diff --git a/openlp/plugins/songusage/lib/upgrade.py b/openlp/plugins/songusage/lib/upgrade.py
index 1824fd594..50ca32fcd 100644
--- a/openlp/plugins/songusage/lib/upgrade.py
+++ b/openlp/plugins/songusage/lib/upgrade.py
@@ -31,7 +31,6 @@ backend for the SongsUsage plugin
 
 from sqlalchemy import Column, Table, types
 from migrate import changeset
-from migrate.changeset.constraint import ForeignKeyConstraint
 
 __version__ = 1