diff --git a/src/Symfony/Component/Validator/composer.json b/src/Symfony/Component/Validator/composer.json
index 88a29241f57c7..a25a791865d30 100644
--- a/src/Symfony/Component/Validator/composer.json
+++ b/src/Symfony/Component/Validator/composer.json
@@ -19,7 +19,8 @@
         "php": "^7.1.3",
         "symfony/contracts": "^1.0.2",
         "symfony/polyfill-ctype": "~1.8",
-        "symfony/polyfill-mbstring": "~1.0"
+        "symfony/polyfill-mbstring": "~1.0",
+        "symfony/translation": "~4.2"
     },
     "require-dev": {
         "symfony/http-foundation": "~4.1",
@@ -32,7 +33,6 @@
         "symfony/expression-language": "~3.4|~4.0",
         "symfony/cache": "~3.4|~4.0",
         "symfony/property-access": "~3.4|~4.0",
-        "symfony/translation": "~4.2",
         "doctrine/annotations": "~1.0",
         "doctrine/cache": "~1.0",
         "egulias/email-validator": "^1.2.8|~2.0"