diff --git a/src/front/static/query/js/query-ontology-viewer.js b/src/front/static/query/js/query-ontology-viewer.js
index 8d8e34c7..dbb8b98c 100644
--- a/src/front/static/query/js/query-ontology-viewer.js
+++ b/src/front/static/query/js/query-ontology-viewer.js
@@ -11,7 +11,7 @@
 const OntologyViewer = (() => {
     const MODAL_ID = 'ontologyViewerModal';
     const CONTAINER_ID = 'ontologyViewerContainer';
-    const D3_CDN = 'https://d3js.org/d3.v7.min.js';
+    const D3_CDN = 'https://cdn.jsdelivr.net/npm/d3@7/dist/d3.min.js';
 
     let _modal = null;
     let _zoom = null;
diff --git a/src/front/static/query/js/query-sigmagraph.js b/src/front/static/query/js/query-sigmagraph.js
index a23e8f71..aae3c60a 100644
--- a/src/front/static/query/js/query-sigmagraph.js
+++ b/src/front/static/query/js/query-sigmagraph.js
@@ -86,7 +86,7 @@ var SigmaGraph = (function () {
     }
 
     var _GRAPH_LIB_URLS = [
-        'https://d3js.org/d3.v7.min.js',
+        'https://cdn.jsdelivr.net/npm/d3@7/dist/d3.min.js',
         'https://cdnjs.cloudflare.com/ajax/libs/graphology/0.26.0/graphology.umd.min.js',
         'https://cdn.jsdelivr.net/npm/graphology-library@0.8.0/dist/graphology-library.min.js',
         'https://cdnjs.cloudflare.com/ajax/libs/sigma.js/3.0.2/sigma.min.js'
diff --git a/src/front/static/registry/js/registry.js b/src/front/static/registry/js/registry.js
index 07dab958..b4565fc6 100644
--- a/src/front/static/registry/js/registry.js
+++ b/src/front/static/registry/js/registry.js
@@ -899,7 +899,7 @@ document.addEventListener('DOMContentLoaded', function () {
     //  BRIDGES
     // =====================================================================
 
-    const D3_CDN = 'https://d3js.org/d3.v7.min.js';
+    const D3_CDN = 'https://cdn.jsdelivr.net/npm/d3@7/dist/d3.min.js';
     const BRIDGES_VIEW_KEY = 'ontobricks-bridges-view';
     const NODE_PALETTE = [
         '#4e79a7', '#f28e2b', '#e15759', '#76b7b2', '#59a14f',
diff --git a/src/front/templates/partials/mapping/_mapping_design.html b/src/front/templates/partials/mapping/_mapping_design.html
index 64b28da6..5a8fca5c 100644
--- a/src/front/templates/partials/mapping/_mapping_design.html
+++ b/src/front/templates/partials/mapping/_mapping_design.html
@@ -116,4 +116,4 @@ <h6 id="panelTitle"><i class="bi bi-box"></i> <span id="panelItemName">Select It
 </div>
 
 <!-- D3.js Library -->
-<script src="https://d3js.org/d3.v7.min.js"></script>
+<script src="https://cdn.jsdelivr.net/npm/d3@7/dist/d3.min.js"></script>
diff --git a/src/front/templates/partials/ontology/_ontology_map.html b/src/front/templates/partials/ontology/_ontology_map.html
index b6ecfe2c..56a5d71e 100644
--- a/src/front/templates/partials/ontology/_ontology_map.html
+++ b/src/front/templates/partials/ontology/_ontology_map.html
@@ -138,4 +138,4 @@ <h4 class="mb-1"><i class="bi bi-pencil me-2"></i>Ontology Designer</h4>
 </div>
 
 <!-- D3.js Library -->
-<script src="https://d3js.org/d3.v7.min.js"></script>
+<script src="https://cdn.jsdelivr.net/npm/d3@7/dist/d3.min.js"></script>