diff --git a/chesscog/recognition/recognition.py b/chesscog/recognition/recognition.py
index 457a7dc..f00ccda 100644
--- a/chesscog/recognition/recognition.py
+++ b/chesscog/recognition/recognition.py
@@ -108,7 +108,7 @@ def _classify_pieces(self, img: np.ndarray, turn: chess.Color, corners: np.ndarr
         pieces = self._pieces_model(piece_imgs)
         pieces = pieces.argmax(axis=-1).cpu().numpy()
         pieces = self._piece_classes[pieces]
-        all_pieces = np.full(len(self._squares), None, dtype=np.object)
+        all_pieces = np.full(len(self._squares), None, dtype=object)
         all_pieces[occupancy] = pieces
         return all_pieces