diff --git a/composer.json b/composer.json
index 9192334c4..98fa4ccbc 100644
--- a/composer.json
+++ b/composer.json
@@ -26,6 +26,7 @@
   },
   "require-dev": {
     "phpunit/phpunit": "4.8.*",
+    "phpunit/php-timer": "1.0.9",
     "phpunit/dbunit": "~1.3",
     "phpunit/phpunit-story": "~1.0",
     "phpunit/phpunit-selenium": "~1.4",