diff --git a/_layouts/default.html b/_layouts/default.html
index 30d06ad..c30e615 100644
--- a/_layouts/default.html
+++ b/_layouts/default.html
@@ -8,7 +8,7 @@
     <title>Tom Monck JR by tmonck</title>
     <link rel="stylesheet" href="assets/css/styles.css" />
     <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
-    <script src="//mozilla.github.io/pdf.js/build/pdf.mjs"></script>
+    <script src="//mozilla.github.io/pdf.js/build/pdf.mjs" type="module"></script>
     <!--[if lt IE 9]>
     <script src="//html5shiv.googlecode.com/svn/trunk/html5.js"></script>
     <![endif]-->
diff --git a/assets/js/renderPdf.js b/assets/js/renderPdf.js
index 6ca1d8b..5758bae 100644
--- a/assets/js/renderPdf.js
+++ b/assets/js/renderPdf.js
@@ -4,7 +4,7 @@ var url = 'assets/docs/TomMonckResume.pdf';
 var pdfjsLib = window['pdfjs-dist/build/pdf'];
 
 // The workerSrc property shall be specified.
-pdfjsLib.GlobalWorkerOptions.workerSrc = '//mozilla.github.io/pdf.js/build/pdf.worker.js';
+pdfjsLib.GlobalWorkerOptions.workerSrc = '//mozilla.github.io/pdf.js/build/pdf.worker.mjs';
 
 var pdfDoc = null,
     pageNum = 1,