diff --git a/app/index.html b/app/index.html
index 2a03af72..08518298 100644
--- a/app/index.html
+++ b/app/index.html
@@ -4,7 +4,7 @@
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>Protomaps Basemaps</title>
-    <link rel="preconnect" href="https://demo-bucket.protomaps.com"/>
+    <link rel="preconnect" href="https://source.coop"/>
   </head>
   <body>
     <div id="root"></div>
diff --git a/app/src/MapView.tsx b/app/src/MapView.tsx
index 395f12f9..eca09716 100644
--- a/app/src/MapView.tsx
+++ b/app/src/MapView.tsx
@@ -440,7 +440,7 @@ function MapView() {
   const [theme, setTheme] = createSignal<string>(hash.theme || "light");
   const [lang, setLang] = createSignal<string>(hash.lang || "en");
   const [tiles, setTiles] = createSignal<string>(
-    hash.tiles || "https://demo-bucket.protomaps.com/v4.pmtiles",
+    hash.tiles || "https://data.source.coop/protomaps/openstreetmap/v4.pmtiles",
   );
   const [localSprites, setLocalSprites] = createSignal<boolean>(
     hash.local_sprites === "true",
@@ -644,7 +644,7 @@ function MapView() {
         </div>
       </div>
       <div
-        class="h-full flex"
+        class="h-full flex grow-1"
         onKeyPress={handleKeyPress}
         ondragover={dragover}
         ondrop={drop}
