diff --git a/examples/igc.html b/examples/igc.html
index 59e6c084de..e6fcb7cc01 100644
--- a/examples/igc.html
+++ b/examples/igc.html
@@ -3,7 +3,7 @@ layout: example.html
 title: IGC Data
 shortdesc: Example of tracks recorded from multiple paraglider flights on the same day, read from an IGC file.
 docs: >
-  <p>The five tracks contain a total of 49,707 unique coordinates. Zoom in to see more detail. The background layer is from <a href="http://www.opencyclemap.org/">OpenCycleMap</a>.</p>
+  <p>The five tracks contain a total of 49,707 unique coordinates. Zoom in to see more detail. The background layer is from <a href="https://www.opencyclemap.org/">OpenCycleMap</a>.</p>
 tags: "complex-geometry, closest-feature, igc, opencyclemap"
 ---
 <div id="map" class="map"></div>
diff --git a/examples/igc.js b/examples/igc.js
index f1eefe1fe6..4993e7eac5 100644
--- a/examples/igc.js
+++ b/examples/igc.js
@@ -85,7 +85,7 @@ var map = new ol.Map({
     new ol.layer.Tile({
       source: new ol.source.OSM({
         attributions: [
-          'All maps © <a href="http://www.opencyclemap.org/">OpenCycleMap</a>',
+          'All maps © <a href="https://www.opencyclemap.org/">OpenCycleMap</a>',
           ol.source.OSM.ATTRIBUTION
         ],
         url: 'http://{a-c}.tile.opencyclemap.org/cycle/{z}/{x}/{y}.png'
diff --git a/examples/localized-openstreetmap.html b/examples/localized-openstreetmap.html
index 620d9c834a..8ceb3eefc2 100644
--- a/examples/localized-openstreetmap.html
+++ b/examples/localized-openstreetmap.html
@@ -3,7 +3,7 @@ layout: example.html
 title: Localized OpenStreetMap
 shortdesc: Example of a localized OpenStreetMap map with a custom tile server and a custom attribution.
 docs: >
-  <p>The base layer is <a href="http://www.opencyclemap.org/">OpenCycleMap</a> with an overlay from <a href="http://www.openseamap.org/">OpenSeaMap</a>.
+  <p>The base layer is <a href="https://www.opencyclemap.org/">OpenCycleMap</a> with an overlay from <a href="http://www.openseamap.org/">OpenSeaMap</a>.
 tags: "localized-openstreetmap, openseamap, openstreetmap"
 ---
 <div id="map" class="map"></div>
diff --git a/examples/localized-openstreetmap.js b/examples/localized-openstreetmap.js
index 99a4b65f23..f0403cd760 100644
--- a/examples/localized-openstreetmap.js
+++ b/examples/localized-openstreetmap.js
@@ -8,7 +8,7 @@ goog.require('ol.source.OSM');
 var openCycleMapLayer = new ol.layer.Tile({
   source: new ol.source.OSM({
     attributions: [
-      'All maps © <a href="http://www.opencyclemap.org/">OpenCycleMap</a>',
+      'All maps © <a href="https://www.opencyclemap.org/">OpenCycleMap</a>',
       ol.source.OSM.ATTRIBUTION
     ],
     url: 'http://{a-c}.tile.opencyclemap.org/cycle/{z}/{x}/{y}.png'
diff --git a/src/ol/attribution.js b/src/ol/attribution.js
index 2297b075f3..36b61feb22 100644
--- a/src/ol/attribution.js
+++ b/src/ol/attribution.js
@@ -15,7 +15,7 @@ goog.require('ol.tilegrid');
  *       attributions: [
  *         new ol.Attribution({
  *           html: 'All maps &copy; ' +
- *               '<a href="http://www.opencyclemap.org/">OpenCycleMap</a>'
+ *               '<a href="https://www.opencyclemap.org/">OpenCycleMap</a>'
  *         }),
  *         ol.source.OSM.ATTRIBUTION
  *       ],