diff --git a/themes/yilia/package.json b/themes/yilia/package.json
old mode 100755
new mode 100644
index 288e6235f..9514a11bc
--- a/themes/yilia/package.json
+++ b/themes/yilia/package.json
@@ -30,7 +30,7 @@
     "dom101": "^1.3.0",
     "extract-text-webpack-plugin": "^1.0.1",
     "html-webpack-plugin": "^2.24.1",
-    "node-sass": "^3.9.3",
+    "node-sass": "^4.14.1",
     "postcss-loader": "^1.0.0",
     "sass-loader": "^4.0.2",
     "style-loader": "^0.13.1",