diff --git a/src/_includes/partials/navigation.html b/src/_includes/partials/navigation.html
index 08e64b1..45a8ba4 100644
--- a/src/_includes/partials/navigation.html
+++ b/src/_includes/partials/navigation.html
@@ -41,10 +41,10 @@
         
         <!-- Dark Mode Toggle -->
         <!-- Reference: https://github.com/coliff/dark-mode-switch -->
-        <div class="custom-control custom-switch">
-            <input type="checkbox" class="custom-control-input" id="darkSwitch" />
+        <div class="form-check form-switch">
+            <input type="checkbox" class="form-check-input" id="darkSwitch" />
             <label
-                class="custom-control-label"
+                class="form-check-label"
                 for="darkSwitch"
                 id="darkSwitchLabel"
             >Dark Mode</label
diff --git a/src/_includes/partials/site-head.html b/src/_includes/partials/site-head.html
index b222cb0..5e93a27 100644
--- a/src/_includes/partials/site-head.html
+++ b/src/_includes/partials/site-head.html
@@ -5,37 +5,18 @@
 <meta name="viewport" content="width=device-width, initial-scale=1" />
 
 <!-- Bootstrap -->
-<link
-  rel="stylesheet"
-       href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css"
-       integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T"
-       crossorigin="anonymous"
-/>
-<script
-  src="https://code.jquery.com/jquery-3.3.1.slim.min.js"
-       integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo"
-       crossorigin="anonymous"
-></script>
-<script
-  src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js"
-       integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1"
-       crossorigin="anonymous"
-></script>
-<script
-  src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"
-       integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM"
-       crossorigin="anonymous"
-></script>
+<script src="https://cdn.jsdelivr.net/npm/@popperjs/core@2.11.8/dist/umd/popper.min.js" integrity="sha384-I7E8VVD/ismYTF4hNIPjVp/Zjvgyol6VFvRkX/vR+Vc4jQkC+hVqc2pM8ODewa9r" crossorigin="anonymous"></script>
+<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.min.js" integrity="sha384-0pUGZvbkm6XF6gxjEnlmuGrJXVbNuzT9qBBavbLwCsOGabYfZo0T0to5eqruptLy" crossorigin="anonymous"></script>
+<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-QWTKZyjpPEjISv5WaRU9OFeRpok6YctnYmDr5pNlyT2bRjXh0JMhjY6hW+ALEwIH" crossorigin="anonymous">
+<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js" integrity="sha384-YvpcrYf0tY3lHB60NNkmXc5s9fDVZLESaAA55NDzOxhy9GkcIdslK1eN7N6jIeHz" crossorigin="anonymous"></script>
+
+<!-- jQuery -->
+<script src="https://code.jquery.com/jquery-3.7.1.slim.min.js" integrity="sha256-kmHvs0B+OpCW5GVHUNjv9rOmY0IvSIRcf7zGUDTDQM8=" crossorigin="anonymous"></script>
 
 <!-- highlight.js -->
-<link
-  rel="stylesheet"
-       href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/10.3.1/styles/default.min.css"
-/>
-<script src="//cdnjs.cloudflare.com/ajax/libs/highlight.js/10.3.1/highlight.min.js"></script>
-<script>
- hljs.initHighlightingOnLoad();
-</script>
+<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/styles/default.min.css">
+<script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/highlight.min.js"></script>
+<script>hljs.highlightAll();</script>
 
 <!-- Stylesheet -->
 <link rel="stylesheet" type="text/css" href="/style.css" />