diff --git a/package.json b/package.json
index 346ef1fa7..3914c9a46 100644
--- a/package.json
+++ b/package.json
@@ -48,25 +48,23 @@
     "gulp": "4.0.2",
     "gulp-cached": "1.1.1",
     "gulp-clean-css": "4.3.0",
-    "gulp-concat-util": "0.5.5",
     "gulp-eol": "0.2.0",
     "gulp-eslint": "6.0.0",
     "gulp-expect-file": "1.0.2",
     "gulp-filter": "6.0.0",
     "gulp-header": "2.0.9",
     "gulp-less": "4.0.1",
-    "gulp-livereload": "4.0.2",
     "gulp-rename": "2.0.0",
     "gulp-replace": "1.0.0",
-    "gulp-rimraf": "1.0.0",
     "gulp-size": "3.0.0",
     "gulp-stripbom": "1.0.5",
     "gulp-terser": "^1.4.0",
     "gulp-util": "3.0.8",
-    "node-fs": "0.1.7",
-    "rimraf": "3.0.2"
+    "node-fs": "0.1.7"
   },
   "dependencies": {
+    "del": "^6.0.0",
+    "gulp-concat": "^2.6.1",
     "gulp-group-css-media-queries": "^1.2.2",
     "gulp-rollup-2": "^1.2.1",
     "rollup": "^2.38.0",