diff --git a/dev-support/flaky-dashboard-template.html b/dev-support/flaky-dashboard-template.html
index d23ae0099a7..49ab9b063c8 100644
--- a/dev-support/flaky-dashboard-template.html
+++ b/dev-support/flaky-dashboard-template.html
@@ -41,7 +41,7 @@
     </style>
 </head>
 <body>
-    <script src="http://d3js.org/d3.v3.min.js"></script>
+    <script src="https://d3js.org/d3.v3.min.js"></script>
     <script>
         var width = 300;
         var height = 25;
