diff --git a/LICENSE b/LICENSE
index 7afcc7d..a4176ad 100644
--- a/LICENSE
+++ b/LICENSE
@@ -43,5 +43,5 @@ This project includes the following third-party software:
 
 - Map data: OpenStreetMap contributors (ODbL 1.0)
 - Map tiles: OpenFreeMap (https://openfreemap.org)
-- Satellite imagery: Esri, Maxar, Earthstar Geographics
+- Satellite imagery: EOX IT Services GmbH — Sentinel-2 cloudless 2020 (CC BY 4.0) — https://s2maps.eu
 - Geocoding: Nominatim / OpenStreetMap (ODbL 1.0)
diff --git a/css/styles.css b/css/styles.css
index 5734469..5195b6d 100644
--- a/css/styles.css
+++ b/css/styles.css
@@ -166,9 +166,9 @@ input,textarea,select{font-family:var(--font)}
 #map{width:100%;height:100%}
 #map:not(.dark-map):not(.sat-mode) canvas{filter:brightness(0.85)}
 #map.dark-map canvas{filter:brightness(1.8) contrast(0.9);will-change:filter}
-#esri-attribution{display:none;position:absolute;bottom:6px;left:6px;background:rgba(30,30,30,.6);color:#aaa;font-size:.55rem;padding:2px 6px;border-radius:4px;z-index:2;pointer-events:auto}
-#esri-attribution a{color:var(--accent);text-decoration:none}
-#map.sat-mode~#esri-attribution{display:block}
+#sat-attribution{display:none;position:absolute;bottom:6px;left:6px;background:rgba(30,30,30,.6);color:#aaa;font-size:.55rem;padding:2px 6px;border-radius:4px;z-index:2;pointer-events:auto}
+#sat-attribution a{color:var(--accent);text-decoration:none}
+#map.sat-mode~#sat-attribution{display:block}
 .maplibregl-ctrl-bottom-right{bottom:16px!important;right:2px!important}
 .maplibregl-ctrl-group{background:var(--surface)!important;border:1px solid var(--border)!important;border-radius:10px!important;overflow:hidden;box-shadow:var(--shadow)!important}
 .maplibregl-ctrl-group button{background:var(--surface)!important;border-bottom:1px solid var(--border)!important}
diff --git a/index.html b/index.html
index ada8dbe..81d99c1 100644
--- a/index.html
+++ b/index.html
@@ -149,7 +149,7 @@
       <div id="map-loading-status">Starting…</div>
     </div>
   </div>
-  <div id="esri-attribution">&copy; <a href="https://www.esri.com/" target="_blank">Esri</a></div>
+  <div id="sat-attribution">&copy; <a href="https://s2maps.eu" target="_blank">EOX</a> (Sentinel-2 cloudless)</div>
 </div>
 </div>
 
diff --git a/js/map.js b/js/map.js
index 1b6d19e..39ef068 100644
--- a/js/map.js
+++ b/js/map.js
@@ -12,7 +12,7 @@ const STYLE_BRIGHT = 'https://tiles.openfreemap.org/styles/bright';
 const STYLE_DARK = 'https://tiles.openfreemap.org/styles/dark';
 const STYLE_SAT = {
   version:8,
-  sources:{sat:{type:'raster',tiles:['https://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer/tile/{z}/{y}/{x}'],tileSize:256,maxzoom:19}},
+  sources:{sat:{type:'raster',tiles:['https://tiles.maps.eox.at/wmts/1.0.0/s2cloudless-2020_3857/default/g/{z}/{y}/{x}.jpg'],tileSize:256,maxzoom:18}},
   layers:[{id:'sat',type:'raster',source:'sat',paint:{'raster-fade-duration':0}}]
 };
 function normalizeDarkLabels() {