diff --git a/jsonld.php b/jsonld.php
index 3f77a69..0bef1f9 100644
--- a/jsonld.php
+++ b/jsonld.php
@@ -1,7 +1,7 @@
 <?php
 /**
  * PHP implementation of the JSON-LD API.
- * Version: 0.3.8-dev
+ * Version: 0.4.0
  *
  * @author Dave Longley
  *