diff --git a/arkindex/training/api.py b/arkindex/training/api.py
index c7d7220ae96ece53f8fd0426cbd0f8d93f4396d6..77289fab01822ca7819042ef6895be4696d7c4aa 100644
--- a/arkindex/training/api.py
+++ b/arkindex/training/api.py
@@ -737,7 +737,7 @@ class DatasetElementCursorPagination(CountCursorPagination):
     ordering = ("element_id", "id")
 
 
-class DatasetSetBase():
+class DatasetSetBase:
     permission_classes = (IsVerified, )
     serializer_class = DatasetSetSerializer
 
diff --git a/ruff.toml b/ruff.toml
index 1232c30820701cfa95c2a7cfea765841389e0617..c32039f30c1a2d27862956e4c2cf47fe36727757 100644
--- a/ruff.toml
+++ b/ruff.toml
@@ -45,6 +45,8 @@ select = [
     "UP032",
     # extraneous-parentheses
     "UP034",
+    # unnecessary-class-parentheses
+    "UP039",
 ]
 ignore = ["E501", "RET502", "RET503"]