diff --git a/README.md b/README.md
index 4353b5b95..4ed777556 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,5 @@
+> **NOTE: The content of this branch corresponds to the last updated version of the contents available on the [INSPIRE KNOWLEDGE BASE](https://inspire.ec.europa.eu/Data-Models/Data-Specifications/2892)**
+
 # INSPIRE UML models
 
 The purpose of this repository is to manage the changes to the INSPIRE UML models.