diff --git a/composer.lock b/composer.lock
index 832979f..8adc67d 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4199,6 +4199,61 @@
             "description": "Symfony DomCrawler Component",
             "homepage": "https://symfony.com",
             "time": "2015-10-11 09:39:48"
+        },
+        {
+            "name": "symfony/phpunit-bridge",
+            "version": "v3.1.5",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/phpunit-bridge.git",
+                "reference": "1f4e2059cf4ecae1053b9c3027b3fc548fd077b9"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/phpunit-bridge/zipball/1f4e2059cf4ecae1053b9c3027b3fc548fd077b9",
+                "reference": "1f4e2059cf4ecae1053b9c3027b3fc548fd077b9",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.3"
+            },
+            "suggest": {
+                "symfony/debug": "For tracking deprecated interfaces usages at runtime with DebugClassLoader"
+            },
+            "type": "symfony-bridge",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "3.1-dev"
+                }
+            },
+            "autoload": {
+                "files": [
+                    "bootstrap.php"
+                ],
+                "psr-4": {
+                    "Symfony\\Bridge\\PhpUnit\\": ""
+                },
+                "exclude-from-classmap": [
+                    "/Tests/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony PHPUnit Bridge",
+            "homepage": "https://symfony.com",
+            "time": "2016-08-19 06:48:39"
         }
     ],
     "aliases": [],
diff --git a/core/composer.json b/core/composer.json
index 53ab8fa..5d2432e 100644
--- a/core/composer.json
+++ b/core/composer.json
@@ -41,7 +41,8 @@
         "jcalderonzumba/mink-phantomjs-driver": "~0.3.1",
         "mikey179/vfsStream": "~1.2",
         "phpunit/phpunit": "~4.8",
-        "symfony/css-selector": "~2.8"
+        "symfony/css-selector": "~2.8",
+        "symfony/phpunit-bridge": "~3.1"
     },
     "replace": {
         "drupal/action": "self.version",