diff --git a/package.json b/package.json
index 921d5c3..500214e 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
     "fetch-ie8": "^1.5.0",
     "file-loader": "^0.11.1",
     "html-webpack-plugin": "^2.28.0",
-    "less": "^2.7.2",
+    "less": "^3.0.2",
     "less-loader": "^4.0.2",
     "optimize-css-assets-webpack-plugin": "^1.3.1",
     "react": "^15.4.2",
@@ -40,7 +40,7 @@
     "svg-sprite-loader": "^0.3.0",
     "url-loader": "^0.5.8",
     "webpack": "3.0.0",
-    "webpack-dev-server": "2.5.0",
+    "webpack-dev-server": "4.0.0",
     "whatwg-fetch": "^2.0.3"
   },
   "devDependencies": {