diff --git a/scripts/upgrade.d/upgrade.last.sh b/scripts/upgrade.d/upgrade.last.sh
index 4995771..eb8bd2e 100644
--- a/scripts/upgrade.d/upgrade.last.sh
+++ b/scripts/upgrade.d/upgrade.last.sh
@@ -2,6 +2,7 @@
 
 gitlab_version="16.3.0"
 
+# Upgrade path: https://gitlab-com.gitlab.io/support/toolbox/upgrade-path/
 # sha256sum found here: https://packages.gitlab.com/gitlab
 gitlab_debian_version="$(lsb_release -sc)"