Upgrade antcontrib
diff --git a/module.ivy b/module.ivy
index abe92ad..a5b47f6 100644
--- a/module.ivy
+++ b/module.ivy
@@ -29,7 +29,7 @@
         <dependency org="junit" name="junit" rev="4.11" conf="test->default"/>
         <dependency org="org.apache.ant" name="ant" rev="1.9.4" conf="default->default"/>
         <dependency org="org.apache.ivy" name="ivy" rev="2.4.0" conf="default->default"/>
-        <dependency org="ant-contrib" name="ant-contrib" rev="1.0b2" conf="default->default"/>
+        <dependency org="ant-contrib" name="ant-contrib" rev="1.0b3" conf="default->default"/>
         <dependency org="commons-cli" name="commons-cli" rev="1.2" conf="default->default"/>
         <!-- ivy uses a different namespace to reference ant -->
         <exclude org="ant" module="*"/>