diff --git a/themes/anna/layouts/partials/head.html b/themes/anna/layouts/partials/head.html
index d6726f0..1900525 100644
--- a/themes/anna/layouts/partials/head.html
+++ b/themes/anna/layouts/partials/head.html
@@ -7,5 +7,5 @@
     {{ $styles := resources.Get "sass/main.scss" | toCSS }}
     <link rel="stylesheet" href="{{ $styles.Permalink }}">
     <link rel="canonical" href="{{ .Permalink }}">
-    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/lightgallery.js@1.4.0/dist/css/lightgallery.min.css">
+    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/lightgallery.js@1.4.0/dist/css/lightgallery.min.css" integrity="sha256-s47mXWRWvrLQNL9VRQX0ykfkIVSLfNJuingF/SZztsM=" crossorigin="anonymous">
 </head>
diff --git a/themes/anna/layouts/portfolio/single.html b/themes/anna/layouts/portfolio/single.html
index 4e6a4a9..9f0210e 100644
--- a/themes/anna/layouts/portfolio/single.html
+++ b/themes/anna/layouts/portfolio/single.html
@@ -16,8 +16,8 @@
     </div>
   </article>
 </section>
-<script src="https://cdn.jsdelivr.net/npm/lightgallery.js@1.4.0/dist/js/lightgallery.min.js"></script>
-<script src="https://cdn.jsdelivr.net/npm/lg-zoom.js@1.3.0/dist/lg-zoom.min.js"></script>
+<script src="https://cdn.jsdelivr.net/npm/lightgallery.js@1.4.0/dist/js/lightgallery.min.js" integrity="sha256-0Zhc9IDI5elFpwJZlvdAM4u/6qlxi4qIOUlHDVl5wjU=" crossorigin="anonymous"></script>
+<script src="https://cdn.jsdelivr.net/npm/lg-zoom.js@1.3.0/dist/lg-zoom.min.js" integrity="sha256-pw9GIEB9jGoek+S5xfa2Uz/8dZVjZsIYVJxy3jK3qgI=" crossorigin="anonymous"></script>
 <script>
   lightGallery(document.getElementById('portfolio-gallery'));
 </script>