diff --git a/.travis.yml b/.travis.yml
index 7bbfb3f..192973f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,7 +6,7 @@ php:
   - 7.1
 
 install:
-  - composer install
+  - composer update
   - composer require satooshi/php-coveralls --dev
 
 script:
diff --git a/composer.json b/composer.json
index 75ff783..5817867 100644
--- a/composer.json
+++ b/composer.json
@@ -17,8 +17,7 @@
         "symfony/finder": "^2.7|^3.0",
         "symfony/process": "^2.7|^3.0",
         "symfony/var-dumper": "^2.7|^3.0",
-        "spatie/array-to-xml": "~2.3.0",
-        "doctrine/inflector": "1.1.*"
+        "spatie/array-to-xml": "^2.2"
     },
     "require-dev": {
         "phpunit/phpunit": "^5.0",
diff --git a/composer.lock b/composer.lock
index fd75e83..0f1423d 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,37 +4,37 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "content-hash": "c8821bf0d84af8202c3afac8fddb4dbf",
+    "content-hash": "66b7c748d1f1d49c887a228325523c5e",
     "packages": [
         {
             "name": "doctrine/inflector",
-            "version": "v1.1.0",
+            "version": "v1.2.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/doctrine/inflector.git",
-                "reference": "90b2128806bfde671b6952ab8bea493942c1fdae"
+                "reference": "e11d84c6e018beedd929cff5220969a3c6d1d462"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/doctrine/inflector/zipball/90b2128806bfde671b6952ab8bea493942c1fdae",
-                "reference": "90b2128806bfde671b6952ab8bea493942c1fdae",
+                "url": "https://api.github.com/repos/doctrine/inflector/zipball/e11d84c6e018beedd929cff5220969a3c6d1d462",
+                "reference": "e11d84c6e018beedd929cff5220969a3c6d1d462",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.2"
+                "php": "^7.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "4.*"
+                "phpunit/phpunit": "^6.2"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.1.x-dev"
+                    "dev-master": "1.2.x-dev"
                 }
             },
             "autoload": {
-                "psr-0": {
-                    "Doctrine\\Common\\Inflector\\": "lib/"
+                "psr-4": {
+                    "Doctrine\\Common\\Inflector\\": "lib/Doctrine/Common/Inflector"
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -71,7 +71,7 @@
                 "singularize",
                 "string"
             ],
-            "time": "2015-11-06T14:35:42+00:00"
+            "time": "2017-07-22T12:18:28+00:00"
         },
         {
             "name": "illuminate/contracts",
@@ -275,24 +275,25 @@
         },
         {
             "name": "spatie/array-to-xml",
-            "version": "2.3.0",
+            "version": "2.5.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/spatie/array-to-xml.git",
-                "reference": "48a71d57980a40a1f84d741df563a594272feae9"
+                "reference": "ceff2641c6f700926bee759647811877f626e994"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/spatie/array-to-xml/zipball/48a71d57980a40a1f84d741df563a594272feae9",
-                "reference": "48a71d57980a40a1f84d741df563a594272feae9",
+                "url": "https://api.github.com/repos/spatie/array-to-xml/zipball/ceff2641c6f700926bee759647811877f626e994",
+                "reference": "ceff2641c6f700926bee759647811877f626e994",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.4|^7.0"
+                "php": "^7.0"
             },
             "require-dev": {
                 "mockery/mockery": "0.9.*",
-                "phpunit/phpunit": "4.*"
+                "phpunit/phpunit": "^5.7",
+                "spatie/phpunit-snapshot-assertions": "^0.4.1"
             },
             "type": "library",
             "autoload": {
@@ -319,7 +320,7 @@
                 "convert",
                 "xml"
             ],
-            "time": "2017-02-18T10:05:46+00:00"
+            "time": "2017-08-03T09:23:45+00:00"
         },
         {
             "name": "symfony/filesystem",