diff --git a/src/Symfony/Bridge/Doctrine/composer.json b/src/Symfony/Bridge/Doctrine/composer.json
index 819af85220..265994893d 100644
--- a/src/Symfony/Bridge/Doctrine/composer.json
+++ b/src/Symfony/Bridge/Doctrine/composer.json
@@ -25,6 +25,7 @@
     },
     "require-dev": {
         "symfony/stopwatch": "~3.4|~4.0",
+        "symfony/config": "^4.2",
         "symfony/dependency-injection": "~3.4|~4.0",
         "symfony/form": "~4.3",
         "symfony/http-kernel": "~3.4|~4.0",