 +97,7 @@ def task_status(*args):
     study_service.task_service.await_task.assert_called()
 
     study_service.exists.return_value = True
-    output = study_service.get(metadata=metadata, url=sub_route, depth=2)
+    output = study_service.get(metadata=metadata, url=sub_route, depth=2, format="json")
 
     assert output == data
 
diff --git a/tests/storage/repository/filesystem/matrix/test_input_series_matrix.py b/tests/storage/repository/filesystem/matrix/test_input_series_matrix.py
index e06edd587b..4cd98dd83a 100644
--- a/tests/storage/repository/filesystem/matrix/test_input_series_matrix.py
+++ b/tests/storage/repository/filesystem/matrix/test_input_series_matrix.py
@@ -67,9 +67,9 @@ def test_load__link_to_matrix(self, my_study_config: FileStudyTreeConfig) -> Non
         }
         link.write_text(matrix_uri)
 
-        def resolve(uri: str, formatted: bool = True) -> t.Dict[str, t.Any]:
+        def resolve(uri: str, format: t.Optional[str] = None) -> t.Dict[str, t.Any]:
             assert uri == matrix_uri
-            assert formatted is True
+            assert format == "json"
             return matrix_obj
 
         context = ContextServer(