diff --git a/reference/html/README.html b/reference/html/README.html
index 41f4ec82..6b16b91c 100644
--- a/reference/html/README.html
+++ b/reference/html/README.html
@@ -654,7 +654,7 @@ Remember to set the <code>Scan Scope</code> to <code>All sources</code> since we
 </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>
diff --git a/reference/html/appendix.html b/reference/html/appendix.html
index 7555f564..cca7a393 100644
--- a/reference/html/appendix.html
+++ b/reference/html/appendix.html
@@ -560,7 +560,7 @@ Also, you can define your own properties.
 </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>
diff --git a/reference/html/index.html b/reference/html/index.html
index c6224cf8..770287ad 100644
--- a/reference/html/index.html
+++ b/reference/html/index.html
@@ -3919,7 +3919,7 @@ The mapper is a <code>Function</code> that takes the incoming <code>ResponseEnti
 </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>
diff --git a/reference/html/intro.html b/reference/html/intro.html
index 07ae6f08..2cd9d0d8 100644
--- a/reference/html/intro.html
+++ b/reference/html/intro.html
@@ -123,7 +123,7 @@ $(globalSwitch);
 </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>
diff --git a/reference/html/sagan-boot.html b/reference/html/sagan-boot.html
index d088589e..fc29fad9 100644
--- a/reference/html/sagan-boot.html
+++ b/reference/html/sagan-boot.html
@@ -117,7 +117,7 @@ $(globalSwitch);
 </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>
diff --git a/reference/html/sagan-index.html b/reference/html/sagan-index.html
index 9d2379ca..e9b183c4 100644
--- a/reference/html/sagan-index.html
+++ b/reference/html/sagan-index.html
@@ -203,7 +203,7 @@ public class DemogatewayApplication {
 </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>
diff --git a/reference/html/spring-cloud-gateway.html b/reference/html/spring-cloud-gateway.html
index c6224cf8..770287ad 100644
--- a/reference/html/spring-cloud-gateway.html
+++ b/reference/html/spring-cloud-gateway.html
@@ -3919,7 +3919,7 @@ The mapper is a <code>Function</code> that takes the incoming <code>ResponseEnti
 </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>