diff --git a/examples/mapbox-style.html b/examples/mapbox-style.html
index 69cb67c696..8285734955 100644
--- a/examples/mapbox-style.html
+++ b/examples/mapbox-style.html
@@ -18,6 +18,7 @@ cloak:
     <meta name="viewport" content="initial-scale=1.0, user-scalable=no, width=device-width">
     <title>Mapbox Style objects with ol-mapbox-style</title>
     <link rel="stylesheet" href="../css/ol.css" type="text/css">
+    <script src="https://cdn.polyfill.io/v2/polyfill.min.js?features=fetch,String.prototype.startsWith,Object.assign"></script>
     <style type="text/css">
       html, body, .map {
         margin: 0;
diff --git a/examples/templates/example.html b/examples/templates/example.html
index 3b50584a4b..c2b47eb212 100644
--- a/examples/templates/example.html
+++ b/examples/templates/example.html
@@ -139,7 +139,7 @@
   &lt;head&gt;
     &lt;title&gt;{{ title }}&lt;/title&gt;
     &lt;!-- The line below is only needed for old environments like Internet Explorer and Android 4.x --&gt;
-    &lt;script src="https://cdn.polyfill.io/v2/polyfill.min.js?features=requestAnimationFrame,Element.prototype.classList,URL"&gt;&lt;/script&gt;{{#if extraHead.remote}}
+    &lt;script src="https://cdn.polyfill.io/v2/polyfill.min.js?features=fetch,requestAnimationFrame,Element.prototype.classList,URL"&gt;&lt;/script&gt;{{#if extraHead.remote}}
 {{ indent extraHead.remote spaces=4 }}{{/if}}
     &lt;style&gt;
       .map {
diff --git a/examples/vector-tiles-4326.html b/examples/vector-tiles-4326.html
index fb93133566..8599afee6b 100644
--- a/examples/vector-tiles-4326.html
+++ b/examples/vector-tiles-4326.html
@@ -6,6 +6,8 @@ docs: >
   Example showing vector tiles in EPSG:4326 (styled using `ol-mapbox-style`) loaded from maptiler.com.
   **Note**: Make sure to get your own API key at https://www.maptiler.com/cloud/ when using this example. No map will be visible when the API key has expired.
 tags: "vector tiles, epsg4326, mapbox style, ol-mapbox-style, maptiler"
+resources:
+  - https://cdn.polyfill.io/v2/polyfill.min.js?features=String.prototype.startsWith,Object.assign"
 cloak:
   - key: get_your_own_D6rA4zTHduk6KOKTXzGB
     value: Get your own API key at https://www.maptiler.com/cloud/
diff --git a/examples/vector-tiles-4326.js b/examples/vector-tiles-4326.js
index f24cda8d31..eeb0f4ab67 100644
--- a/examples/vector-tiles-4326.js
+++ b/examples/vector-tiles-4326.js
@@ -4,7 +4,7 @@ import VectorTileSource from '../src/ol/source/VectorTile.js';
 import TileGrid from '../src/ol/tilegrid/TileGrid.js';
 
 import olms from 'ol-mapbox-style';
-import {defaultResolutions} from 'ol-mapbox-style/util.js';
+import {defaultResolutions} from 'ol-mapbox-style/dist/util.js';
 
 const key = 'get_your_own_D6rA4zTHduk6KOKTXzGB';
 
diff --git a/package-lock.json b/package-lock.json
index 75bc8bfa95..249eb3f227 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2239,9 +2239,9 @@
       "dev": true
     },
     "@mapbox/mapbox-gl-style-spec": {
-      "version": "13.9.1",
-      "resolved": "https://registry.npmjs.org/@mapbox/mapbox-gl-style-spec/-/mapbox-gl-style-spec-13.9.1.tgz",
-      "integrity": "sha512-7sOXtrliGz3LAErjJc0q1MtYGcmgwwE1G/PzoTrhvSQTcexSVz+v88QKZ4lAzvhF36ItxzI/UdFilsssAw6hYQ==",
+      "version": "13.11.0",
+      "resolved": "https://registry.npmjs.org/@mapbox/mapbox-gl-style-spec/-/mapbox-gl-style-spec-13.11.0.tgz",
+      "integrity": "sha512-OIMGgdp7+KLvSC0v699sXIo7AmBko7XRhsMLCWkxkFfVo7qyUxVkoDpU+xpfvghPteLYy4d30C9sVSQH8IKFwA==",
       "dev": true,
       "requires": {
         "@mapbox/jsonlint-lines-primitives": "~2.0.2",
@@ -9735,12 +9735,12 @@
       "dev": true
     },
     "ol-mapbox-style": {
-      "version": "5.0.2",
-      "resolved": "https://registry.npmjs.org/ol-mapbox-style/-/ol-mapbox-style-5.0.2.tgz",
-      "integrity": "sha512-uXerYhr1FIs+pVtDgPu2oiAFtBULBIXgKcZo4AorSTXoHDyu0tv+IVmPTU0UoMS44pbJQJS8tvEJVf36mteyng==",
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/ol-mapbox-style/-/ol-mapbox-style-6.0.0.tgz",
+      "integrity": "sha512-ODSaYtLvSentp655RdS/cTlK2zCMuOxz9idDo3hyxh+ARgkYu69fZHomjeEJ49pW16Bv8Am8SZSfBUGT5SOW+w==",
       "dev": true,
       "requires": {
-        "@mapbox/mapbox-gl-style-spec": "^13.9.0",
+        "@mapbox/mapbox-gl-style-spec": "^13.11.0",
         "mapbox-to-css-font": "^2.4.0",
         "webfont-matcher": "^1.1.0"
       }
diff --git a/package.json b/package.json
index 8013957ccc..5c5dad91a3 100644
--- a/package.json
+++ b/package.json
@@ -81,7 +81,7 @@
     "loglevelnext": "^3.0.1",
     "marked": "0.8.0",
     "mocha": "7.0.1",
-    "ol-mapbox-style": "^5.0.2",
+    "ol-mapbox-style": "^6.0.0",
     "pixelmatch": "^5.1.0",
     "pngjs": "^3.4.0",
     "proj4": "2.6.0",