diff --git a/islandora_book.info b/islandora_book.info
index 7ed9407..41576f4 100644
--- a/islandora_book.info
+++ b/islandora_book.info
@@ -5,5 +5,5 @@ dependencies[] = fedora_repository
 dependencies[] = xml_forms
 dependencies[] = islandora_content_model_forms
 dependencies[] = islandora_collection_manager
-version = 11.3.1
+version = 6.x-dev
 core = 6.x