diff --git a/config.toml b/config.toml
index ead432c..8760711 100644
--- a/config.toml
+++ b/config.toml
@@ -1,4 +1,6 @@
 [params]
 katexCssUrl = "//static.danilafe.com/katex/katex.min.css"
+normalizeCssUrl = "//static.danilafe.com/normalize/normalize.min.css"
 plausibleAnalyticsDomain = "danilafe.com"
 siteSourceUrl = "https://dev.danilafe.com/Web-Projects/blog-static/src/branch/master"
+visNetworkJsUrl = "//static.danilafe.com/vis-network/vis-network.min.js"
diff --git a/layouts/graph/single.html b/layouts/graph/single.html
index e5775f1..e0aeb3c 100644
--- a/layouts/graph/single.html
+++ b/layouts/graph/single.html
@@ -1,6 +1,6 @@
 {{ define "main" }}
 <h2>{{ .Title }} </h2>
-<script src="//unpkg.com/vis-network@9.1.0/dist/vis-network.min.js"></script>
+<script src="{{ .Site.Params.visNetworkJsUrl }}"></script>
 <script type="module" src="{{ .Site.BaseURL }}/graph/graph.js"></script>
 <style>
 #graph-container {
diff --git a/layouts/partials/head.html b/layouts/partials/head.html
index 881ee48..58d511e 100644
--- a/layouts/partials/head.html
+++ b/layouts/partials/head.html
@@ -10,8 +10,8 @@
     <meta name="matrix-highlight-comments" content="{{ . }}">
     {{ end }}
 
-    <link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Inconsolata:wght@400;700&family=Raleway&family=Lora&display=block" media="screen"> 
-    <link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/normalize/5.0.0/normalize.min.css" media="screen">
+    <link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Inconsolata:wght@400;700&family=Raleway&family=Lora&display=block" media="screen">
+    <link rel="stylesheet" href="{{ .Site.Params.normalizeCssUrl }}" media="screen">
     <link rel="stylesheet" href="{{ .Site.Params.katexCssUrl }}" crossorigin="anonymous">
     {{ range .AlternativeOutputFormats -}}
     <link rel="{{ .Rel }}" type="{{ .MediaType.Type | html }}" href="{{ .Permalink | safeURL }}">