diff --git a/site/package-lock.json b/site/package-lock.json
index 1132b9f324..bde0e87f82 100644
--- a/site/package-lock.json
+++ b/site/package-lock.json
@@ -1281,9 +1281,9 @@
       }
     },
     "@sveltejs/site-kit": {
-      "version": "1.2.0",
-      "resolved": "https://registry.npmjs.org/@sveltejs/site-kit/-/site-kit-1.2.0.tgz",
-      "integrity": "sha512-C7puq+1so3fKPPZAnQJQlKfyCG6FsnSSFSS2LRIhWD8VK2FL5j8Eq7DIKSxUvWbGw1AsxnzO3dIHJWPB7fwjKg==",
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/@sveltejs/site-kit/-/site-kit-1.2.1.tgz",
+      "integrity": "sha512-5AhOCBcproHF5UbmuOIB9CiyAmG6BXOr2G4EjeeDz/tyo9myfnRKIgJSy26q8Zlw6TOlwxhzcAgvL5sgZF+IsA==",
       "dev": true,
       "requires": {
         "@sindresorhus/slugify": "^0.9.1",
diff --git a/site/package.json b/site/package.json
index 30075c9f37..2564fce2c6 100644
--- a/site/package.json
+++ b/site/package.json
@@ -36,7 +36,7 @@
     "@babel/preset-env": "^7.6.0",
     "@babel/runtime": "^7.6.0",
     "@sindresorhus/slugify": "^0.9.1",
-    "@sveltejs/site-kit": "^1.2.0",
+    "@sveltejs/site-kit": "^1.2.1",
     "@sveltejs/svelte-repl": "^0.2.0",
     "degit": "^2.1.4",
     "dotenv": "^8.1.0",
diff --git a/site/src/utils/highlight.js b/site/src/utils/highlight.js
index d9e4fe5ec8..124af2e6be 100644
--- a/site/src/utils/highlight.js
+++ b/site/src/utils/highlight.js
@@ -1,6 +1,7 @@
 import { langs } from '@sveltejs/site-kit/utils/markdown.js';
 import PrismJS from 'prismjs';
 import 'prismjs/components/prism-bash';
+import 'prismjs/components/prism-diff';
 import 'prism-svelte';
 
 export function highlight(source, lang) {