diff --git a/composer.json b/composer.json
index 51aa6c21..270c6394 100644
--- a/composer.json
+++ b/composer.json
@@ -21,7 +21,7 @@
         "psr/log": "^1.0"
     },
     "require-dev": {
-        "symfony/phpunit-bridge": "^3.3 || ^4.0",
+        "symfony/phpunit-bridge": "^4.2",
         "symfony/dependency-injection": "^2.8 || ^3.3 || ^4.0",
         "symfony/config": "^2.8 || ^3.3 || ^4.0",
         "symfony/event-dispatcher": "^2.8 || ^3.3 || ^4.0",