diff --git a/default.properties b/default.properties
index 47bb98aea..ebbf22dda 100644
--- a/default.properties
+++ b/default.properties
@@ -29,7 +29,7 @@ component.package = org.apache.commons.lang
 component.title = Core Language Utilities
 
 # The current version number of this component
-component.version = 2.1-RC3
+component.version = 2.1-RC4
 
 # The current year used for the end date in copyrights.
 copyright.end = 2005