diff --git a/build.xml b/build.xml
index 4d65838a10..310c874fe5 100644
--- a/build.xml
+++ b/build.xml
@@ -37,7 +37,7 @@
     <property name="test.name" value="*Test"/>
     <property name="test.unit.src" value="${test.dir}/unit"/>
     <property name="dist.dir" value="${build.dir}/dist"/>
-    <property name="version" value="0.3.0-dev"/>
+    <property name="version" value="0.4.0-dev"/>
     <property name="final.name" value="${ant.project.name}-${version}"/>
 
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