diff --git a/site/guide.html b/site/guide.html
index de72961e6..2a9224a13 100644
--- a/site/guide.html
+++ b/site/guide.html
@@ -32,7 +32,6 @@
         </div>
     </section>
 
-    <script src="https://unpkg.com/showdown/dist/showdown.min.js"></script>
     <script src="guide.js"></script>
 </body>