diff --git a/examples/data/kml/2012-02-10.kml b/examples/data/kml/2012-02-10.kml
index ad7b112f4d..4ad89f7621 100644
--- a/examples/data/kml/2012-02-10.kml
+++ b/examples/data/kml/2012-02-10.kml
@@ -4,7 +4,7 @@
     <description>Created from OpenStreetMap data. Renderer v0.5</description>
     <!-- 
 Copyright (c) OpenStreetMap Contributors
-http://www.openstreetmap.org/
+https://www.openstreetmap.org/
 
 This work is licensed under the
 Creative Commons Attribution-ShareAlike 2.0 License.
@@ -13,7 +13,7 @@ http://creativecommons.org/licenses/by-sa/2.0/
     <ScreenOverlay id="CopyrightNotice">
       <name>Copyright Notice</name>
       <description>
-        <![CDATA[The data in this KML file is Copyright <a href="http://www.openstreetmap.org/">OpenStreetMap</a> Contributors. It is available under the <a href="http://creativecommons.org/licenses/by-sa/2.0/">Creative Commons Attribution-ShareAlike (CC-BY-SA) Version 2.0 License</a>.]]>
+        <![CDATA[The data in this KML file is Copyright <a href="https://www.openstreetmap.org/">OpenStreetMap</a> Contributors. It is available under the <a href="http://creativecommons.org/licenses/by-sa/2.0/">Creative Commons Attribution-ShareAlike (CC-BY-SA) Version 2.0 License</a>.]]>
       </description>
       <Snippet>Copyright (c) OpenStreetMap Contributors. CC-BY-SA 2.0 License.</Snippet>
       <Icon>
diff --git a/examples/mapbox-vector-tiles-advanced.js b/examples/mapbox-vector-tiles-advanced.js
index 1ca575a98e..31718d77e5 100644
--- a/examples/mapbox-vector-tiles-advanced.js
+++ b/examples/mapbox-vector-tiles-advanced.js
@@ -47,7 +47,7 @@ var map = new ol.Map({
       preload: Infinity,
       source: new ol.source.VectorTile({
         attributions: '© <a href="https://www.mapbox.com/map-feedback/">Mapbox</a> ' +
-          '© <a href="http://www.openstreetmap.org/copyright">' +
+          '© <a href="https://www.openstreetmap.org/copyright">' +
           'OpenStreetMap contributors</a>',
         format: new ol.format.MVT(),
         tileGrid: new ol.tilegrid.TileGrid({
diff --git a/examples/mapbox-vector-tiles.js b/examples/mapbox-vector-tiles.js
index ffba7d3152..eaa3261388 100644
--- a/examples/mapbox-vector-tiles.js
+++ b/examples/mapbox-vector-tiles.js
@@ -20,7 +20,7 @@ var map = new ol.Map({
     new ol.layer.VectorTile({
       source: new ol.source.VectorTile({
         attributions: '© <a href="https://www.mapbox.com/map-feedback/">Mapbox</a> ' +
-          '© <a href="http://www.openstreetmap.org/copyright">' +
+          '© <a href="https://www.openstreetmap.org/copyright">' +
           'OpenStreetMap contributors</a>',
         format: new ol.format.MVT(),
         tileGrid: ol.tilegrid.createXYZ({maxZoom: 22}),
diff --git a/externs/olx.js b/externs/olx.js
index 16acffa606..56ebd4fbbd 100644
--- a/externs/olx.js
+++ b/externs/olx.js
@@ -888,7 +888,7 @@ olx.control.AttributionOptions.prototype.target;
 /**
  * Specify if attributions can be collapsed. If you use an OSM source,
  * should be set to `false` — see
- * {@link http://www.openstreetmap.org/copyright OSM Copyright} —
+ * {@link https://www.openstreetmap.org/copyright OSM Copyright} —
  * Default is `true`.
  * @type {boolean|undefined}
  * @api
diff --git a/src/ol/source/osm.js b/src/ol/source/osm.js
index a100a7e656..32a160badb 100644
--- a/src/ol/source/osm.js
+++ b/src/ol/source/osm.js
@@ -56,6 +56,6 @@ ol.inherits(ol.source.OSM, ol.source.XYZ);
  */
 ol.source.OSM.ATTRIBUTION = new ol.Attribution({
   html: '&copy; ' +
-      '<a href="http://www.openstreetmap.org/copyright">OpenStreetMap</a> ' +
+      '<a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> ' +
       'contributors.'
 });