diff --git a/src/kili/use_cases/base.py b/src/kili/use_cases/base.py
index 1a2dd0077..1cf7ac6ac 100644
--- a/src/kili/use_cases/base.py
+++ b/src/kili/use_cases/base.py
@@ -1,6 +1,7 @@
 """Base class for all use cases."""
 
 import abc
+
 from kili.adapters.kili_api_gateway import KiliAPIGateway