diff --git a/src/lib.rs b/src/lib.rs
index b971fe0..8d0ed13 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -281,7 +281,13 @@ async fn check_feed(
         .map_err(|e| format!("could not get bytes from response from {url}, got {e}"))?;
     let mut feed =
         parse(feed.reader()).map_err(|e| format!("could not parse feed from {url}, got {e}"))?;
-    feed.entries.sort_by_key(|e| e.published);
+    feed.entries.sort_by_key(|e| {
+        if let Some(d) = e.published {
+            d
+        } else {
+            e.updated.unwrap_or(last_fetched)
+        }
+    });
     for post in feed.entries.into_iter().rev().take(5) {
         let last_year = now - ONE_YEAR;
         if post.published.unwrap_or(last_year) > last_fetched {