diff --git a/open/gcube-5.4.0.yaml b/open/gcube-5.4.0.yaml
index c97652c..eb103a5 100644
--- a/open/gcube-5.4.0.yaml
+++ b/open/gcube-5.4.0.yaml
@@ -131,6 +131,8 @@ gCube_release:
          version: 4.4.0
        - name: vre-definition
          version: 5.2.0
+       - name: social-mail-servlet
+         version: 2.5.0  
  
       
      Distributions: