diff --git a/etc/unbound/unbound.conf.d/cache.conf b/etc/unbound/unbound.conf.d/cache.conf
index 342b9a98..c4c120d9 100644
--- a/etc/unbound/unbound.conf.d/cache.conf
+++ b/etc/unbound/unbound.conf.d/cache.conf
@@ -10,8 +10,8 @@ server:
     rrset-cache-size: 50m
     # nxdomain cache, default 1m
     neg-cache-size: 10m
-    # Cache results for 5 minutes even if they had a shorter TTL. Cloudflare
+    # Cache results for 15 minutes even if they had a shorter TTL. Cloudflare
     # zone export used to have 1 second, and I have also been seeing 1
-    # minute in the wild, I think this shouldn't break anything, but bigger
+    # minute in the wild, I think 5 mins shouldn't break anything, but bigger
     # might.
-    cache-min-ttl: 300
+    cache-min-ttl: 900