diff --git a/package.json b/package.json
index 011c1a4..a6cd6a0 100644
--- a/package.json
+++ b/package.json
@@ -50,7 +50,7 @@
     "grunt": "~1.6.0",
     "grunt-contrib-watch": "^1.1.0",
     "grunt-replace": "~2.0.2",
-    "grunt-sass": "^3.1.0",
+    "grunt-sass": "^4.0.0",
     "grunt-wp-i18n": "^1.0.3",
     "node-sass": "^9.0.0"
   }