diff --git a/build.xml b/build.xml
index aea1df86c..11b97a13b 100644
--- a/build.xml
+++ b/build.xml
@@ -102,8 +102,8 @@
   <property name="chmod.maxparallel" value="250"/>
   <property name="deprecation" value="false"/>
   <property name="optimize" value="true"/>
-  <property name="javac.target" value="1.2"/>
-  <property name="javac.source" value="1.2"/>
+  <property name="javac.target" value="1.4"/>
+  <property name="javac.source" value="1.4"/>
   <property name="junit.fork" value="false"/>
   <property name="junit.filtertrace" value="off"/>
   <property name="junit.summary" value="no"/>