Index: Migration/Scripts/src/Migration.Scripts.Data/UpgradeScript.cs
===================================================================
diff -u -r7050299dc93fba048f82eb9e11d90c86a8508596 -r07ab02003751f717e8534ff7392cb915efcdc3b8
--- Migration/Scripts/src/Migration.Scripts.Data/UpgradeScript.cs	(.../UpgradeScript.cs)	(revision 7050299dc93fba048f82eb9e11d90c86a8508596)
+++ Migration/Scripts/src/Migration.Scripts.Data/UpgradeScript.cs	(.../UpgradeScript.cs)	(revision 07ab02003751f717e8534ff7392cb915efcdc3b8)
@@ -93,7 +93,7 @@
         /// <item><paramref name="target"/> is <c>null</c>.</item>
         /// </list></exception>
         /// <exception cref="SQLiteException">Thrown when executing query failed.</exception>
-        public void Upgrade(VersionedFile source, VersionedFile target)
+        public void Upgrade(IVersionedFile source, IVersionedFile target)
         {
             if (source == null)
             {