diff --git a/update.sh b/update.sh
index 3d86d9859..efc43e69f 100755
--- a/update.sh
+++ b/update.sh
@@ -10,7 +10,8 @@ fi
 versions=( "${versions[@]%/}" )
 
 releasesPage="$(curl -fsSL 'https://www.ruby-lang.org/en/downloads/releases/')"
-newsPage="$(curl -fsSL 'https://www.ruby-lang.org/en/news/')" # occasionally, releases don't show up on the Releases page
+newsPage="$(curl -fsSL 'https://www.ruby-lang.org/en/news/')" # occasionally, releases don't show up on the Releases page (see https://github.com/ruby/www.ruby-lang.org/blob/master/_data/releases.yml)
+# TODO consider parsing https://github.com/ruby/www.ruby-lang.org/blob/master/_data/downloads.yml as well
 
 latest_gem_version() {
 	curl -fsSL "https://rubygems.org/api/v1/gems/$1.json" | sed -r 's/^.*"version":"([^"]+)".*$/\1/'