diff --git a/package.json b/package.json
index 8ece58ef9..d879bb6ac 100644
--- a/package.json
+++ b/package.json
@@ -16,13 +16,13 @@
     "grunt-contrib-connect": "~2.1.0",
     "grunt-contrib-copy": "1.0.x",
     "grunt-contrib-csslint": "~2.0.0",
-    "grunt-contrib-cssmin": "~3.0.0",
+    "grunt-contrib-cssmin": "~4.0.0",
     "grunt-eslint": "22.0.x",
-    "grunt-contrib-uglify": "4.0.1",
+    "grunt-contrib-uglify": "5.2.1",
     "grunt-contrib-watch": "~1.1.0",
     "grunt-newer": "~1.3.0",
     "grunt-open": "0.2.x",
-    "grunt-contrib-compress": "~1.6.0",
+    "grunt-contrib-compress": "~2.0.0",
     "snyk": "^1.321.0"
   },
   "engine": "node >= 8",