diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,3 +1,6 @@
+> [!IMPORTANT]  
+> This repository has been migrated to the PPD Technical Support team inside the CERN GitLab instance: [RelVal](https://gitlab.cern.ch/cms-ppd/technical-support/web-services/RelVal). Please open and follow issues directly there, do not open or follow them here!
+
 # RelVal machine
 
 Run `git submodule init` and `git submodules update` to clone and update git submodules