diff --git a/.travis.yml b/.travis.yml
index 200f3d6f..6519c955 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,24 +10,14 @@ matrix:
     include:
         - php: 5.5
           env: COMPOSER_VERSION=""
-        - php: 5.5
-          env: COMPOSER_VERSION="1.2.x-dev"
         - php: 5.6
           env: COMPOSER_VERSION=""
-        - php: 5.6
-          env: COMPOSER_VERSION="1.2.x-dev"
         - php: 7.0
           env: COMPOSER_VERSION=""
-        - php: 7.0
-          env: COMPOSER_VERSION="1.2.x-dev"
         - php: hhvm
           env: COMPOSER_VERSION=""
-        - php: hhvm
-          env: COMPOSER_VERSION="1.2.x-dev"
         - php: nightly
           env: COMPOSER_VERSION=""
-        - php: nightly
-          env: COMPOSER_VERSION="1.2.x-dev"
 
     allow_failures:
         - php: nightly
diff --git a/Tests/Fixtures/Repository/Vcs/MockVcsDriver.php b/Tests/Fixtures/Repository/Vcs/MockVcsDriver.php
index 5f15dd94..1b366c59 100644
--- a/Tests/Fixtures/Repository/Vcs/MockVcsDriver.php
+++ b/Tests/Fixtures/Repository/Vcs/MockVcsDriver.php
@@ -127,4 +127,19 @@ protected function getContents()
     {
         return $this->contents;
     }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getFileContent($file, $identifier)
+    {
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getChangeDate($identifier)
+    {
+        return new \DateTime();
+    }
 }
diff --git a/Tests/Util/PerforceTest.php b/Tests/Util/PerforceTest.php
index 74f796e6..34b4deb1 100644
--- a/Tests/Util/PerforceTest.php
+++ b/Tests/Util/PerforceTest.php
@@ -241,7 +241,7 @@ function ($command, &$output) {
 
         $result = $this->perforce->getComposerInformation('//depot/branch@0.0.1');
 
-        $this->assertSame('', $result);
+        $this->assertNull($result);
     }
 
     public function testGetComposerInformationWithLabelWithStreamWithNoChange()
@@ -263,7 +263,7 @@ function ($command, &$output) {
 
         $result = $this->perforce->getComposerInformation('//depot/branch@0.0.1');
 
-        $this->assertSame('', $result);
+        $this->assertNull($result);
     }
 
     public function testCheckServerExists()
diff --git a/Util/Perforce.php b/Util/Perforce.php
index b60486f6..3d5b8bd8 100644
--- a/Util/Perforce.php
+++ b/Util/Perforce.php
@@ -44,45 +44,11 @@ public function initialize($repoConfig)
      */
     public function getComposerInformation($identifier)
     {
-        $index = strpos($identifier, '@');
+        $composerFileContent = $this->getFileContent($this->filename, $identifier);
 
-        if ($index === false) {
-            $composerJson = $identifier.'/'.$this->filename;
-
-            return $this->getComposerInformationFromPath($composerJson);
-        }
-
-        return $this->getComposerInformationFromLabel($identifier, $index);
-    }
-
-    /**
-     * @param string $identifier
-     * @param string $index
-     *
-     * @return array|string
-     */
-    public function getComposerInformationFromLabel($identifier, $index)
-    {
-        $composerJsonPath = substr($identifier, 0, $index).'/'.$this->filename.substr($identifier, $index);
-        $command = $this->generateP4Command(' files '.$composerJsonPath, false);
-        $this->executeCommand($command);
-        $result = $this->commandResult;
-        $index2 = strpos($result, 'no such file(s).');
-
-        if ($index2 === false) {
-            $index3 = strpos($result, 'change');
-
-            if (!($index3 === false)) {
-                $phrase = trim(substr($result, $index3));
-                $fields = explode(' ', $phrase);
-                $id = $fields[1];
-                $composerJson = substr($identifier, 0, $index).'/'.$this->filename.'@'.$id;
-
-                return $this->getComposerInformationFromPath($composerJson);
-            }
-        }
-
-        return '';
+        return !$composerFileContent
+            ? null
+            : json_decode($composerFileContent, true);
     }
 
     /**
diff --git a/composer.json b/composer.json
index 775717cb..16649116 100644
--- a/composer.json
+++ b/composer.json
@@ -16,7 +16,7 @@
         "composer-plugin-api": "^1.0"
     },
     "require-dev": {
-        "composer/composer": "^1.0.0"
+        "composer/composer": "^1.3.0"
     },
     "autoload": {
         "psr-4": {
@@ -32,7 +32,7 @@
     "extra": {
         "class": "Fxp\\Composer\\AssetPlugin\\FxpAssetPlugin",
         "branch-alias": {
-            "dev-master": "1.2-dev"
+            "dev-master": "1.3-dev"
         }
     }
 }
diff --git a/composer.lock b/composer.lock
index a3c7a118..5a2773a8 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,22 +4,22 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "hash": "01c3e6387753a458f15d0ddca74884cd",
-    "content-hash": "821c9cdf8b245ceea4f38768360e597d",
+    "hash": "60df0aa4790cfd76581ce50c29ef2a20",
+    "content-hash": "292c7331343b568bdea4bd5f06a1e96f",
     "packages": [],
     "packages-dev": [
         {
             "name": "composer/ca-bundle",
-            "version": "1.0.4",
+            "version": "1.0.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/composer/ca-bundle.git",
-                "reference": "ec21a59414b99501e723b63fd664aa8ead9c5680"
+                "reference": "a795611394b3c05164fd0eb291b492b39339cba4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/composer/ca-bundle/zipball/ec21a59414b99501e723b63fd664aa8ead9c5680",
-                "reference": "ec21a59414b99501e723b63fd664aa8ead9c5680",
+                "url": "https://api.github.com/repos/composer/ca-bundle/zipball/a795611394b3c05164fd0eb291b492b39339cba4",
+                "reference": "a795611394b3c05164fd0eb291b492b39339cba4",
                 "shasum": ""
             },
             "require": {
@@ -64,36 +64,36 @@
                 "ssl",
                 "tls"
             ],
-            "time": "2016-09-04 19:00:06"
+            "time": "2016-11-02 18:11:27"
         },
         {
             "name": "composer/composer",
-            "version": "1.2.1",
+            "version": "1.3.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/composer/composer.git",
-                "reference": "16422c4b1ac4286f7caecf5211136dc073191672"
+                "reference": "91dbca556764dcece45e1ba3aab14de2deaa9fec"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/composer/composer/zipball/16422c4b1ac4286f7caecf5211136dc073191672",
-                "reference": "16422c4b1ac4286f7caecf5211136dc073191672",
+                "url": "https://api.github.com/repos/composer/composer/zipball/91dbca556764dcece45e1ba3aab14de2deaa9fec",
+                "reference": "91dbca556764dcece45e1ba3aab14de2deaa9fec",
                 "shasum": ""
             },
             "require": {
                 "composer/ca-bundle": "^1.0",
                 "composer/semver": "^1.0",
                 "composer/spdx-licenses": "^1.0",
-                "justinrainbow/json-schema": "^1.6 || ^2.0",
+                "justinrainbow/json-schema": "^1.6 || ^2.0 || ^3.0 || ^4.0",
                 "php": "^5.3.2 || ^7.0",
                 "psr/log": "^1.0",
                 "seld/cli-prompt": "^1.0",
                 "seld/jsonlint": "^1.4",
                 "seld/phar-utils": "^1.0",
-                "symfony/console": "^2.5 || ^3.0",
-                "symfony/filesystem": "^2.5 || ^3.0",
-                "symfony/finder": "^2.2 || ^3.0",
-                "symfony/process": "^2.1 || ^3.0"
+                "symfony/console": "^2.7 || ^3.0",
+                "symfony/filesystem": "^2.7 || ^3.0",
+                "symfony/finder": "^2.7 || ^3.0",
+                "symfony/process": "^2.7 || ^3.0"
             },
             "require-dev": {
                 "phpunit/phpunit": "^4.5 || ^5.0.5",
@@ -110,7 +110,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.2-dev"
+                    "dev-master": "1.3-dev"
                 }
             },
             "autoload": {
@@ -141,7 +141,7 @@
                 "dependency",
                 "package"
             ],
-            "time": "2016-09-12 09:27:20"
+            "time": "2017-01-07 17:08:51"
         },
         {
             "name": "composer/semver",
@@ -268,16 +268,16 @@
         },
         {
             "name": "justinrainbow/json-schema",
-            "version": "2.0.5",
+            "version": "4.1.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/justinrainbow/json-schema.git",
-                "reference": "6b2a33e6a768f96bdc2ead5600af0822eed17d67"
+                "reference": "d39c56a46b3ebe1f3696479966cd2b9f50aaa24f"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/justinrainbow/json-schema/zipball/6b2a33e6a768f96bdc2ead5600af0822eed17d67",
-                "reference": "6b2a33e6a768f96bdc2ead5600af0822eed17d67",
+                "url": "https://api.github.com/repos/justinrainbow/json-schema/zipball/d39c56a46b3ebe1f3696479966cd2b9f50aaa24f",
+                "reference": "d39c56a46b3ebe1f3696479966cd2b9f50aaa24f",
                 "shasum": ""
             },
             "require": {
@@ -294,7 +294,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.0.x-dev"
+                    "dev-master": "4.0.x-dev"
                 }
             },
             "autoload": {
@@ -330,7 +330,7 @@
                 "json",
                 "schema"
             ],
-            "time": "2016-06-02 10:59:52"
+            "time": "2016-12-22 16:43:46"
         },
         {
             "name": "psr/log",
@@ -429,16 +429,16 @@
         },
         {
             "name": "seld/jsonlint",
-            "version": "1.4.1",
+            "version": "1.5.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/Seldaek/jsonlint.git",
-                "reference": "e827b5254d3e58c736ea2c5616710983d80b0b70"
+                "reference": "19495c181d6d53a0a13414154e52817e3b504189"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/Seldaek/jsonlint/zipball/e827b5254d3e58c736ea2c5616710983d80b0b70",
-                "reference": "e827b5254d3e58c736ea2c5616710983d80b0b70",
+                "url": "https://api.github.com/repos/Seldaek/jsonlint/zipball/19495c181d6d53a0a13414154e52817e3b504189",
+                "reference": "19495c181d6d53a0a13414154e52817e3b504189",
                 "shasum": ""
             },
             "require": {
@@ -471,7 +471,7 @@
                 "parser",
                 "validator"
             ],
-            "time": "2016-09-14 15:17:56"
+            "time": "2016-11-14 17:59:58"
         },
         {
             "name": "seld/phar-utils",
@@ -519,16 +519,16 @@
         },
         {
             "name": "symfony/console",
-            "version": "v3.1.5",
+            "version": "v3.2.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/console.git",
-                "reference": "6cb0872fb57b38b3b09ff213c21ed693956b9eb0"
+                "reference": "4f9e449e76996adf310498a8ca955c6deebe29dd"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/console/zipball/6cb0872fb57b38b3b09ff213c21ed693956b9eb0",
-                "reference": "6cb0872fb57b38b3b09ff213c21ed693956b9eb0",
+                "url": "https://api.github.com/repos/symfony/console/zipball/4f9e449e76996adf310498a8ca955c6deebe29dd",
+                "reference": "4f9e449e76996adf310498a8ca955c6deebe29dd",
                 "shasum": ""
             },
             "require": {
@@ -539,17 +539,19 @@
             "require-dev": {
                 "psr/log": "~1.0",
                 "symfony/event-dispatcher": "~2.8|~3.0",
+                "symfony/filesystem": "~2.8|~3.0",
                 "symfony/process": "~2.8|~3.0"
             },
             "suggest": {
                 "psr/log": "For using the console logger",
                 "symfony/event-dispatcher": "",
+                "symfony/filesystem": "",
                 "symfony/process": ""
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.1-dev"
+                    "dev-master": "3.2-dev"
                 }
             },
             "autoload": {
@@ -576,20 +578,20 @@
             ],
             "description": "Symfony Console Component",
             "homepage": "https://symfony.com",
-            "time": "2016-09-28 00:11:12"
+            "time": "2017-01-08 20:47:33"
         },
         {
             "name": "symfony/debug",
-            "version": "v3.1.5",
+            "version": "v3.2.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/debug.git",
-                "reference": "e2b3f74a67fc928adc3c1b9027f73e1bc01190a8"
+                "reference": "810ba5c1c5352a4ddb15d4719e8936751dff0b05"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/debug/zipball/e2b3f74a67fc928adc3c1b9027f73e1bc01190a8",
-                "reference": "e2b3f74a67fc928adc3c1b9027f73e1bc01190a8",
+                "url": "https://api.github.com/repos/symfony/debug/zipball/810ba5c1c5352a4ddb15d4719e8936751dff0b05",
+                "reference": "810ba5c1c5352a4ddb15d4719e8936751dff0b05",
                 "shasum": ""
             },
             "require": {
@@ -606,7 +608,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.1-dev"
+                    "dev-master": "3.2-dev"
                 }
             },
             "autoload": {
@@ -633,20 +635,20 @@
             ],
             "description": "Symfony Debug Component",
             "homepage": "https://symfony.com",
-            "time": "2016-09-06 11:02:40"
+            "time": "2017-01-02 20:32:22"
         },
         {
             "name": "symfony/filesystem",
-            "version": "v3.1.5",
+            "version": "v3.2.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/filesystem.git",
-                "reference": "682fd8fdb3135fdf05fc496a01579ccf6c85c0e5"
+                "reference": "a0c6ef2dc78d33b58d91d3a49f49797a184d06f4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/filesystem/zipball/682fd8fdb3135fdf05fc496a01579ccf6c85c0e5",
-                "reference": "682fd8fdb3135fdf05fc496a01579ccf6c85c0e5",
+                "url": "https://api.github.com/repos/symfony/filesystem/zipball/a0c6ef2dc78d33b58d91d3a49f49797a184d06f4",
+                "reference": "a0c6ef2dc78d33b58d91d3a49f49797a184d06f4",
                 "shasum": ""
             },
             "require": {
@@ -655,7 +657,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.1-dev"
+                    "dev-master": "3.2-dev"
                 }
             },
             "autoload": {
@@ -682,20 +684,20 @@
             ],
             "description": "Symfony Filesystem Component",
             "homepage": "https://symfony.com",
-            "time": "2016-09-14 00:18:46"
+            "time": "2017-01-08 20:47:33"
         },
         {
             "name": "symfony/finder",
-            "version": "v3.1.5",
+            "version": "v3.2.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/finder.git",
-                "reference": "205b5ffbb518a98ba2ae60a52656c4a31ab00c6f"
+                "reference": "8c71141cae8e2957946b403cc71a67213c0380d6"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/finder/zipball/205b5ffbb518a98ba2ae60a52656c4a31ab00c6f",
-                "reference": "205b5ffbb518a98ba2ae60a52656c4a31ab00c6f",
+                "url": "https://api.github.com/repos/symfony/finder/zipball/8c71141cae8e2957946b403cc71a67213c0380d6",
+                "reference": "8c71141cae8e2957946b403cc71a67213c0380d6",
                 "shasum": ""
             },
             "require": {
@@ -704,7 +706,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.1-dev"
+                    "dev-master": "3.2-dev"
                 }
             },
             "autoload": {
@@ -731,20 +733,20 @@
             ],
             "description": "Symfony Finder Component",
             "homepage": "https://symfony.com",
-            "time": "2016-09-28 00:11:12"
+            "time": "2017-01-02 20:32:22"
         },
         {
             "name": "symfony/polyfill-mbstring",
-            "version": "v1.2.0",
+            "version": "v1.3.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/polyfill-mbstring.git",
-                "reference": "dff51f72b0706335131b00a7f49606168c582594"
+                "reference": "e79d363049d1c2128f133a2667e4f4190904f7f4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/polyfill-mbstring/zipball/dff51f72b0706335131b00a7f49606168c582594",
-                "reference": "dff51f72b0706335131b00a7f49606168c582594",
+                "url": "https://api.github.com/repos/symfony/polyfill-mbstring/zipball/e79d363049d1c2128f133a2667e4f4190904f7f4",
+                "reference": "e79d363049d1c2128f133a2667e4f4190904f7f4",
                 "shasum": ""
             },
             "require": {
@@ -756,7 +758,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.2-dev"
+                    "dev-master": "1.3-dev"
                 }
             },
             "autoload": {
@@ -790,20 +792,20 @@
                 "portable",
                 "shim"
             ],
-            "time": "2016-05-18 14:26:46"
+            "time": "2016-11-14 01:06:16"
         },
         {
             "name": "symfony/process",
-            "version": "v3.1.5",
+            "version": "v3.2.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/process.git",
-                "reference": "66de154ae86b1a07001da9fbffd620206e4faf94"
+                "reference": "350e810019fc52dd06ae844b6a6d382f8a0e8893"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/process/zipball/66de154ae86b1a07001da9fbffd620206e4faf94",
-                "reference": "66de154ae86b1a07001da9fbffd620206e4faf94",
+                "url": "https://api.github.com/repos/symfony/process/zipball/350e810019fc52dd06ae844b6a6d382f8a0e8893",
+                "reference": "350e810019fc52dd06ae844b6a6d382f8a0e8893",
                 "shasum": ""
             },
             "require": {
@@ -812,7 +814,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.1-dev"
+                    "dev-master": "3.2-dev"
                 }
             },
             "autoload": {
@@ -839,7 +841,7 @@
             ],
             "description": "Symfony Process Component",
             "homepage": "https://symfony.com",
-            "time": "2016-09-29 14:13:09"
+            "time": "2017-01-02 20:32:22"
         }
     ],
     "aliases": [],