Update 0.4.0 release date to reflect new commit.
diff --git a/CHANGES b/CHANGES
index 5cf9c60..d733c02 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,6 +1,6 @@
 Revision history for Lucy
 
-0.4.0  2014-08-19
+0.4.0  2014-08-21
 
   Bugfixes: