diff --git a/AS1024.GeoFeed/Controllers/GeofeedController.cs b/AS1024.GeoFeed/Controllers/GeofeedController.cs
index 1dbe7b7..3bb973d 100644
--- a/AS1024.GeoFeed/Controllers/GeofeedController.cs
+++ b/AS1024.GeoFeed/Controllers/GeofeedController.cs
@@ -31,7 +31,7 @@ namespace AS1024.GeoFeed.Controllers
             {
                 feed = await builder.GetGeoFeedData();
                 var cacheEntryOptions = new MemoryCacheEntryOptions()
-                    .SetAbsoluteExpiration(TimeSpan.FromHours(1));
+                    .SetSlidingExpiration(TimeSpan.FromMinutes(15));
                 memoryCache.Set(GeoFeedCacheKey, feed, cacheEntryOptions);
             }