diff --git a/src/Behat/MinkExtension/ServiceContainer/Driver/BrowserStackFactory.php b/src/Behat/MinkExtension/ServiceContainer/Driver/BrowserStackFactory.php
index 6188e64..d63541e 100644
--- a/src/Behat/MinkExtension/ServiceContainer/Driver/BrowserStackFactory.php
+++ b/src/Behat/MinkExtension/ServiceContainer/Driver/BrowserStackFactory.php
@@ -53,7 +53,6 @@ class BrowserStackFactory extends Selenium2Factory
 
         $node
             ->children()
-                ->scalarNode('name')->defaultValue('Behat feature suite')->end()
                 ->scalarNode('project')->end()
                 ->scalarNode('resolution')->end()
                 ->scalarNode('build')->info('will be set automatically based on the TRAVIS_JOB_NUMBER environment variable if available')->end()
diff --git a/src/Behat/MinkExtension/ServiceContainer/Driver/SauceLabsFactory.php b/src/Behat/MinkExtension/ServiceContainer/Driver/SauceLabsFactory.php
index 98d6a57..8539199 100644
--- a/src/Behat/MinkExtension/ServiceContainer/Driver/SauceLabsFactory.php
+++ b/src/Behat/MinkExtension/ServiceContainer/Driver/SauceLabsFactory.php
@@ -59,10 +59,9 @@ class SauceLabsFactory extends Selenium2Factory
 
         $node
             ->children()
-                ->scalarNode('name')->defaultValue('Behat feature suite')->end()
                 ->scalarNode('platform')->defaultValue('Linux')->end()
-                ->scalarNode('selenium-version')->defaultValue('2.31.0')->end()
-                ->scalarNode('max-duration')->defaultValue('300')->end()
+                ->scalarNode('selenium-version')->end()
+                ->scalarNode('max-duration')->end()
                 ->scalarNode('command-timeout')->end()
                 ->scalarNode('idle-timeout')->end()
                 ->scalarNode('build')->info('will be set automatically based on the TRAVIS_BUILD_NUMBER environment variable if available')->end()
diff --git a/src/Behat/MinkExtension/ServiceContainer/Driver/Selenium2Factory.php b/src/Behat/MinkExtension/ServiceContainer/Driver/Selenium2Factory.php
index cf32576..55d7fcc 100644
--- a/src/Behat/MinkExtension/ServiceContainer/Driver/Selenium2Factory.php
+++ b/src/Behat/MinkExtension/ServiceContainer/Driver/Selenium2Factory.php
@@ -93,15 +93,15 @@ class Selenium2Factory implements DriverFactory
             ->addDefaultsIfNotSet()
             ->normalizeKeys(false)
             ->children()
-                ->scalarNode('browserName')->defaultValue('firefox')->end()
-                ->scalarNode('version')->defaultValue('21')->end()
-                ->scalarNode('platform')->defaultValue('ANY')->end()
-                ->scalarNode('browserVersion')->defaultValue('9')->end()
+                ->scalarNode('browserName')->end()
+                ->scalarNode('version')->end()
+                ->scalarNode('platform')->end()
+                ->scalarNode('browserVersion')->end()
                 ->scalarNode('browser')->defaultValue('firefox')->end()
                 ->scalarNode('ignoreZoomSetting')->defaultValue('false')->end()
                 ->scalarNode('name')->defaultValue('Behat feature suite')->end()
-                ->scalarNode('deviceOrientation')->defaultValue('portrait')->end()
-                ->scalarNode('deviceType')->defaultValue('tablet')->end()
+                ->scalarNode('deviceOrientation')->end()
+                ->scalarNode('deviceType')->end()
                 ->booleanNode('javascriptEnabled')->end()
                 ->booleanNode('databaseEnabled')->end()
                 ->booleanNode('locationContextEnabled')->end()