diff --git a/composer.json b/composer.json
index caa2392b3..a52d0628d 100644
--- a/composer.json
+++ b/composer.json
@@ -19,29 +19,15 @@
         }
     ],
     "require": {
-        "php": "~5.5|~7.0",
-        "symfony/symfony": "~2.8",
-        "doctrine/orm": "~2.4",
-        "doctrine/dbal" : "~2.5",
-        "doctrine/common": "~2.4",
-        "doctrine/doctrine-bundle": "~1.2",
-        "twig/extensions": "~1.0",
-        "symfony/assetic-bundle": "~2.3",
-        "symfony/swiftmailer-bundle": "~2.3",
-        "sensio/distribution-bundle": "~5.0",
-        "sensio/framework-extra-bundle": "~3.0",
-        "champs-libres/composer-bundle-migration": "~1.0",
-        "doctrine/doctrine-migrations-bundle": "~1.1",
-        "doctrine/migrations": "~1.0",
-        "symfony/monolog-bundle": "^2.7",
         "chill-project/main": "dev-upgrade-sf3@dev"
     },
     "require-dev": {
-        "chill-project/person": "dev-master@dev",
         "fzaninotto/faker": "~1",
         "doctrine/doctrine-fixtures-bundle": "~2.2",
         "phpunit/phpunit": "^6.2"
     },
+    "minimum-stability": "dev",
+    "prefer-stable": true,
     "scripts": {
         "post-install-cmd": [
             "ComposerBundleMigration\\Composer\\Migrations::synchronizeMigrations",