diff --git a/package.json b/package.json
index 151316232d237640a1915b4e97e9c92d9e5902bf..80d315df2ba04fba7951c04d303782ec4438faaf 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,7 @@
     "url": "https://vufind.org/jira"
   },
   "dependencies": {
-    "grunt": "^0.4.5",
+    "grunt": "^1.0.0",
     "grunt-sass": "^1.0.0",
     "grunt-contrib-less": "1.3.0",
     "grunt-less-to-sass": "0.0.10",