diff --git a/core/Version.php b/core/Version.php
index e19532f0996..46b8de03c4a 100644
--- a/core/Version.php
+++ b/core/Version.php
@@ -21,5 +21,5 @@ final class Version
      * The current Piwik version.
      * @var string
      */
-    const VERSION = '2.1-rc9';
+    const VERSION = '2.1.1-b1';
 }