diff --git a/ote_sdk/ote_sdk/tests/entities/test_dataset_item.py b/ote_sdk/ote_sdk/tests/entities/test_dataset_item.py
index 3cda1537dc9..44bf7df78c4 100644
--- a/ote_sdk/ote_sdk/tests/entities/test_dataset_item.py
+++ b/ote_sdk/ote_sdk/tests/entities/test_dataset_item.py
@@ -570,7 +570,7 @@ def test_dataset_item_get_annotations(self):
         partial_box_dataset_item.roi = Annotation(
             shape=Rectangle(x1=0.0, y1=0.0, x2=0.4, y2=0.5), labels=[]
         )
-        expected_annotation = first_annotation
+        expected_annotation = deepcopy(first_annotation)
         expected_annotation.shape = expected_annotation.shape.denormalize_wrt_roi_shape(
             roi_shape=partial_box_dataset_item.roi.shape
         )