diff --git a/apps/openstmap/custom.html b/apps/openstmap/custom.html
index 6f611dd86..3bba997e7 100644
--- a/apps/openstmap/custom.html
+++ b/apps/openstmap/custom.html
@@ -66,20 +66,20 @@ TODO:
       However some don't allow cross-origin use */
       //var TILELAYER = 'https://{s}.tile.opentopomap.org/{z}/{x}/{y}.png'; // simple, high contrast, TOO SLOW
       //var TILELAYER = 'http://a.tile.stamen.com/toner/{z}/{x}/{y}.png'; // black and white
-      var TILELAYER = 'http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png';
-      var PREVIEWTILELAYER = 'http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png';
+      var TILELAYER = 'https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png';
+      var PREVIEWTILELAYER = 'https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png';
 
       // Create map and try and set the location to where the browser thinks we are
       var map = L.map('map').locate({setView: true, maxZoom: 16, enableHighAccuracy:true});
       // Tiles used for Bangle.js itself
       var bangleTileLayer = L.tileLayer(TILELAYER, {
         maxZoom: 18,
-        attribution: 'Map data &copy; <a href="http://openstreetmap.org/copyright">OpenStreetMap</a> contributors</a>'
+        attribution: 'Map data &copy; <a href="https://openstreetmap.org/copyright">OpenStreetMap</a> contributors</a>'
       });
       // Tiles used for the may the user sees (faster)
       var previewTileLayer = L.tileLayer(PREVIEWTILELAYER, {
         maxZoom: 18,
-        attribution: 'Map data &copy; <a href="http://openstreetmap.org/copyright">OpenStreetMap</a> contributors</a>'
+        attribution: 'Map data &copy; <a href="https://openstreetmap.org/copyright">OpenStreetMap</a> contributors</a>'
       });
       // Could optionally overlay trails: https://wiki.openstreetmap.org/wiki/Tiles