diff --git a/lib/autoload/sfCoreAutoload.class.php b/lib/autoload/sfCoreAutoload.class.php
index 5771e5dca..b542a20d5 100644
--- a/lib/autoload/sfCoreAutoload.class.php
+++ b/lib/autoload/sfCoreAutoload.class.php
@@ -11,7 +11,7 @@
 /**
  * The current symfony version.
  */
-define('SYMFONY_VERSION', '1.5.1-DEV');
+define('SYMFONY_VERSION', '1.5.2');
 
 /**
  * sfCoreAutoload class.