diff --git a/README.md b/README.md
index ca0b68c..ce3bf39 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,7 @@
+# DEPRECATED - DIAGRAMS ARE NOW IN PDF FORMAT.
+
+https://git.fjla.uk/owlboard/dgp2 supports new PDF format schedule cards and offers some automated validation of codes.  This project will not be maintained.
+
 # diagram-parser
 
 This is an experimental project and is not yet used as part of the OwlBoard stack.