diff --git a/build.xml b/build.xml
index 9c4a305c1..1c65e8eea 100644
--- a/build.xml
+++ b/build.xml
@@ -20,8 +20,8 @@
 
   <property name="Name" value="Apache Ant"/>
   <property name="name" value="ant"/>
-  <property name="version" value="1.5alpha"/>
-  <property name="manifest-version" value="1.4.9"/>
+  <property name="version" value="1.6alpha"/>
+  <property name="manifest-version" value="1.5.9"/>
 
   <property name="debug" value="true" />
   <property name="chmod.fail" value="true" />