diff --git a/src/psm/Util/Install/Installer.php b/src/psm/Util/Install/Installer.php
index 06b740b1..573c9ed1 100644
--- a/src/psm/Util/Install/Installer.php
+++ b/src/psm/Util/Install/Installer.php
@@ -354,9 +354,6 @@ class Installer
         if (version_compare($version_from, '3.4.2', '<')) {
             $this->upgrade342();
         }
-        if (version_compare($version_from, '3.4.6-beta.1', '<')) {
-            $this->upgrade346();
-        }
         if (version_compare($version_from, '3.4.6-beta.3', '<')) {
             $this->upgrade346();
         }