diff --git a/version.php b/version.php
index 41ca75bf2e6..89dfcb5aa4f 100644
--- a/version.php
+++ b/version.php
@@ -30,10 +30,10 @@
 defined('MOODLE_INTERNAL') || die();
 
 
-$version  = 2011051100.00;              // YYYYMMDD      = weekly release date of this DEV branch
+$version  = 2011051800.00;              // YYYYMMDD      = weekly release date of this DEV branch
                                         //         RR    = release increments - 00 in DEV branches
                                         //           .XX = incremental changes
 
-$release  = '2.1dev (Build: 20110511)'; // Human-friendly version name
+$release  = '2.1dev (Build: 20110518)'; // Human-friendly version name
 
 $maturity = MATURITY_ALPHA;             // this version's maturity level