Use version 5.0.0

composer.json

@@ -32,7 +32,7 @@
         "satooshi/php-coveralls": "^2.0",
         "php-coveralls/php-coveralls": "^2.1",
         "doctrine/dbal": "^2.5",
-        "phpunit/phpcov": "^5.0"
+        "phpunit/phpcov": "5.0.0"
     },
     "autoload": {
         "psr-0": {