Index: src/sunstone/public/package.json
--- src/sunstone/public/package.json
+++ src/sunstone/public/package.json
@@ -6,7 +6,7 @@
     "grunt-cli": "1.3.2",
     "grunt-contrib-requirejs": "1.0.0",
     "grunt-contrib-watch": "1.1.0",
-    "grunt-sass": "2.1.0",
-    "node-sass": "4.14.1"
+    "grunt-sass": "3.1.0",
+    "node-sass": "7.0.1"
   }
 }