diff --git a/DependencyInjection/Configuration.php b/DependencyInjection/Configuration.php
index d4d378a..a37a7e2 100644
--- a/DependencyInjection/Configuration.php
+++ b/DependencyInjection/Configuration.php
@@ -29,8 +29,13 @@ class Configuration implements ConfigurationInterface
      */
     public function getConfigTreeBuilder()
     {
-        $treeBuilder = new TreeBuilder();
-        $rootNode = $treeBuilder->root('eko_feed');
+        $treeBuilder = new TreeBuilder('eko_feed');
+
+        if (\method_exists($treeBuilder, 'getRootNode')) {
+            $rootNode = $treeBuilder->getRootNode();
+        } else {
+            $rootNode = $treeBuilder->root('eko_feed');
+        }
 
         $rootNode
             ->children()