diff --git a/wp-includes/version.php b/wp-includes/version.php
index 6a04d1735c..e3abefa909 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -29,7 +29,7 @@ $tinymce_version = '327-1235';
  *
  * @global string $manifest_version
  */
-$manifest_version = '20090616';
+$manifest_version = '20100502';
 
 /**
  * Holds the required PHP version