diff --git a/DependencyInjection/Configuration.php b/DependencyInjection/Configuration.php
index 181f73b..5ff7320 100644
--- a/DependencyInjection/Configuration.php
+++ b/DependencyInjection/Configuration.php
@@ -10,8 +10,8 @@ class Configuration implements ConfigurationInterface
 {
     public function getConfigTreeBuilder()
     {
-        $treeBuilder = new TreeBuilder();
-        $rootNode = $treeBuilder->root('tdbm');
+        $treeBuilder = new TreeBuilder('tdbm');
+        $rootNode = $treeBuilder->getRootNode();
 
         $rootNode
             ->children()
diff --git a/composer.json b/composer.json
index 6dd79a1..84e43da 100644
--- a/composer.json
+++ b/composer.json
@@ -23,15 +23,15 @@
   "require" : {
     "php" : ">=7.1",
     "thecodingmachine/tdbm" : "~5.1.0",
-    "doctrine/doctrine-bundle": "^1.9",
+    "doctrine/doctrine-bundle": "^1.9 || ^2",
     "doctrine/orm": "^1 || ^2"
   },
   "require-dev": {
     "roave/security-advisories": "dev-master",
-    "symfony/security-bundle": "^4.1.9",
-    "symfony/yaml": "^4.1.9",
+    "symfony/security-bundle": "^4.1.9 || ^5",
+    "symfony/yaml": "^4.1.9 || ^5",
     "phpunit/phpunit": "^7.5.6",
-    "phpstan/phpstan": "^0.11.4"
+    "phpstan/phpstan-shim": "^0.11.4"
   },
   "scripts": {
     "phpstan": "phpstan analyse TdbmBundle.php DependencyInjection/ Resources/ -c phpstan.neon --level=7 --no-progress"