diff --git a/open/gcube-4.20.0.yaml b/open/gcube-4.20.0.yaml
index e331ed2..aaf1a7f 100644
--- a/open/gcube-4.20.0.yaml
+++ b/open/gcube-4.20.0.yaml
@@ -4,6 +4,10 @@ gCube_release:
   Version: 4.20.0
   Components:
   
+    CoreLibraries:
+      - name: gx-rest
+        version: 1.3.1
+  
     Libraries:
       - name: ckan2zenodo-library
         version: 0.0.1