diff --git a/README.md b/README.md
index 57b4e42..9eb9f8f 100644
--- a/README.md
+++ b/README.md
@@ -1,14 +1,14 @@
 Composer Plugin for Puli
 ========================
 
-[![Build Status](https://travis-ci.org/puli/composer-plugin.png?branch=master)](https://travis-ci.org/puli/composer-plugin)
-[![Scrutinizer Code Quality](https://scrutinizer-ci.com/g/puli/composer-plugin/badges/quality-score.png?b=master)](https://scrutinizer-ci.com/g/puli/composer-plugin/?branch=master)
+[![Build Status](https://travis-ci.org/puli/composer-plugin.png?branch=1.0.0-alpha2)](https://travis-ci.org/puli/composer-plugin)
+[![Scrutinizer Code Quality](https://scrutinizer-ci.com/g/puli/composer-plugin/badges/quality-score.png?b=1.0.0-alpha2)](https://scrutinizer-ci.com/g/puli/composer-plugin/?branch=1.0.0-alpha2)
 [![SensioLabsInsight](https://insight.sensiolabs.com/projects/2c283cc0-acfd-4761-99d1-6b503f8b152f/mini.png)](https://insight.sensiolabs.com/projects/2c283cc0-acfd-4761-99d1-6b503f8b152f)
 [![Latest Stable Version](https://poser.pugx.org/puli/composer-plugin/v/stable.png)](https://packagist.org/packages/puli/composer-plugin)
 [![Total Downloads](https://poser.pugx.org/puli/composer-plugin/downloads.png)](https://packagist.org/packages/puli/composer-plugin)
 [![Dependency Status](https://www.versioneye.com/php/puli:composer-plugin/1.0.0/badge.png)](https://www.versioneye.com/php/puli:composer-plugin/1.0.0)
 
-Latest release: [1.0.0-alpha1](https://packagist.org/packages/puli/composer-plugin#1.0.0-alpha1)
+Latest release: [1.0.0-alpha2](https://packagist.org/packages/puli/composer-plugin#1.0.0-alpha2)
 
 PHP >= 5.3.9
 
diff --git a/composer.json b/composer.json
index b98425b..05242c8 100644
--- a/composer.json
+++ b/composer.json
@@ -20,7 +20,7 @@
         "composer/composer": "~1.0@dev",
         "symfony/filesystem": "~2.3"
     },
-    "minimum-stability": "dev",
+    "minimum-stability": "alpha",
     "autoload": {
         "psr-4": {
             "Puli\\Extension\\Composer\\": "src/"
diff --git a/src/ComposerPlugin.php b/src/ComposerPlugin.php
index 4a111e0..9d5e1cf 100644
--- a/src/ComposerPlugin.php
+++ b/src/ComposerPlugin.php
@@ -30,9 +30,9 @@
  */
 class ComposerPlugin implements PluginInterface
 {
-    const VERSION = '@package_version@';
+    const VERSION = '1.0.0-alpha2';
 
-    const RELEASE_DATE = '@release_date@';
+    const RELEASE_DATE = '2014-12-03';
 
     /**
      * Activates the plugin.