diff --git a/composer.json b/composer.json
index 07d926d..4a49967 100644
--- a/composer.json
+++ b/composer.json
@@ -41,7 +41,7 @@
     "require-dev": {
         "ext-pdo_sqlite": "*",
         "composer/semver": "^3.2",
-        "doctrine/dbal": "^3.8|^4.0",
+        "doctrine/dbal": "^3.8|^4.2",
         "doctrine/doctrine-bundle": "^2.11",
         "doctrine/orm": "^2.20|^3.0",
         "phpstan/phpstan": "^1.10",
@@ -56,8 +56,12 @@
         "symfony/phpunit-bridge": "^5.4.40|^6.4|^7.0",
         "symfony/translation": "^5.4.40|^6.4|^7.0",
         "symfony/var-dumper": "^5.4.40|^6.4|^7.0",
+        "symfony/var-exporter": "^5.4.40|^6.4|^7.0",
         "symfony/yaml": "^5.4.40|^6.4|^7.0"
     },
+    "conflict": {
+        "doctrine/dbal": ">=4.0,<4.2"
+    },
     "extra": {
         "branch-alias": {
             "dev-2.x": "2.x-dev"
diff --git a/tests/Fixtures/Integration/Symfony/config/config-64+.yaml b/tests/Fixtures/Integration/Symfony/config/config-64+.yaml
index 71d6bc4..b6e1d83 100644
--- a/tests/Fixtures/Integration/Symfony/config/config-64+.yaml
+++ b/tests/Fixtures/Integration/Symfony/config/config-64+.yaml
@@ -5,3 +5,7 @@ framework:
   handle_all_throwables: true
   php_errors:
     log: true
+
+doctrine:
+  orm:
+    enable_lazy_ghost_objects: true
diff --git a/tests/Fixtures/Integration/Symfony/config/config.yaml b/tests/Fixtures/Integration/Symfony/config/config.yaml
index 89dc35d..f676242 100644
--- a/tests/Fixtures/Integration/Symfony/config/config.yaml
+++ b/tests/Fixtures/Integration/Symfony/config/config.yaml
@@ -18,7 +18,6 @@ doctrine:
   orm:
     auto_generate_proxy_classes: '%kernel.debug%'
     report_fields_where_declared: true
-    enable_lazy_ghost_objects: true
     controller_resolver:
       auto_mapping: false