diff --git a/tests/test_cloud_sync_progress.py b/tests/test_cloud_sync_progress.py
index eac211769..94601113e 100644
--- a/tests/test_cloud_sync_progress.py
+++ b/tests/test_cloud_sync_progress.py
@@ -111,7 +111,7 @@ class TestCloudSyncProgressDialogInit(unittest.TestCase):
     def _make_dialog(self, direction="pre-launch"):
         game = _make_game()
         sync_func = MagicMock(return_value=[])
-        dialog = object.__new__(CloudSyncProgressDialog)
+        dialog = CloudSyncProgressDialog.__new__(CloudSyncProgressDialog)
         dialog.game = game
         dialog._sync_func = sync_func
         dialog._direction = direction
@@ -140,7 +140,7 @@ class TestCloudSyncProgressDialogRunSync(unittest.TestCase):
     def _make_dialog(self):
         game = _make_game()
         sync_func = MagicMock(return_value=[])
-        dialog = object.__new__(CloudSyncProgressDialog)
+        dialog = CloudSyncProgressDialog.__new__(CloudSyncProgressDialog)
         dialog.game = game
         dialog._sync_func = sync_func
         dialog._direction = "pre-launch"
@@ -173,7 +173,7 @@ class TestCloudSyncProgressDialogCallbacks(unittest.TestCase):
         """Create a dialog with all GTK interactions mocked out."""
         game = _make_game()
         sync_func = MagicMock(return_value=[])
-        dialog = object.__new__(CloudSyncProgressDialog)
+        dialog = CloudSyncProgressDialog.__new__(CloudSyncProgressDialog)
         dialog.game = game
         dialog._sync_func = sync_func
         dialog._direction = "pre-launch"
@@ -281,7 +281,7 @@ class TestCloudSyncProgressDialogSkip(unittest.TestCase):
     def _make_dialog(self):
         game = _make_game()
         sync_func = MagicMock(return_value=[])
-        dialog = object.__new__(CloudSyncProgressDialog)
+        dialog = CloudSyncProgressDialog.__new__(CloudSyncProgressDialog)
         dialog.game = game
         dialog._sync_func = sync_func
         dialog._direction = "pre-launch"
diff --git a/tests/test_gog_cloud.py b/tests/test_gog_cloud.py
index 620ecba56..ffb129210 100644
--- a/tests/test_gog_cloud.py
+++ b/tests/test_gog_cloud.py
@@ -301,7 +301,7 @@ class TestGOGCloudStorageClient(unittest.TestCase):
 
     def test_download_file(self):
         mock_response = MagicMock()
-        mock_response.read.return_value = b"save file content"
+        mock_response.read.return_value = gzip.compress(b"save file content")
         mock_response.getheaders.return_value = [("X-Object-Meta-LocalLastModified", "2024-01-15T10:00:00+00:00")]
 
         with tempfile.TemporaryDirectory() as tmpdir:
@@ -339,7 +339,7 @@ class TestGOGCloudStorageClient(unittest.TestCase):
 
     def test_download_file_invalid_timestamp(self):
         mock_response = MagicMock()
-        mock_response.read.return_value = b"data"
+        mock_response.read.return_value = gzip.compress(b"data")
         mock_response.getheaders.return_value = [("X-Object-Meta-LocalLastModified", "not a date")]
 
         with tempfile.TemporaryDirectory() as tmpdir: