update deps

composer.json

@@ -32,7 +32,7 @@
         "doctrine/orm": "^2.5",
         "fp/klarna-invoice": "^0.1",
         "incenteev/composer-parameter-handler": "~2.0",
-        "klarna/checkout": "^2",
+        "klarna/checkout": "^4",
         "jms/payment-paypal-bundle": "^1",
         "omnipay/stripe": "^2",
         "omnipay/paypal": "^2",
@@ -42,12 +42,12 @@
         "payum/payum": "^1.3",
         "payum/jms-payment-bridge": "^1",
         "php-http/guzzle6-adapter": "^1",
-        "phpxmlrpc/phpxmlrpc": "^3",
+        "phpxmlrpc/phpxmlrpc": "^4",
         "sensio/distribution-bundle": "~5.0",
         "sensio/framework-extra-bundle": "^3.0.2",
         "sofort/sofortlib-php": "^3",
-        "sonata-project/doctrine-orm-admin-bundle": "^2.3",
-        "stripe/stripe-php": "^2",
+        "sonata-project/doctrine-orm-admin-bundle": "^3",
+        "stripe/stripe-php": "^3",
         "symfony/assetic-bundle": "^2.3",
         "symfony/monolog-bundle": "~2.4",
         "symfony/symfony": "^2.8",