diff --git a/packages/react-scripts/package.json b/packages/react-scripts/package.json
index ac6dc41f3a3..0206cb639b4 100644
--- a/packages/react-scripts/package.json
+++ b/packages/react-scripts/package.json
@@ -23,7 +23,7 @@
     "react-scripts": "./bin/react-scripts.js"
   },
   "dependencies": {
-    "autoprefixer": "6.5.1",
+    "autoprefixer": "10.0.0",
     "babel-core": "6.17.0",
     "babel-eslint": "7.1.1",
     "babel-jest": "17.0.2",
@@ -33,7 +33,7 @@
     "chalk": "1.1.3",
     "connect-history-api-fallback": "1.3.0",
     "cross-spawn": "4.0.2",
-    "css-loader": "0.26.0",
+    "css-loader": "5.0.0",
     "detect-port": "1.0.1",
     "dotenv": "2.0.0",
     "eslint": "3.8.1",
@@ -54,7 +54,7 @@
     "json-loader": "0.5.4",
     "object-assign": "4.1.0",
     "path-exists": "2.1.0",
-    "postcss-loader": "1.0.0",
+    "postcss-loader": "4.0.0",
     "promise": "7.1.1",
     "react-dev-utils": "^0.4.2",
     "recursive-readdir": "2.1.0",