diff --git a/libraries/Config.class.php b/libraries/Config.class.php
index 8e756670d..5d3c8694a 100644
--- a/libraries/Config.class.php
+++ b/libraries/Config.class.php
@@ -80,7 +80,7 @@ class PMA_Config
      */
     function checkSystem()
     {
-        $this->set('PMA_VERSION', '2.9.0');
+        $this->set('PMA_VERSION', '2.9.1-dev');
         /**
          * @deprecated
          */