diff --git a/mustache.js b/mustache.js
index 0644800..8944620 100644
--- a/mustache.js
+++ b/mustache.js
@@ -417,7 +417,7 @@ var Mustache = function () {
 
   return({
     name: "mustache.js",
-    version: "0.4.1",
+    version: "0.4.2-dev",
 
     /*
       Turns a template and view into HTML
diff --git a/mustache.js.nuspec b/mustache.js.nuspec
index c1d3af1..a6b5a1a 100644
--- a/mustache.js.nuspec
+++ b/mustache.js.nuspec
@@ -2,7 +2,7 @@
 <package >
   <metadata>
     <id>mustache.js</id>
-    <version>0.4.1</version>
+    <version>0.4.2-dev</version>
     <authors>mustache.js Authors</authors>
     <licenseUrl>https://github.com/janl/mustache.js/blob/master/LICENSE</licenseUrl>
     <projectUrl>http://mustache.github.com/</projectUrl>
diff --git a/wrappers/qooxdoo/qooxdoo.mustache.js.tpl.pre b/wrappers/qooxdoo/qooxdoo.mustache.js.tpl.pre
index 5c0482d..d8b987b 100644
--- a/wrappers/qooxdoo/qooxdoo.mustache.js.tpl.pre
+++ b/wrappers/qooxdoo/qooxdoo.mustache.js.tpl.pre
@@ -19,7 +19,7 @@
 
    This class contains code based on the following work:
 
-   * Mustache.js version 0.4.1
+   * Mustache.js version 0.4.2-dev
 
      Code:
        https://github.com/janl/mustache.js