diff --git a/app/src/Start.tsx b/app/src/Start.tsx
index 1cb22af..7b69a6c 100644
--- a/app/src/Start.tsx
+++ b/app/src/Start.tsx
@@ -96,7 +96,8 @@ const ExampleList = styled("div", {
 });
 
 const EXAMPLE_FILES = [
-  "https://data.source.coop/protomaps/openstreetmap/tiles/v3.pmtiles",
+  "https://demo-bucket.protomaps.com/v4.pmtiles",
+  "https://data.source.coop/protomaps/openstreetmap/v4.pmtiles",
   "https://pmtiles.io/stamen_toner(raster)CC-BY+ODbL_z3.pmtiles",
   "https://r2-public.protomaps.com/protomaps-sample-datasets/cb_2018_us_zcta510_500k.pmtiles",
   "https://pmtiles.io/usgs-mt-whitney-8-15-webp-512.pmtiles",