diff --git a/core/Version.php b/core/Version.php
index a924b46bc7d2de2bd0739cf59c5f12e50c50d296..af6db311ed952cdd95bd323fdaf5e28a077d27a0 100644
--- a/core/Version.php
+++ b/core/Version.php
@@ -21,5 +21,5 @@ final class Version
      * The current Piwik version.
      * @var string
      */
-    const VERSION = '2.9.0-b3';
+    const VERSION = '2.9.0-b4';
 }