diff --git a/opencompass/__init__.py b/opencompass/__init__.py
index 13a85f77..44b18069 100644
--- a/opencompass/__init__.py
+++ b/opencompass/__init__.py
@@ -1 +1 @@
-__version__ = '0.2.5'
+__version__ = '0.2.6'
diff --git a/opencompass/cli/main.py b/opencompass/cli/main.py
index fd1409cc..bb47221e 100644
--- a/opencompass/cli/main.py
+++ b/opencompass/cli/main.py
@@ -4,7 +4,6 @@ import argparse
 import getpass
 import os
 import os.path as osp
-from copy import deepcopy
 from datetime import datetime
 
 from mmengine.config import Config, DictAction
@@ -349,7 +348,7 @@ def main():
 
         # For subjective summarizer
         if summarizer_cfg.get('function', None):
-            main_summarizer_cfg = deepcopy(summarizer_cfg)
+            main_summarizer_cfg = copy.deepcopy(summarizer_cfg)
             grouped_datasets = {}
             for dataset in cfg.datasets:
                 prefix = dataset['abbr'].split('_')[0]
@@ -361,7 +360,7 @@ def main():
                 all_grouped_lists.append(grouped_datasets[prefix])
             dataset_score_container = []
             for dataset in all_grouped_lists:
-                temp_cfg = deepcopy(cfg)
+                temp_cfg = copy.deepcopy(cfg)
                 temp_cfg.datasets = dataset
                 summarizer_cfg = dict(type=dataset[0]['summarizer']['type'], config=temp_cfg)
                 summarizer = build_from_cfg(summarizer_cfg)
@@ -378,5 +377,7 @@ def main():
             summarizer = build_from_cfg(summarizer_cfg)
             summarizer.summarize(time_str=cfg_time_str)
 
+
+
 if __name__ == '__main__':
     main()
diff --git a/opencompass/datasets/subjective/mtbench101.py b/opencompass/datasets/subjective/mtbench101.py
index 070e47ec..a6852245 100644
--- a/opencompass/datasets/subjective/mtbench101.py
+++ b/opencompass/datasets/subjective/mtbench101.py
@@ -4,7 +4,6 @@ import os.path as osp
 import re
 
 from datasets import Dataset, DatasetDict
-from torch.utils.data import DataLoader
 
 from opencompass.registry import LOAD_DATASET