diff --git a/composer.lock b/composer.lock
index 8694dc4cbe..1b99f81c23 100644
--- a/composer.lock
+++ b/composer.lock
@@ -2926,16 +2926,16 @@
         },
         {
             "name": "jcalderonzumba/gastonjs",
-            "version": "v1.0.2",
+            "version": "v1.2.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/jcalderonzumba/gastonjs.git",
-                "reference": "21bebb8ca03eb0f93ec2f3fad61192fb079e2622"
+                "reference": "575a9c18d8b87990c37252e8d9707b29f0a313f3"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/jcalderonzumba/gastonjs/zipball/21bebb8ca03eb0f93ec2f3fad61192fb079e2622",
-                "reference": "21bebb8ca03eb0f93ec2f3fad61192fb079e2622",
+                "url": "https://api.github.com/repos/jcalderonzumba/gastonjs/zipball/575a9c18d8b87990c37252e8d9707b29f0a313f3",
+                "reference": "575a9c18d8b87990c37252e8d9707b29f0a313f3",
                 "shasum": ""
             },
             "require": {
@@ -2979,34 +2979,31 @@
                 "headless",
                 "phantomjs"
             ],
-            "time": "2016-01-18T09:21:03+00:00"
+            "time": "2017-03-31T07:31:47+00:00"
         },
         {
             "name": "jcalderonzumba/mink-phantomjs-driver",
-            "version": "v0.3.1",
+            "version": "v0.3.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/jcalderonzumba/MinkPhantomJSDriver.git",
-                "reference": "782892dbea4af7d04024374672b3790b6c008def"
+                "reference": "008f43670e94acd39273d15add1e7348eb23848d"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/jcalderonzumba/MinkPhantomJSDriver/zipball/782892dbea4af7d04024374672b3790b6c008def",
-                "reference": "782892dbea4af7d04024374672b3790b6c008def",
+                "url": "https://api.github.com/repos/jcalderonzumba/MinkPhantomJSDriver/zipball/008f43670e94acd39273d15add1e7348eb23848d",
+                "reference": "008f43670e94acd39273d15add1e7348eb23848d",
                 "shasum": ""
             },
             "require": {
-                "behat/mink": "~1.6",
+                "behat/mink": "~1.7",
                 "jcalderonzumba/gastonjs": "~1.0",
                 "php": ">=5.4",
                 "twig/twig": "~1.20|~2.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "~4.6",
-                "silex/silex": "~1.2",
-                "symfony/css-selector": "~2.1",
-                "symfony/phpunit-bridge": "~2.7",
-                "symfony/process": "~2.3"
+                "mink/driver-testsuite": "dev-master",
+                "phpunit/phpunit": "~4.6"
             },
             "type": "mink-driver",
             "extra": {
@@ -3040,7 +3037,7 @@
                 "phantomjs",
                 "testing"
             ],
-            "time": "2015-12-04T13:55:02+00:00"
+            "time": "2016-12-01T10:57:30+00:00"
         },
         {
             "name": "mikey179/vfsStream",
diff --git a/core/composer.json b/core/composer.json
index 48e6619880..d4b97f83d0 100644
--- a/core/composer.json
+++ b/core/composer.json
@@ -41,8 +41,8 @@
         "behat/mink": "1.7.x-dev",
         "behat/mink-goutte-driver": "^1.2",
         "drupal/coder": "^8.2.12",
-        "jcalderonzumba/gastonjs": "^1.0.2",
-        "jcalderonzumba/mink-phantomjs-driver": "^0.3.1",
+        "jcalderonzumba/gastonjs": "^1.2.0",
+        "jcalderonzumba/mink-phantomjs-driver": "^0.3.3",
         "mikey179/vfsStream": "^1.2",
         "phpunit/phpunit": ">=4.8.35 <5",
         "phpspec/prophecy": "^1.4",