diff --git a/snapshot/htmlsingle/index.html b/snapshot/htmlsingle/index.html
index 31f46486..e6339db6 100644
--- a/snapshot/htmlsingle/index.html
+++ b/snapshot/htmlsingle/index.html
@@ -437,7 +437,95 @@
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-<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/prettify/r298/prettify.min.css">
+<style>
+/* Stylesheet for CodeRay to match GitHub theme | MIT License | http://foundation.zurb.com */
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+table.CodeRay{border-collapse:separate;border:0;margin-bottom:0;background:none}
+table.CodeRay td{vertical-align:top;line-height:inherit}
+table.CodeRay td.line-numbers{text-align:right}
+table.CodeRay td.code{padding:0 0 0 .75em}
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+.CodeRay .head .head{color:#f4f}
+</style>
 <script src="//cdnjs.cloudflare.com/ajax/libs/jquery/2.0.3/jquery.js"></script>
 </head>
 <body class="article toc2 toc-left">
@@ -1684,7 +1772,7 @@ <h4 id="datadog"><a class="anchor" href="#datadog"></a>Datadog</h4>
 </div>
 <div class="listingblock">
 <div class="content">
-<pre class="prettyprint highlight"><code>./runjava com.rabbitmq.perf.PerfTest --metrics-datadog-api-key YOUR_API_KEY</code></pre>
+<pre class="CodeRay highlight"><code>./runjava com.rabbitmq.perf.PerfTest --metrics-datadog-api-key YOUR_API_KEY</code></pre>
 </div>
 </div>
 <div class="paragraph">
@@ -1693,7 +1781,7 @@ <h4 id="datadog"><a class="anchor" href="#datadog"></a>Datadog</h4>
 </div>
 <div class="listingblock">
 <div class="content">
-<pre class="prettyprint highlight"><code>./runjava com.rabbitmq.perf.PerfTest --metrics-datadog-api-key YOUR_API_KEY \
+<pre class="CodeRay highlight"><code>./runjava com.rabbitmq.perf.PerfTest --metrics-datadog-api-key YOUR_API_KEY \
     --metrics-datadog-step-size 20</code></pre>
 </div>
 </div>
@@ -1706,7 +1794,7 @@ <h4 id="jmx"><a class="anchor" href="#jmx"></a>JMX</h4>
 </div>
 <div class="listingblock">
 <div class="content">
-<pre class="prettyprint highlight"><code>./runjava com.rabbitmq.perf.PerfTest --metrics-jmx</code></pre>
+<pre class="CodeRay highlight"><code>./runjava com.rabbitmq.perf.PerfTest --metrics-jmx</code></pre>
 </div>
 </div>
 </div>
@@ -1717,7 +1805,7 @@ <h4 id="prometheus"><a class="anchor" href="#prometheus"></a>Prometheus</h4>
 </div>
 <div class="listingblock">
 <div class="content">
-<pre class="prettyprint highlight"><code>./runjava com.rabbitmq.perf.PerfTest --metrics-prometheus</code></pre>
+<pre class="CodeRay highlight"><code>./runjava com.rabbitmq.perf.PerfTest --metrics-prometheus</code></pre>
 </div>
 </div>
 <div class="paragraph">
@@ -1727,7 +1815,7 @@ <h4 id="prometheus"><a class="anchor" href="#prometheus"></a>Prometheus</h4>
 </div>
 <div class="listingblock">
 <div class="content">
-<pre class="prettyprint highlight"><code>./runjava com.rabbitmq.perf.PerfTest --metrics-prometheus \
+<pre class="CodeRay highlight"><code>./runjava com.rabbitmq.perf.PerfTest --metrics-prometheus \
     --metrics-prometheus-port 8090 --metrics-prometheus-endpoint perf-test-metrics</code></pre>
 </div>
 </div>
@@ -1739,9 +1827,8 @@ <h4 id="prometheus"><a class="anchor" href="#prometheus"></a>Prometheus</h4>
 <div id="footer">
 <div id="footer-text">
 Version 2.17.0-SNAPSHOT<br>
-Last updated 2021-11-03 09:52:04 UTC
+Last updated 2021-11-03 10:34:11 UTC
 </div>
 </div>
-<script src="https://cdnjs.cloudflare.com/ajax/libs/prettify/r298/run_prettify.min.js"></script>
 </body>
 </html>
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