diff --git a/src/aleph/sdk/conf.py b/src/aleph/sdk/conf.py
index 36818cb5..bb40b3d8 100644
--- a/src/aleph/sdk/conf.py
+++ b/src/aleph/sdk/conf.py
@@ -3,7 +3,7 @@
 import os
 from pathlib import Path
 from shutil import which
-from typing import ClassVar, Dict, Optional, Union, List
+from typing import ClassVar, Dict, List, Optional, Union
 
 from aleph_message.models import Chain
 from aleph_message.models.execution.environment import HypervisorType