diff --git a/scene.yaml b/scene.yaml
index 2196e99..b8d9962 100644
--- a/scene.yaml
+++ b/scene.yaml
@@ -1,14 +1,16 @@
 sources:
     elevation:
         type: Raster
-        url: https://tile.nextzen.org/tilezen/terrain/v1/256/terrarium/{z}/{x}/{y}.png
+        url: https://tile.nextzen.org/tilezen/terrain/v1/512/terrarium/{z}/{x}/{y}.png
         max_zoom: 14
+        tile_size: 512
         url_params:
             api_key: dmlO1fVQRPKI-GrVIYJ1YA
     mapzen:
-        type: TopoJSON
-        url: https://tile.nextzen.org/tilezen/vector/v1/256/all/{z}/{x}/{y}.topojson
+        type: MVT
+        url: https://tile.nextzen.org/tilezen/vector/v1/512/all/{z}/{x}/{y}.mvt
         max_zoom: 16
+        tile_size: 512
         url_params:
             api_key: dmlO1fVQRPKI-GrVIYJ1YA
 styles: