diff --git a/lib/gzipContentTypes.js b/lib/gzipContentTypes.js
index <HASH>..<HASH> 100644
--- a/lib/gzipContentTypes.js
+++ b/lib/gzipContentTypes.js
@@ -1,7 +1,9 @@
 module.exports = [
     'application/javascript',
     'application/json',
+    'application/manifest+json',
     'application/xml',
+    'image/svg+xml',
     'text/css',
     'text/html',
     'text/javascript',
add Content-Types to gzip SVG images and web-app manifests