diff --git a/examples/cartodb.html b/examples/cartodb.html
index 7ec92747e2..58f675641e 100644
--- a/examples/cartodb.html
+++ b/examples/cartodb.html
@@ -5,6 +5,8 @@ shortdesc: Example of a cartodb map.
 docs: >
   A simple example with an anonymous cartodb map
 tags: "simple, openstreetmap, attribution"
+resources:
+  - https://cdn.jsdelivr.net/npm/bootstrap@5.2.0/dist/css/bootstrap.min.css
 ---
 <div id="map" class="map"></div>
 <form class="row">
diff --git a/examples/cluster.html b/examples/cluster.html
index e17913f5e0..37d6afddab 100644
--- a/examples/cluster.html
+++ b/examples/cluster.html
@@ -5,6 +5,8 @@ shortdesc: Example of using ol/source/Cluster.
 docs: >
   This example shows how to do clustering on point features.
 tags: "cluster, vector"
+resources:
+  - https://cdn.jsdelivr.net/npm/bootstrap@5.2.0/dist/css/bootstrap.min.css
 ---
 <div id="map" class="map"></div>
 <form>