diff --git a/lib/Alchemy/Phrasea/Core/Provider/ConfigurationTesterServiceProvider.php b/lib/Alchemy/Phrasea/Core/Provider/ConfigurationTesterServiceProvider.php
index ac61a2234c..ddeb34d411 100644
--- a/lib/Alchemy/Phrasea/Core/Provider/ConfigurationTesterServiceProvider.php
+++ b/lib/Alchemy/Phrasea/Core/Provider/ConfigurationTesterServiceProvider.php
@@ -13,7 +13,6 @@ namespace Alchemy\Phrasea\Core\Provider;
 
 use Alchemy\Phrasea\Setup\ConfigurationTester;
 use Alchemy\Phrasea\Application;
-use Alchemy\Phrasea\Setup\Version\PreSchemaUpgrade\PreSchemaUpgradeCollection;
 use Silex\Application as SilexApplication;
 use Silex\ServiceProviderInterface;
 
@@ -25,10 +24,6 @@ class ConfigurationTesterServiceProvider implements ServiceProviderInterface
         $app['phraseanet.configuration-tester'] = $app->share(function (Application $app) {
             return new ConfigurationTester($app);
         });
-
-        $app['phraseanet.pre-schema-upgrader'] = $app->share(function () {
-            return new PreSchemaUpgradeCollection();
-        });
     }
 
     public function boot(SilexApplication $app)
diff --git a/lib/Alchemy/Phrasea/Setup/Version/PreSchemaUpgrade/PreSchemaUpgradeCollection.php b/lib/Alchemy/Phrasea/Setup/Version/PreSchemaUpgrade/PreSchemaUpgradeCollection.php
deleted file mode 100644
index 866ba3b07e..0000000000
--- a/lib/Alchemy/Phrasea/Setup/Version/PreSchemaUpgrade/PreSchemaUpgradeCollection.php
+++ /dev/null
@@ -1,41 +0,0 @@
-<?php
-
-/*
- * This file is part of Phraseanet
- *
- * (c) 2005-2013 Alchemy
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace Alchemy\Phrasea\Setup\Version\PreSchemaUpgrade;
-
-use Alchemy\Phrasea\Application;
-
-/**
- * Collection of Doctrine schema pre-upgrades
- */
-class PreSchemaUpgradeCollection
-{
-    /** @var PreSchemaUpgradeInterface[] */
-    private $upgrades = [];
-
-    public function __construct()
-    {
-    }
-
-    /**
-     * Applies all applyable upgrades
-     *
-     * @param Application $app
-     */
-    public function apply(Application $app)
-    {
-        foreach ($this->upgrades as $upgrade) {
-            if ($upgrade->isApplyable($app)) {
-                $upgrade->apply($app['EM']);
-            }
-        }
-    }
-}
diff --git a/lib/Alchemy/Phrasea/Setup/Version/PreSchemaUpgrade/PreSchemaUpgradeInterface.php b/lib/Alchemy/Phrasea/Setup/Version/PreSchemaUpgrade/PreSchemaUpgradeInterface.php
deleted file mode 100644
index e21f2423ff..0000000000
--- a/lib/Alchemy/Phrasea/Setup/Version/PreSchemaUpgrade/PreSchemaUpgradeInterface.php
+++ /dev/null
@@ -1,38 +0,0 @@
-<?php
-
-/*
- * This file is part of Phraseanet
- *
- * (c) 2005-2013 Alchemy
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace Alchemy\Phrasea\Setup\Version\PreSchemaUpgrade;
-
-use Doctrine\ORM\EntityManager;
-use Alchemy\Phrasea\Application;
-
-/**
- * Interface for DB schema upgrade that have to be done before Doctrine schema
- * upgrade
- */
-interface PreSchemaUpgradeInterface
-{
-    /**
-     * Applies the pre-upgrade/
-     *
-     * @param EntityManager $em
-     */
-    public function apply(EntityManager $em);
-
-    /**
-     * Returns true if the Upgrade is applyable
-     *
-     * @param Application $app
-     *
-     * @return Boolean
-     */
-    public function isApplyable(Application $app);
-}
diff --git a/lib/classes/appbox.php b/lib/classes/appbox.php
index cae0385fe8..0cd3a7d654 100644
--- a/lib/classes/appbox.php
+++ b/lib/classes/appbox.php
@@ -306,8 +306,6 @@ class appbox extends base
 
         $upgrader->set_current_message(_('Creating new tables'));
 
-        $app['phraseanet.pre-schema-upgrader']->apply($app);
-
         $upgrader->add_steps_complete(1);
 
         /**