diff --git a/wp-includes/version.php b/wp-includes/version.php
index ef40aac385..e17b9840e2 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -2,7 +2,7 @@
 
 // This holds the version number in a separate file so we can bump it without cluttering the SVN
 
-$wp_version = '2.1-alpha3';
+$wp_version = '2.1-beta1';
 $wp_db_version = 4351;
 
 ?>