diff --git a/lib/caching.ts b/lib/caching.ts
index 293c054..3ee20e1 100644
--- a/lib/caching.ts
+++ b/lib/caching.ts
@@ -23,7 +23,7 @@ type UpdatedSeries = {
   lastFetch: Date;
   episodes: Episode[];
 } & Series;
-async function updateFetch(existingSeries: Series): Promise<UpdatedSeries | null> {
+async function updateFetch(existingSeries: Series): Promise<UpdatedSeries | Series | null> {
   const series = await nrkRadio.getSeries(existingSeries.id);
   if (!series) {
     return null;
@@ -32,6 +32,10 @@ async function updateFetch(existingSeries: Series): Promise<UpdatedSeries | null
     return !existingSeries.episodes.find((serieEpisode) => serieEpisode.id === episode.id);
   });
 
+  if (newEpisodes.length === 0) {
+    return existingSeries;
+  }
+
   /**
    * Since we don't control the API,
    * we should not make assumptions about the order,