diff --git a/references/detection/utils.py b/references/detection/utils.py
index 1a84f2340d..265f63ff37 100644
--- a/references/detection/utils.py
+++ b/references/detection/utils.py
@@ -28,7 +28,7 @@ def plot_samples(images, targets: List[Dict[str, np.ndarray]]) -> None:
 
             for box in boxes:
                 if boxes.ndim == 3:
-                    cv2.fillPoly(target, [np.int0(box)], 1)
+                    cv2.fillPoly(target, [np.intp(box)], 1)
                 else:
                     target[int(box[1]) : int(box[3]) + 1, int(box[0]) : int(box[2]) + 1] = 1
         if nb_samples > 1: