diff --git a/composer.json b/composer.json
index 2e87a7f17..70f5fc99c 100644
--- a/composer.json
+++ b/composer.json
@@ -88,7 +88,7 @@
         "doctrine/doctrine-fixtures-bundle": "~2.2",
         "doctrine/data-fixtures": "~1.1.1",
         "sensio/generator-bundle": "^3.0",
-        "phpunit/phpunit": "~5.0",
+        "phpunit/phpunit": "~4.0",
         "symfony/phpunit-bridge": "^3.0",
         "friendsofphp/php-cs-fixer": "~1.9",
         "m6web/redis-mock": "^2.0"