diff --git a/feedleware/youtube/feed.py b/feedleware/youtube/feed.py
index cae5862..5c51d75 100644
--- a/feedleware/youtube/feed.py
+++ b/feedleware/youtube/feed.py
@@ -31,7 +31,11 @@ def construct_rss(client: APIClient, channel_id: str) -> str:
 
         video_id = video["resourceId"]["videoId"]
         link = f"https://www.youtube.com/watch?v={video_id}"
-        thumbnail = video["thumbnails"]["standard"]["url"]
+        thumbnail = ""
+
+        for size in ("standard", "maxres", *video["thumbnails"].keys()):
+            if size in video["thumbnails"]:
+                thumbnail = video["thumbnails"][size]["url"]
 
         item["guid"] = video["resourceId"]["videoId"]
         item["title"] = video.get("title", "Untitled Video")