diff --git a/index.html b/index.html
index 9ac3366..0054ee0 100644
--- a/index.html
+++ b/index.html
@@ -100,7 +100,7 @@
 
 			L.tileLayer('https://{s}.basemaps.cartocdn.com/dark_all/{z}/{x}/{y}.png', {
 				detectRetina: true,
-				attribution: '&copy; <a href="http://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors, &copy; <a href="http://cartodb.com/attributions">CartoDB</a>'
+				attribution: '&copy; <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors, &copy; <a href="https://carto.com/attribution/">CartoDB</a>'
 			}).addTo(map);
 
 			let bounds = map.getBounds();