diff --git a/gh-pages-template/index.html b/gh-pages-template/index.html
index 8e4e362ad3..7dff69a9f4 100644
--- a/gh-pages-template/index.html
+++ b/gh-pages-template/index.html
@@ -13,8 +13,8 @@
   - href: https://cdn.datatables.net/buttons/3.2.6/css/buttons.bootstrap5.min.css
 
 ext-js:
-  - href: "https://cdnjs.cloudflare.com/ajax/libs/plotly.js/3.5.1/plotly.min.js"
-    sri: "sha512-8nI/xmiM/DZPj7IbqWOlDPfBpO2mU3A4cp92QLebnPxQ3rZ3wOvWi2BoMHft59bVL1eMTv3mafOriBk65NzWIQ=="
+  - href: "https://cdnjs.cloudflare.com/ajax/libs/plotly.js/4.0.0/plotly.min.js"
+    sri: "sha512-Phf3pg/9EKuhzJDtdaoV15cS7txpPuAhOZlo2/9eVg9pi8n1TkLL8pi3dsKcbzAvH6ukWO38iRrW4ORN/LLPzQ=="
   - href: "https://cdnjs.cloudflare.com/ajax/libs/jquery/4.0.0/jquery.min.js"
     sri: "sha512-8LENNbXmzI/Gbj+OwXmqR6V4QaUAw0/porPzy1+dQoJqC0JPHedWoe0DDOTL2uHA5XXJyIsPtiMHH86pVlay6A=="
   - href: https://cdn.datatables.net/2.3.7/js/dataTables.min.js