diff --git a/src/iosanita/contenttypes/restapi/controlpanel.py b/src/iosanita/contenttypes/restapi/controlpanel.py
index 3cdf3ee..f8616ee 100644
--- a/src/iosanita/contenttypes/restapi/controlpanel.py
+++ b/src/iosanita/contenttypes/restapi/controlpanel.py
@@ -1,6 +1,8 @@
 from iosanita.contenttypes.interfaces import IIosanitaContenttypesLayer
 from iosanita.contenttypes.interfaces.settings import IIoSanitaContenttypesSettings
-from iosanita.contenttypes.interfaces.settings import IIoSanitaContenttypesSettingsControlpanel
+from iosanita.contenttypes.interfaces.settings import (
+    IIoSanitaContenttypesSettingsControlpanel,
+)
 from plone.restapi.controlpanels import RegistryConfigletPanel
 from zope.component import adapter
 from zope.interface import implementer
diff --git a/src/iosanita/contenttypes/restapi/serializers/relationfield.py b/src/iosanita/contenttypes/restapi/serializers/relationfield.py
index f4ba5fb..8417d88 100644
--- a/src/iosanita/contenttypes/restapi/serializers/relationfield.py
+++ b/src/iosanita/contenttypes/restapi/serializers/relationfield.py
@@ -1,7 +1,9 @@
 from iosanita.contenttypes.interfaces import IIosanitaContenttypesLayer
 from plone.dexterity.interfaces import IDexterityContent
 from plone.restapi.interfaces import IFieldSerializer
-from plone.restapi.serializer.relationfield import RelationListFieldSerializer as BaseSerializer
+from plone.restapi.serializer.relationfield import (
+    RelationListFieldSerializer as BaseSerializer,
+)
 from z3c.relationfield.interfaces import IRelationList
 from zope.component import adapter
 from zope.interface import implementer