diff --git a/velovi/_module.py b/velovi/_module.py
index 2515b16..ac98a37 100644
--- a/velovi/_module.py
+++ b/velovi/_module.py
@@ -1,4 +1,5 @@
 """Main module."""
+
 from typing import Callable, Iterable, Literal, Optional
 
 import numpy as np