diff --git a/beat/web/attestations/signals/__init__.py b/beat/web/attestations/signals/__init__.py
index 48da41c0bbf0b979888c80286d468f1f899ca710..04535d5a74998642ebc019a1de7ba3c16f2262d7 100644
--- a/beat/web/attestations/signals/__init__.py
+++ b/beat/web/attestations/signals/__init__.py
@@ -28,4 +28,3 @@
 import django.dispatch
 
 unlocked = django.dispatch.Signal()
-
diff --git a/beat/web/attestations/signals/handlers.py b/beat/web/attestations/signals/handlers.py
index 910211790dc965087092b6efec3e13ad54ba91da..87a0b870bff54da86f4f663a31ce8dcd696ad3be 100644
--- a/beat/web/attestations/signals/handlers.py
+++ b/beat/web/attestations/signals/handlers.py
@@ -25,12 +25,12 @@
 #                                                                             #
 ###############################################################################
 
-from django.dispatch import receiver
-
 from actstream import action
+from django.dispatch import receiver
 
 from ..signals import unlocked
 
+
 @receiver(unlocked)
 def on_unlocked(sender, **kwargs):
     action.send(sender.experiment.author, verb="published", target=sender)