diff --git a/backup/version.php b/backup/version.php
index 60c3e32be56..16e9ce5dac0 100644
--- a/backup/version.php
+++ b/backup/version.php
@@ -5,6 +5,6 @@
 // database (backup_version) to determine whether upgrades should
 // be performed (see db/backup_*.php)
 
-$backup_version = 2005041100;   // The current version is a date (YYYYMMDDXX)
+$backup_version = 2005042200;   // The current version is a date (YYYYMMDDXX)
 
-$backup_release = "1.5 development";  // User-friendly version number
+$backup_release = "1.5 pre-beta";  // User-friendly version number