diff --git a/composer.json b/composer.json
index 0e15d36b..ed8f29e5 100644
--- a/composer.json
+++ b/composer.json
@@ -36,7 +36,6 @@
     },
     "require-dev": {
         "sensio/generator-bundle": "~2.3",
-        "liip/rmt": "1.1.*",
         "matthiasnoback/symfony-config-test": "^1.2",
         "mockery/mockery": "^0.9.5",
         "phpmd/phpmd": "^2.0",
diff --git a/composer.lock b/composer.lock
index 2762c629..e406e2e9 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "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": "6430f5ef57cda9f51ebef7dd3658aeef",
+    "content-hash": "5fdbb5035000e4cae20883bfafddff76",
     "packages": [
         {
             "name": "beberlei/assert",
@@ -3178,65 +3178,6 @@
             ],
             "time": "2015-05-11T14:41:42+00:00"
         },
-        {
-            "name": "liip/rmt",
-            "version": "1.1.9",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/liip/RMT.git",
-                "reference": "81ecd50b0910a2e6a052e2d34f187922626c4e07"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/liip/RMT/zipball/81ecd50b0910a2e6a052e2d34f187922626c4e07",
-                "reference": "81ecd50b0910a2e6a052e2d34f187922626c4e07",
-                "shasum": ""
-            },
-            "require": {
-                "php": ">=5.3.3",
-                "sensiolabs/security-checker": "~2.0",
-                "symfony/console": "~2.0",
-                "symfony/process": "~2.0",
-                "symfony/yaml": "~2.0",
-                "vierbergenlars/php-semver": "~3.0"
-            },
-            "bin": [
-                "RMT"
-            ],
-            "type": "library",
-            "autoload": {
-                "psr-0": {
-                    "Liip": "src"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Laurent Prodon",
-                    "email": "laurent.prodon@liip.ch",
-                    "role": "Developer"
-                },
-                {
-                    "name": "David Jeanmonod",
-                    "email": "david.jeanmonod@liip.ch",
-                    "role": "Developer"
-                }
-            ],
-            "description": "Release Managment Tool: a handy tool to help releasing new version of your software",
-            "homepage": "http://github.com/liip/RMT",
-            "keywords": [
-                "post-release",
-                "pre-release",
-                "release",
-                "semantic versioning",
-                "vcs tag",
-                "version"
-            ],
-            "time": "2015-05-06T20:11:13+00:00"
-        },
         {
             "name": "matthiasnoback/symfony-config-test",
             "version": "v1.4.0",
@@ -4665,58 +4606,6 @@
             "description": "The classes contained within this repository extend the standard DOM to use exceptions at all occasions of errors instead of PHP warnings or notices. They also add various custom methods and shortcuts for convenience and to simplify the usage of DOM.",
             "homepage": "https://github.com/theseer/fDOMDocument",
             "time": "2015-05-27T22:58:02+00:00"
-        },
-        {
-            "name": "vierbergenlars/php-semver",
-            "version": "3.0.1",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/vierbergenlars/php-semver.git",
-                "reference": "516bb3061577e60e9420cbecc479362d3ad8c7f1"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/vierbergenlars/php-semver/zipball/516bb3061577e60e9420cbecc479362d3ad8c7f1",
-                "reference": "516bb3061577e60e9420cbecc479362d3ad8c7f1",
-                "shasum": ""
-            },
-            "require": {
-                "php": ">=5.3.0"
-            },
-            "require-dev": {
-                "simpletest/simpletest": "1.1.*"
-            },
-            "bin": [
-                "bin/semver",
-                "bin/update-versions"
-            ],
-            "type": "library",
-            "autoload": {
-                "psr-0": {
-                    "vierbergenlars\\SemVer\\": "src/",
-                    "vierbergenlars\\LibJs\\": "src/"
-                },
-                "classmap": [
-                    "src/vierbergenlars/SemVer/internal.php"
-                ]
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Lars Vierbergen",
-                    "email": "vierbergenlars@gmail.com"
-                }
-            ],
-            "description": "The Semantic Versioner for PHP",
-            "keywords": [
-                "semantic",
-                "semver",
-                "versioning"
-            ],
-            "time": "2015-05-02T19:28:54+00:00"
         }
     ],
     "aliases": [],