diff --git a/PHPCI/Builder.php b/PHPCI/Builder.php
index 7c3c1dc1..1f9d29b1 100644
--- a/PHPCI/Builder.php
+++ b/PHPCI/Builder.php
@@ -3,6 +3,7 @@
 namespace PHPCI;
 use PHPCI\Model\Build;
 use b8\Store;
+use Symfony\Component\Yaml\Parser as YamlParser;
 
 class Builder
 {
@@ -153,7 +154,9 @@ class Builder
 			return false;
 		}
 
-		$this->config		= yaml_parse_file($this->buildPath . 'phpci.yml');
+		$yamlParser = new YamlParser();
+		$yamlFile = file_get_contents($this->buildPath . 'phpci.yml');
+		$this->config = $yamlParser->parse($yamlFile);
 
 		if(!isset($this->config['verbose']) || !$this->config['verbose'])
 		{
diff --git a/composer.json b/composer.json
index 22367854..78e5eefe 100644
--- a/composer.json
+++ b/composer.json
@@ -30,6 +30,6 @@
         "squizlabs/php_codesniffer": "1.*",
         "ircmaxell/password-compat": "1.x",
         "phpspec/phpspec": "2.*",
-        "ext-yaml": "*"
+        "symfony/yaml": "2.2.x-dev"
     }
-}
\ No newline at end of file
+}