diff --git a/package.json b/package.json
index f857eee37d..2fd6879984 100644
--- a/package.json
+++ b/package.json
@@ -199,7 +199,6 @@
     "chalk": "^4.0.0",
     "cheerio": "1.0.0-rc.12",
     "cross-env": "^7.0.0",
-    "css-minimizer-webpack-plugin": "^1.3.0",
     "dekko": "^0.2.1",
     "dumi": "^2.0.2",
     "duplicate-package-checker-webpack-plugin": "^3.0.0",
@@ -221,7 +220,6 @@
     "fs-extra": "^11.0.0",
     "gh-pages": "^4.0.0",
     "glob": "^8.0.1",
-    "highlight.js": "^11.5.0",
     "http-server": "^14.0.0",
     "husky": "^8.0.1",
     "identity-obj-proxy": "^3.0.0",
@@ -239,10 +237,8 @@
     "jsdom": "^20.0.0",
     "jsonml-to-react-element": "^1.1.11",
     "jsonml.js": "^0.1.0",
-    "less-vars-to-js": "^1.3.0",
     "lint-staged": "^13.0.3",
     "lz-string": "^1.4.4",
-    "mini-css-extract-plugin": "^1.6.2",
     "mockdate": "^3.0.0",
     "open": "^8.0.1",
     "prettier": "^2.3.2",