diff --git a/reference/html/README.html b/reference/html/README.html
index 8d7d30f..8b84e14 100644
--- a/reference/html/README.html
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@@ -666,7 +666,7 @@ Remember to set the <code>Scan Scope</code> to <code>All sources</code> since we
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-<link rel="stylesheet" href="js/highlight/styles/atom-one-dark-reasonable.min.css">
+<link rel="stylesheet" href="js/highlight/styles/github.min.css">
 <script src="js/highlight/highlight.min.js"></script>
 <script>hljs.initHighlighting()</script>
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diff --git a/reference/html/appendix.html b/reference/html/appendix.html
index 26599d3..9cbfcfa 100644
--- a/reference/html/appendix.html
+++ b/reference/html/appendix.html
@@ -200,7 +200,7 @@ Also, you can define your own properties.
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+<link rel="stylesheet" href="js/highlight/styles/github.min.css">
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 <script>hljs.initHighlighting()</script>
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diff --git a/reference/html/index.html b/reference/html/index.html
index ffac2ff..4f29c35 100644
--- a/reference/html/index.html
+++ b/reference/html/index.html
@@ -524,7 +524,7 @@ You can specify multiple base packages to scan.
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 <script type="text/javascript" src="js/toc.js"></script>
-<link rel="stylesheet" href="js/highlight/styles/atom-one-dark-reasonable.min.css">
+<link rel="stylesheet" href="js/highlight/styles/github.min.css">
 <script src="js/highlight/highlight.min.js"></script>
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diff --git a/reference/html/intro.html b/reference/html/intro.html
index 73d6cff..c0913a8 100644
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@@ -128,7 +128,7 @@ either an AMQP broker or Kafka as the transport.</p>
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-<link rel="stylesheet" href="js/highlight/styles/atom-one-dark-reasonable.min.css">
+<link rel="stylesheet" href="js/highlight/styles/github.min.css">
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 <script>hljs.initHighlighting()</script>
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diff --git a/reference/html/quickstart.html b/reference/html/quickstart.html
index e8891b8..53cdfaa 100644
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@@ -162,7 +162,7 @@ works with <code>spring-cloud-bus</code>.
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 <script type="text/javascript" src="js/toc.js"></script>
-<link rel="stylesheet" href="js/highlight/styles/atom-one-dark-reasonable.min.css">
+<link rel="stylesheet" href="js/highlight/styles/github.min.css">
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 <script>hljs.initHighlighting()</script>
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diff --git a/reference/html/sagan-index.html b/reference/html/sagan-index.html
index 4fe3b66..b83c31d 100644
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@@ -159,7 +159,7 @@ public class Application {
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-<link rel="stylesheet" href="js/highlight/styles/atom-one-dark-reasonable.min.css">
+<link rel="stylesheet" href="js/highlight/styles/github.min.css">
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diff --git a/reference/html/spring-cloud-bus.html b/reference/html/spring-cloud-bus.html
index ffac2ff..4f29c35 100644
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@@ -524,7 +524,7 @@ You can specify multiple base packages to scan.
 </div>
 <script type="text/javascript" src="js/tocbot/tocbot.min.js"></script>
 <script type="text/javascript" src="js/toc.js"></script>
-<link rel="stylesheet" href="js/highlight/styles/atom-one-dark-reasonable.min.css">
+<link rel="stylesheet" href="js/highlight/styles/github.min.css">
 <script src="js/highlight/highlight.min.js"></script>
 <script>hljs.initHighlighting()</script>
 </body>