diff --git a/composer.json b/composer.json
index d8334e3..8d5a26f 100644
--- a/composer.json
+++ b/composer.json
@@ -40,7 +40,7 @@
         "symfony/framework-bundle": "^4.4 || ^5.0",
         "symfony/http-foundation": "^4.4 || ^5.1",
         "symfony/http-kernel": "^4.4 || ^5.1",
-        "symfony/phpunit-bridge": "^5.1",
+        "symfony/phpunit-bridge": "^5.1.1",
         "symfony/twig-bundle": "^4.4 || ^5.1"
     },
     "config": {
diff --git a/src/Bridge/Symfony/DependencyInjection/Configuration.php b/src/Bridge/Symfony/DependencyInjection/Configuration.php
index c47453c..c3b3548 100644
--- a/src/Bridge/Symfony/DependencyInjection/Configuration.php
+++ b/src/Bridge/Symfony/DependencyInjection/Configuration.php
@@ -13,6 +13,7 @@
 
 namespace Sonata\Twig\Bridge\Symfony\DependencyInjection;
 
+use Symfony\Component\Config\Definition\BaseNode;
 use Symfony\Component\Config\Definition\Builder\ArrayNodeDefinition;
 use Symfony\Component\Config\Definition\Builder\TreeBuilder;
 use Symfony\Component\Config\Definition\ConfigurationInterface;
@@ -63,7 +64,7 @@ private function addFlashMessageSection(ArrayNodeDefinition $node): void
                                     ->children()
                                         ->scalarNode('domain')
                                             ->defaultValue('SonataTwigBundle')
-                                            ->setDeprecated('The child node "%node%" at path "%path%" is deprecated since sonata-project/twig-extensions 1.4 and will be removed in 2.0 version. Translate you message before add it to session flash.')
+                                            ->setDeprecated(...$this->getDomainParamDeprecationMsg())
                                             ->end()
                                     ->end()
                                 ->end()
@@ -74,4 +75,20 @@ private function addFlashMessageSection(ArrayNodeDefinition $node): void
             ->end()
         ;
     }
+
+    // BC layer for deprecation messages for symfony/config < 5.1
+    private function getDomainParamDeprecationMsg(): array
+    {
+        $message = 'The child node "%node%" at path "%path%" is deprecated since sonata-project/twig-extensions 1.4 and will be removed in 2.0 version. Translate you message before add it to session flash.';
+
+        if (method_exists(BaseNode::class, 'getDeprecation')) {
+            return [
+                'sonata-project/twig-extensions',
+                '1.4',
+                $message,
+            ];
+        }
+
+        return [$message];
+    }
 }
diff --git a/tests/App/config.yml b/tests/App/config.yml
index fa703bb..560d11e 100644
--- a/tests/App/config.yml
+++ b/tests/App/config.yml
@@ -7,5 +7,7 @@ framework:
         name: 'MOCKSESSID'
 
 twig:
+    exception_controller: null
     paths:
         - '%kernel.project_dir%/templates'
+    strict_variables: '%kernel.debug%'