diff --git a/composer.json b/composer.json
index 5d5be45..d32ac70 100644
--- a/composer.json
+++ b/composer.json
@@ -22,7 +22,7 @@
         "php": ">=5.3.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "4.0.*",
+        "phpunit/phpunit": "4.1.*",
         "phpunit/phpunit-selenium": "dev-master",
         "ext-xdebug": "*",
         "mikey179/vfsStream": "1.3.*@dev",