diff --git a/demo.html b/demo.html
index 92a1d63..1f84935 100644
--- a/demo.html
+++ b/demo.html
@@ -4,7 +4,7 @@
   <meta charset="UTF-8">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   <title>Google Maps Directions API</title>
-  <script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&libraries=places"></script>
+  <script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyBAtsxaRQmakZQsAOUPNx4N_Fh9m3IiqAg&libraries=places"></script>
 </head>
 <body>
   <div id="map" style="height: 400px;"></div>
