diff --git a/package.json b/package.json
index 204bd0c..f93a0e5 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
     "grunt-contrib-copy": "^1.0.0",
     "grunt-contrib-requirejs": "^1.0.0",
     "grunt-contrib-watch": "^1.1.0",
-    "grunt-sass": "^3.1.0",
+    "grunt-sass": "^4.0.0",
     "grunt-shell": "^4.0.0",
     "grunt-terser": "^2.0.0",
     "imagemin": "^8.0.1",