diff --git a/mmdet3d/__init__.py b/mmdet3d/__init__.py
index 643c39c9..867b5d98 100644
--- a/mmdet3d/__init__.py
+++ b/mmdet3d/__init__.py
@@ -1,4 +1,5 @@
 # Copyright (c) OpenMMLab. All rights reserved.
+# Copyright 2024 Huawei Technologies Co., Ltd
 import mmcv
 
 import mmdet
@@ -19,7 +20,7 @@ def digit_version(version_str):
 
 
 mmcv_minimum_version = '1.5.2'
-mmcv_maximum_version = '1.7.0'
+mmcv_maximum_version = '1.8.0'
 mmcv_version = digit_version(mmcv.__version__)
 
 
@@ -46,4 +47,4 @@ assert (mmseg_version >= digit_version(mmseg_minimum_version)
     f'Please install mmseg>={mmseg_minimum_version}, ' \
     f'<={mmseg_maximum_version}.'
 
-__all__ = ['__version__', 'short_version']
+__all__ = ['__version__', 'short_version']
\ No newline at end of file
diff --git a/mmdet3d/datasets/custom_3d.py b/mmdet3d/datasets/custom_3d.py
index 9c6e3517..cc66c424 100644
--- a/mmdet3d/datasets/custom_3d.py
+++ b/mmdet3d/datasets/custom_3d.py
@@ -1,4 +1,5 @@
 # Copyright (c) OpenMMLab. All rights reserved.
+# Copyright 2024 Huawei Technologies Co., Ltd
 import tempfile
 import warnings
 from os import path as osp
@@ -85,7 +86,7 @@ class Custom3DDataset(Dataset):
         # load annotations
         if hasattr(self.file_client, 'get_local_path'):
             with self.file_client.get_local_path(self.ann_file) as local_path:
-                self.data_infos = self.load_annotations(open(local_path, 'rb'))
+                self.data_infos = self.load_annotations(local_path)
         else:
             warnings.warn(
                 'The used MMCV version does not have get_local_path. '
@@ -445,4 +446,4 @@ class Custom3DDataset(Dataset):
         otherwise group 0. In 3D datasets, they are all the same, thus are all
         zeros.
         """
-        self.flag = np.zeros(len(self), dtype=np.uint8)
+        self.flag = np.zeros(len(self), dtype=np.uint8)
\ No newline at end of file
diff --git a/requirements/runtime.txt b/requirements/runtime.txt
index 643cb0cd..d63a41fe 100644
--- a/requirements/runtime.txt
+++ b/requirements/runtime.txt
@@ -1,10 +1,9 @@
 lyft_dataset_sdk
 networkx>=2.2,<2.3
-numba==0.53.0
-numpy
+numpy==1.22.0
 nuscenes-devkit
 plyfile
 scikit-image
 # by default we also use tensorboard to log results
 tensorboard
-trimesh>=2.35.39,<2.35.40
+trimesh>=2.35.39,<2.35.40
\ No newline at end of file