diff --git a/layouts/partials/head_extended.html b/layouts/partials/head_extended.html
index 4f8461c..da5c7c4 100644
--- a/layouts/partials/head_extended.html
+++ b/layouts/partials/head_extended.html
@@ -1,9 +1,8 @@
 {{- /* Here's where the customized version should be. */ -}}
 {{- /* Prism.js */ -}}
-<script defer src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.20.0/components/prism-core.min.js"></script>
-<script defer src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.20.0/plugins/autoloader/prism-autoloader.min.js"></script>
-<script defer src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.20.0/plugins/keep-markup/prism-keep-markup.min.js"></script>
-<script defer src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.20.0/plugins/line-numbers/prism-line-numbers.min.js"></script>
+<script defer src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.29.0/components/prism-core.min.js"></script>
+<script defer src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.29.0/plugins/autoloader/prism-autoloader.min.js"></script>
+<script defer src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.29.0/plugins/keep-markup/prism-keep-markup.min.js"></script>
 
 {{ $prism := resources.Get "css/prism.css" }}
 <link rel="stylesheet" href="{{ $prism.Permalink }}"/>