diff --git a/src/DependencyInjection/WebfactoryPolyglotExtension.php b/src/DependencyInjection/WebfactoryPolyglotExtension.php
index 85825ec..8513c55 100644
--- a/src/DependencyInjection/WebfactoryPolyglotExtension.php
+++ b/src/DependencyInjection/WebfactoryPolyglotExtension.php
@@ -12,14 +12,14 @@
 use Symfony\Component\Config\FileLocator;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\DependencyInjection\Extension\Extension;
-use Symfony\Component\DependencyInjection\Loader\XmlFileLoader;
+use Symfony\Component\DependencyInjection\Loader\PhpFileLoader;
 
 final class WebfactoryPolyglotExtension extends Extension
 {
     public function load(array $configs, ContainerBuilder $container): void
     {
-        $loader = new XmlFileLoader($container, new FileLocator(__DIR__.'/../Resources/config'));
-        $loader->load('services.xml');
+        $loader = new PhpFileLoader($container, new FileLocator(__DIR__.'/../Resources/config'));
+        $loader->load('services.php');
 
         $m = ['defaultLocale' => 'de_DE'];
         foreach ($configs as $c) {
diff --git a/src/Resources/config/services.php b/src/Resources/config/services.php
new file mode 100644
index 0000000..c47bd51
--- /dev/null
+++ b/src/Resources/config/services.php
@@ -0,0 +1,24 @@
+<?php
+
+namespace Symfony\Component\DependencyInjection\Loader\Configurator;
+
+return static function (ContainerConfigurator $container) {
+    $services = $container->services();
+    $parameters = $container->parameters();
+
+    $services->defaults()
+        ->autowire()
+        ->autoconfigure();
+
+    $services->set(\Webfactory\Bundle\PolyglotBundle\Doctrine\PolyglotListener::class)
+        ->tag('doctrine.event_listener', ['priority' => -100, 'event' => 'postFlush'])
+        ->tag('doctrine.event_listener', ['priority' => -100, 'event' => 'prePersist'])
+        ->tag('doctrine.event_listener', ['priority' => -100, 'event' => 'preFlush'])
+        ->tag('doctrine.event_listener', ['priority' => -100, 'event' => 'postLoad'])
+        ->tag('monolog.logger', ['channel' => 'webfactory_polyglot_bundle']);
+
+    $services->set(\Webfactory\Bundle\PolyglotBundle\EventListener\LocaleListener::class);
+
+    $services->set(\Webfactory\Bundle\PolyglotBundle\Locale\DefaultLocaleProvider::class)
+        ->call('setDefaultLocale', ['%webfactory.polyglot.default_locale%']);
+};
diff --git a/src/Resources/config/services.xml b/src/Resources/config/services.xml
deleted file mode 100644
index 13dc2ed..0000000
--- a/src/Resources/config/services.xml
+++ /dev/null
@@ -1,25 +0,0 @@
-<?xml version="1.0" ?>
-
-<container xmlns="http://symfony.com/schema/dic/services"
-           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-           xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">
-    <services>
-        <defaults autowire="true" autoconfigure="true" />
-
-        <service id="Webfactory\Bundle\PolyglotBundle\Doctrine\PolyglotListener">
-            <tag name="doctrine.event_listener" priority="-100" event="postFlush"/>
-            <tag name="doctrine.event_listener" priority="-100" event="prePersist"/>
-            <tag name="doctrine.event_listener" priority="-100" event="preFlush"/>
-            <tag name="doctrine.event_listener" priority="-100" event="postLoad"/>
-            <tag name="monolog.logger" channel="webfactory_polyglot_bundle"/>
-        </service>
-
-        <service id="Webfactory\Bundle\PolyglotBundle\EventListener\LocaleListener" />
-
-        <service id="Webfactory\Bundle\PolyglotBundle\Locale\DefaultLocaleProvider">
-            <call method="setDefaultLocale">
-                <argument>%webfactory.polyglot.default_locale%</argument>
-            </call>
-        </service>
-    </services>
-</container>