diff --git a/composer.lock b/composer.lock
index fee5500ce096e8a47e1b3ecf15668e0ad8de07de..e42d75b760ae127971d3ab43a65461f6bc105226 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4185,16 +4185,16 @@
         },
         {
             "name": "symfony/phpunit-bridge",
-            "version": "v3.4.0-BETA2",
+            "version": "v3.4.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/phpunit-bridge.git",
-                "reference": "9128796e0cc46f17973e7e9345eb34696aafe00b"
+                "reference": "24ffb71a115c25f5ee56cbfd38e56ed2cdbeb0a9"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/phpunit-bridge/zipball/9128796e0cc46f17973e7e9345eb34696aafe00b",
-                "reference": "9128796e0cc46f17973e7e9345eb34696aafe00b",
+                "url": "https://api.github.com/repos/symfony/phpunit-bridge/zipball/24ffb71a115c25f5ee56cbfd38e56ed2cdbeb0a9",
+                "reference": "24ffb71a115c25f5ee56cbfd38e56ed2cdbeb0a9",
                 "shasum": ""
             },
             "require": {
@@ -4214,6 +4214,10 @@
             "extra": {
                 "branch-alias": {
                     "dev-master": "3.4-dev"
+                },
+                "thanks": {
+                    "name": "phpunit/phpunit",
+                    "url": "https://github.com/sebastianbergmann/phpunit"
                 }
             },
             "autoload": {
@@ -4243,14 +4247,13 @@
             ],
             "description": "Symfony PHPUnit Bridge",
             "homepage": "https://symfony.com",
-            "time": "2017-10-28T16:49:05+00:00"
+            "time": "2018-01-04T17:19:23+00:00"
         }
     ],
     "aliases": [],
     "minimum-stability": "dev",
     "stability-flags": {
-        "behat/mink": 20,
-        "symfony/phpunit-bridge": 10
+        "behat/mink": 20
     },
     "prefer-stable": true,
     "prefer-lowest": false,
diff --git a/core/composer.json b/core/composer.json
index c4bb384b92a5426ca7631cfbd4094c6086d9e062..aeb15b4d4d8ab7c5cad122ae607a6a45809ed6dd 100644
--- a/core/composer.json
+++ b/core/composer.json
@@ -47,7 +47,7 @@
         "phpunit/phpunit": "^4.8.35 || ^6.1",
         "phpspec/prophecy": "^1.4",
         "symfony/css-selector": "~3.2.8",
-        "symfony/phpunit-bridge": "^3.4.0@beta"
+        "symfony/phpunit-bridge": "^3.4.3"
     },
     "replace": {
         "drupal/action": "self.version",