diff --git a/packages/react-scripts/package.json b/packages/react-scripts/package.json
index 17a1c2fe59a..75ec9710e5f 100644
--- a/packages/react-scripts/package.json
+++ b/packages/react-scripts/package.json
@@ -45,7 +45,7 @@
     "eslint-plugin-jsx-a11y": "4.0.0",
     "eslint-plugin-react": "6.4.1",
     "extract-text-webpack-plugin": "2.0.0",
-    "file-loader": "0.10.0",
+    "file-loader": "0.10.1",
     "fs-extra": "0.30.0",
     "html-webpack-plugin": "2.28.0",
     "http-proxy-middleware": "0.17.3",
@@ -53,11 +53,11 @@
     "object-assign": "4.1.1",
     "postcss-loader": "1.3.1",
     "promise": "7.1.1",
-    "react-dev-utils": "^0.5.1",
+    "react-dev-utils": "^12.0.0",
     "style-loader": "0.13.1",
-    "url-loader": "0.5.7",
+    "url-loader": "0.5.8",
     "webpack": "2.2.1",
-    "webpack-dev-server": "2.4.1",
+    "webpack-dev-server": "4.0.0",
     "webpack-manifest-plugin": "1.1.0",
     "whatwg-fetch": "2.0.2"
   },