diff --git a/composer.json b/composer.json
index 1fcd5db..37b5185 100644
--- a/composer.json
+++ b/composer.json
@@ -19,7 +19,7 @@
     "require-dev": {
         "phpunit/phpunit":           "~5.7",
         "friendsofphp/php-cs-fixer": "@stable",
-        "symfony/http-foundation":   "^2.7",
+        "symfony/http-foundation":   "^2.7|^4.0",
         "sylius/resource":           "1.0.0-beta3",
         "doctrine/orm":              "^2.3",
         "gedmo/doctrine-extensions": "^2.4"