diff --git a/examples/slides/ioslides/presentation.html b/examples/slides/ioslides/presentation.html
index 7e75cb6a..8a1e697d 100644
--- a/examples/slides/ioslides/presentation.html
+++ b/examples/slides/ioslides/presentation.html
@@ -4,7 +4,7 @@
 <meta charset="UTF-8">
 <link href="/home/guillaume/workspace/opensource/asciidoctor/asciidoctor-pdf.js/examples/slides/asciidoctor.css" rel="stylesheet">
 <link rel="stylesheet" href="/home/guillaume/workspace/opensource/asciidoctor/asciidoctor-pdf.js/examples/slides/ioslides/styles/main.css" rel="stylesheet">
-<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
+<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.7.2/css/font-awesome.min.css">
 <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.13.1/styles/github.min.css">
 <script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.13.1/highlight.min.js"></script>
 <script>
diff --git a/examples/slides/slides.html b/examples/slides/slides.html
index d7e8c0b6..a12b1395 100644
--- a/examples/slides/slides.html
+++ b/examples/slides/slides.html
@@ -4,7 +4,7 @@
 <meta charset="UTF-8">
 <link href="/home/guillaume/workspace/opensource/asciidoctor/asciidoctor-pdf.js/examples/slides/asciidoctor.css" rel="stylesheet">
 <link rel="stylesheet" href="/home/guillaume/workspace/opensource/asciidoctor/asciidoctor-pdf.js/examples/slides/slides.css" rel="stylesheet">
-<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
+<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.7.2/css/font-awesome.min.css">
 <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.13.1/styles/github.min.css">
 <script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.13.1/highlight.min.js"></script>
 <script>