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index 512cd763..be9dd739 100644
--- a/packs/challenge.html
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@@ -429,8 +429,9 @@ <h1>Motivation<a class="headerlink" href="#motivation" title="Link to this headi
 <figure class="align-default" id="fig-domains">
 <img alt="../_images/domain_categories_with_relations.png" src="../_images/domain_categories_with_relations.png" />
 <figcaption>
-<p><span class="caption-number">Fig. 1 </span><span class="caption-text">Domains of Topological Deep Learning. Figure adopted from <a class="reference external" href="https://arxiv.org/abs/2206.00606">Hajij et al.,
-2023.</a> (work highly recommended for
+<p><span class="caption-number">Fig. 1 </span><span class="caption-text">Domains of Topological Deep Learning. Figure from <a class="reference external" href="https://arxiv.org/abs/2304.10031">Papillon et al.,
+  2023.</a> (adapted from <a class="reference external" href="https://arxiv.org/abs/2206.00606">Hajij et al.,
+2023.</a>, work highly recommended for
 those interested in knowing more details about these domains).</span><a class="headerlink" href="#fig-domains" title="Link to this image">#</a></p>
 </figcaption>
 </figure>