diff --git a/tools/oneoff/migrate_atlas_format.py b/tools/oneoff/migrate_atlas_format.py
index efdb1c58..b507c39c 100644
--- a/tools/oneoff/migrate_atlas_format.py
+++ b/tools/oneoff/migrate_atlas_format.py
@@ -10,7 +10,6 @@
 from io import TextIOWrapper
 import re
 import json
-
 import tqdm
 
 END_IMAGE = 166