diff --git a/waifu/datasets/kajiwoto.py b/waifu/datasets/kajiwoto.py
index 5d2cb8d..3bf09f9 100644
--- a/waifu/datasets/kajiwoto.py
+++ b/waifu/datasets/kajiwoto.py
@@ -1,9 +1,9 @@
 import json
+import logging
 import os
+import re
 import typing as t
 from dataclasses import dataclass
-import re
-import logging
 
 from waifu.datasets import BaseDataset
 from waifu.utils.dataset import get_data_path
diff --git a/waifu/scripts/build_dataset.py b/waifu/scripts/build_dataset.py
index cea36d6..c146587 100755
--- a/waifu/scripts/build_dataset.py
+++ b/waifu/scripts/build_dataset.py
@@ -3,11 +3,11 @@ import argparse
 import hashlib
 import importlib
 import json
+import logging
 import os
 import subprocess
 import sys
 import typing as t
-import logging
 
 from waifu.modules import BaseModule