diff --git a/themes/hugo-theme-altinn/static/revealjs/plugin/multiplex/package.json b/themes/hugo-theme-altinn/static/revealjs/plugin/multiplex/package.json
index c43a40744b..ba047a00a0 100644
--- a/themes/hugo-theme-altinn/static/revealjs/plugin/multiplex/package.json
+++ b/themes/hugo-theme-altinn/static/revealjs/plugin/multiplex/package.json
@@ -10,10 +10,10 @@
     "node": "~20.17.0"
   },
   "dependencies": {
-    "express": "~4.20.0",
+    "express": "~4.21.0",
     "grunt-cli": "~1.5.0",
     "mustache": "~4.2.0",
-    "socket.io": "4.7.5"
+    "socket.io": "4.8.0"
   },
   "license": "MIT"
 }