diff --git a/composer.json b/composer.json
index 77d880e..83fa2b9 100644
--- a/composer.json
+++ b/composer.json
@@ -4,19 +4,19 @@
     "keywords": ["whois"],
     "license": "MIT",
     "require": {
-        "php": ">=5.3.2",
+        "php": ">=5.4",
         "react/curry": "1.0.*",
-        "react/promise": "~1.0",
-        "react/dns": "0.3.*",
-        "react/socket": "0.3.*",
-        "react/stream": "0.3.*"
+        "react/promise": "~2.0",
+        "react/dns": "0.4.*",
+        "react/socket": "0.4.*",
+        "react/stream": "0.4.*"
     },
     "autoload": {
         "psr-0": { "React\\Whois": "src" }
     },
     "extra": {
         "branch-alias": {
-            "dev-master": "0.2-dev"
+            "dev-master": "0.3-dev"
         }
     }
 }
diff --git a/composer.lock b/composer.lock
index 26f1dec..9a7695a 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1,33 +1,40 @@
 {
     "_readme": [
         "This file locks the dependencies of your project to a known state",
-        "Read more about it at http://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file"
+        "Read more about it at http://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
+        "This file is @generated automatically"
     ],
-    "hash": "a4045d046828b5afc6faa0cb61e15673",
+    "hash": "3b3e1530ac45c7174f2d245bf2a3815f",
     "packages": [
         {
             "name": "evenement/evenement",
-            "version": "v1.0.0",
+            "version": "v2.0.0",
             "source": {
                 "type": "git",
-                "url": "https://github.com/igorw/evenement",
-                "reference": "v1.0.0"
+                "url": "https://github.com/igorw/evenement.git",
+                "reference": "f6e843799fd4f4184d54d8fc7b5b3551c9fa803e"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://github.com/igorw/evenement/zipball/v1.0.0",
-                "reference": "v1.0.0",
+                "url": "https://api.github.com/repos/igorw/evenement/zipball/f6e843799fd4f4184d54d8fc7b5b3551c9fa803e",
+                "reference": "f6e843799fd4f4184d54d8fc7b5b3551c9fa803e",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.0"
+                "php": ">=5.4.0"
             },
             "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "2.0-dev"
+                }
+            },
             "autoload": {
                 "psr-0": {
                     "Evenement": "src"
                 }
             },
+            "notification-url": "https://packagist.org/downloads/",
             "license": [
                 "MIT"
             ],
@@ -38,40 +45,40 @@
                     "homepage": "http://wiedler.ch/igor/"
                 }
             ],
-            "description": "Événement is a very simple event dispatching library for PHP 5.3",
+            "description": "Événement is a very simple event dispatching library for PHP",
             "keywords": [
-                "event-dispatcher"
+                "event-dispatcher",
+                "event-emitter"
             ],
-            "time": "2012-05-30 08:01:08"
+            "time": "2012-11-02 14:49:47"
         },
         {
             "name": "react/cache",
-            "version": "v0.3.2",
-            "target-dir": "React/Cache",
+            "version": "v0.4.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/reactphp/cache.git",
-                "reference": "v0.3.2"
+                "reference": "9882ab5d8b00617baae83c6996f5a34668c11beb"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/reactphp/cache/zipball/v0.3.2",
-                "reference": "v0.3.2",
+                "url": "https://api.github.com/repos/reactphp/cache/zipball/9882ab5d8b00617baae83c6996f5a34668c11beb",
+                "reference": "9882ab5d8b00617baae83c6996f5a34668c11beb",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.2",
-                "react/promise": ">=1.0,<2.0"
+                "php": ">=5.4.0",
+                "react/promise": "~2.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "0.3-dev"
+                    "dev-master": "0.4-dev"
                 }
             },
             "autoload": {
-                "psr-0": {
-                    "React\\Cache": ""
+                "psr-4": {
+                    "React\\Cache\\": ""
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -82,7 +89,7 @@
             "keywords": [
                 "cache"
             ],
-            "time": "2013-04-24 08:33:43"
+            "time": "2014-02-02 01:11:26"
         },
         {
             "name": "react/curry",
@@ -125,34 +132,33 @@
         },
         {
             "name": "react/dns",
-            "version": "v0.3.2",
-            "target-dir": "React/Dns",
+            "version": "v0.4.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/reactphp/dns.git",
-                "reference": "v0.3.2"
+                "reference": "8c5ccc35dcb4b06b70eb9201842363fac7b0f3cf"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/reactphp/dns/zipball/v0.3.2",
-                "reference": "v0.3.2",
+                "url": "https://api.github.com/repos/reactphp/dns/zipball/8c5ccc35dcb4b06b70eb9201842363fac7b0f3cf",
+                "reference": "8c5ccc35dcb4b06b70eb9201842363fac7b0f3cf",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.2",
-                "react/cache": "0.3.*",
-                "react/promise": ">=1.0,<2.0",
-                "react/socket": "0.3.*"
+                "php": ">=5.4.0",
+                "react/cache": "0.4.*",
+                "react/promise": "~2.0",
+                "react/socket": "0.4.*"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "0.3-dev"
+                    "dev-master": "0.4-dev"
                 }
             },
             "autoload": {
-                "psr-0": {
-                    "React\\Dns": ""
+                "psr-4": {
+                    "React\\Dns\\": ""
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -164,39 +170,39 @@
                 "dns",
                 "dns-resolver"
             ],
-            "time": "2013-04-27 08:57:30"
+            "time": "2014-04-12 14:09:10"
         },
         {
             "name": "react/event-loop",
-            "version": "v0.3.3",
-            "target-dir": "React/EventLoop",
+            "version": "v0.4.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/reactphp/event-loop.git",
-                "reference": "v0.3.3"
+                "reference": "18c5297087ca01de85518e2b55078f444144aa1b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/reactphp/event-loop/zipball/v0.3.3",
-                "reference": "v0.3.3",
+                "url": "https://api.github.com/repos/reactphp/event-loop/zipball/18c5297087ca01de85518e2b55078f444144aa1b",
+                "reference": "18c5297087ca01de85518e2b55078f444144aa1b",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.3"
+                "php": ">=5.4.0"
             },
             "suggest": {
+                "ext-event": "~1.0",
                 "ext-libev": "*",
-                "ext-libevent": ">=0.0.5"
+                "ext-libevent": ">=0.1.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "0.3-dev"
+                    "dev-master": "0.4-dev"
                 }
             },
             "autoload": {
-                "psr-0": {
-                    "React\\EventLoop": ""
+                "psr-4": {
+                    "React\\EventLoop\\": ""
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -207,35 +213,38 @@
             "keywords": [
                 "event-loop"
             ],
-            "time": "2013-07-08 22:38:22"
+            "time": "2014-02-26 17:36:58"
         },
         {
             "name": "react/promise",
-            "version": "v1.0.4",
+            "version": "v2.1.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/reactphp/promise.git",
-                "reference": "v1.0.4"
+                "reference": "937b04f1b0ee8f6d180e75a0830aac778ca4bcd6"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/reactphp/promise/zipball/v1.0.4",
-                "reference": "v1.0.4",
+                "url": "https://api.github.com/repos/reactphp/promise/zipball/937b04f1b0ee8f6d180e75a0830aac778ca4bcd6",
+                "reference": "937b04f1b0ee8f6d180e75a0830aac778ca4bcd6",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.3"
+                "php": ">=5.4.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.0-dev"
+                    "dev-master": "2.0-dev"
                 }
             },
             "autoload": {
-                "psr-0": {
-                    "React\\Promise": "src/"
-                }
+                "psr-4": {
+                    "React\\Promise\\": "src/"
+                },
+                "files": [
+                    "src/functions.php"
+                ]
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
@@ -244,44 +253,41 @@
             "authors": [
                 {
                     "name": "Jan Sorgalla",
-                    "email": "jsorgalla@googlemail.com",
-                    "homepage": "http://sorgalla.com",
-                    "role": "maintainer"
+                    "email": "jsorgalla@googlemail.com"
                 }
             ],
             "description": "A lightweight implementation of CommonJS Promises/A for PHP",
-            "time": "2013-04-03 14:05:55"
+            "time": "2014-10-15 20:05:57"
         },
         {
             "name": "react/socket",
-            "version": "v0.3.2",
-            "target-dir": "React/Socket",
+            "version": "v0.4.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/reactphp/socket.git",
-                "reference": "v0.3.2"
+                "reference": "a6acf405ca53fc6cfbfe7c77778ededff46aa7cc"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/reactphp/socket/zipball/v0.3.2",
-                "reference": "v0.3.2",
+                "url": "https://api.github.com/repos/reactphp/socket/zipball/a6acf405ca53fc6cfbfe7c77778ededff46aa7cc",
+                "reference": "a6acf405ca53fc6cfbfe7c77778ededff46aa7cc",
                 "shasum": ""
             },
             "require": {
-                "evenement/evenement": "1.0.*",
-                "php": ">=5.3.3",
-                "react/event-loop": "0.3.*",
-                "react/stream": "0.3.*"
+                "evenement/evenement": "~2.0",
+                "php": ">=5.4.0",
+                "react/event-loop": "0.4.*",
+                "react/stream": "0.4.*"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "0.3-dev"
+                    "dev-master": "0.4-dev"
                 }
             },
             "autoload": {
-                "psr-0": {
-                    "React\\Socket": ""
+                "psr-4": {
+                    "React\\Socket\\": "src"
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -292,40 +298,43 @@
             "keywords": [
                 "Socket"
             ],
-            "time": "2013-04-26 20:23:10"
+            "time": "2014-05-25 17:02:16"
         },
         {
             "name": "react/stream",
-            "version": "v0.3.3",
-            "target-dir": "React/Stream",
+            "version": "v0.4.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/reactphp/stream.git",
-                "reference": "v0.3.3"
+                "reference": "acc7a5fec02e0aea674560e1d13c40ed0c8c5465"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/reactphp/stream/zipball/v0.3.3",
-                "reference": "v0.3.3",
+                "url": "https://api.github.com/repos/reactphp/stream/zipball/acc7a5fec02e0aea674560e1d13c40ed0c8c5465",
+                "reference": "acc7a5fec02e0aea674560e1d13c40ed0c8c5465",
                 "shasum": ""
             },
             "require": {
-                "evenement/evenement": "1.0.*",
-                "php": ">=5.3.3"
+                "evenement/evenement": "~2.0",
+                "php": ">=5.4.0"
+            },
+            "require-dev": {
+                "react/event-loop": "0.4.*",
+                "react/promise": "~2.0"
             },
             "suggest": {
-                "react/event-loop": "0.3.*",
-                "react/promise": "~1.0"
+                "react/event-loop": "0.4.*",
+                "react/promise": "~2.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "0.3-dev"
+                    "dev-master": "0.5-dev"
                 }
             },
             "autoload": {
-                "psr-0": {
-                    "React\\Stream": ""
+                "psr-4": {
+                    "React\\Stream\\": "src"
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -337,23 +346,16 @@
                 "pipe",
                 "stream"
             ],
-            "time": "2013-07-09 00:44:12"
+            "time": "2014-09-10 03:32:31"
         }
     ],
-    "packages-dev": [
-
-    ],
-    "aliases": [
-
-    ],
+    "packages-dev": [],
+    "aliases": [],
     "minimum-stability": "stable",
-    "stability-flags": [
-
-    ],
+    "stability-flags": [],
+    "prefer-stable": false,
     "platform": {
-        "php": ">=5.3.2"
+        "php": ">=5.4"
     },
-    "platform-dev": [
-
-    ]
+    "platform-dev": []
 }