diff --git a/README.md b/README.md
index 4dd7955..7d5eecc 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,9 @@
 ## ARC CWL RO-Crate Profile
 
 [Latest version](profile/arc_cwl_ro_crate.md)
+
+## Contributing to this repository
+
+The default branch `release` of this repo is kept in sync with the latest release tag and the zenodo record. 
+
+Therefore, all contributions to this repo must target the `dev` branch, which is representing the work in progress for the next versioned release.