diff --git a/pytorchvideo/data/json_dataset.py b/pytorchvideo/data/json_dataset.py
index ac652329..a21174fa 100644
--- a/pytorchvideo/data/json_dataset.py
+++ b/pytorchvideo/data/json_dataset.py
@@ -7,11 +7,11 @@
 
 import torch
 from iopath.common.file_io import g_pathmgr
-from pytorchvideo.data.clip_sampling import ClipSampler
-from pytorchvideo.data.labeled_video_dataset import LabeledVideoDataset
 from pytorchvideo.data.clip_sampling import (
     ClipInfo,
 )
+from pytorchvideo.data.clip_sampling import ClipSampler
+from pytorchvideo.data.labeled_video_dataset import LabeledVideoDataset
 
 
 logger = logging.getLogger(__name__)