diff --git a/src/convert_geometry.py b/src/convert_geometry.py
index e4cb5cb..ccd5f79 100644
--- a/src/convert_geometry.py
+++ b/src/convert_geometry.py
@@ -43,7 +43,8 @@ def convert_annotation(ann_info, img_info, src_meta, dst_meta, rectangle_mark):
         return sly.Annotation((img_info.height, img_info.width))
     new_labels = []
 
-    for binding_key, labels in ann.get_bindings():
+    groups = ann.get_bindings()
+    for binding_key, labels in groups.items():
         for label in labels:
             try:
                 new_cls = dst_meta.obj_classes.get(label.obj_class.name)
diff --git a/src/functions.py b/src/functions.py
index 412c438..f60b8d1 100644
--- a/src/functions.py
+++ b/src/functions.py
@@ -77,7 +77,7 @@ def create_coco_dataset(coco_dataset_dir):
     return img_dir, ann_dir
 
 
-def get_bbox_labels(bbox_points: List[List[int, int]]) -> List[List[int, int]]:
+def get_bbox_labels(bbox_points: List[List[int]]) -> List[List[int]]:
     """
     A helper function to convert list of bbox points into a bbox which contains them all
     """
@@ -120,7 +120,6 @@ def create_coco_annotation(
             coco_captions["images"].append(image_coco_ann)
 
         groups = ann.get_bindings()
-
         for binding_key, labels in groups.items():
             labels: List[sly.Label]
             if binding_key is not None:  # -> converted bitmap labels