diff --git a/antarest/study/business/binding_constraint_management.py b/antarest/study/business/binding_constraint_management.py
index 95dfd305c2..0e30a2e2b8 100644
--- a/antarest/study/business/binding_constraint_management.py
+++ b/antarest/study/business/binding_constraint_management.py
@@ -853,7 +853,7 @@ def update_binding_constraints(
                 raise BindingConstraintNotFound(f"Binding constraint '{bc_id}' not found")
 
             props = create_binding_constraint_config(study_version, **value.dict())
-            new_values = props.model_dump(mode='json', by_alias=True, exclude_unset=True)
+            new_values = props.model_dump(mode="json", by_alias=True, exclude_unset=True)
             upd_obj = config[dict_config[bc_id]]
             current_value = copy.deepcopy(upd_obj)
             upd_obj.update(new_values)