diff --git a/tasks.py b/tasks.py
new file mode 100644
index 0000000..36be8bc
--- /dev/null
+++ b/tasks.py
@@ -0,0 +1,9 @@
+# -*- coding: utf-8 -*-
+from celery.task import periodic_task
+
+@periodic_task(run_every=timedelta(hours=1), queue='encoding')
+def subtitles_user(**kwargs):
+    import annotation.models
+    from user.models import User
+    u = User.object.get(username='subtitles')
+    annotation.models.Annotation.objects.filter(layer='subtitles').exclude(user=u).update(user=u)