Derive the Atom feed timestamp from its entries

1 files changed, 1 insertions, 1 deletions

diff --git a/app/views/rss/updates.xml.builder b/app/views/rss/updates.xml.builder
index f261de89..a2c277d6 100644
--- a/app/views/rss/updates.xml.builder
+++ b/app/views/rss/updates.xml.builder
@@ -4,7 +4,7 @@ xml.feed(:xmlns => "http://www.w3.org/2005/Atom", "xml:base" => @host) do
   xml.title("Chaos Computer Club Updates")
   xml.link(:href => "https://www.ccc.de/")
   xml.link(:rel => "self", :href => "#{@host}/rss/updates.xml")
-  xml.updated((@items.first&.published_at || Time.now).xmlschema)
+  xml.updated((@items.map(&:updated_at).compact.max || Time.now).xmlschema)
   xml.author do
     xml.name("Chaos Computer Club e.V.")
   end