diff --git a/packages/react-scripts/package.json b/packages/react-scripts/package.json
index 8e24165e88d..0818fb391e9 100644
--- a/packages/react-scripts/package.json
+++ b/packages/react-scripts/package.json
@@ -21,7 +21,7 @@
     "react-scripts": "./bin/react-scripts.js"
   },
   "dependencies": {
-    "autoprefixer": "7.1.6",
+    "autoprefixer": "10.0.0",
     "babel-core": "6.26.0",
     "babel-eslint": "7.2.3",
     "babel-jest": "20.0.3",
@@ -30,7 +30,7 @@
     "babel-runtime": "6.26.0",
     "case-sensitive-paths-webpack-plugin": "2.1.1",
     "chalk": "1.1.3",
-    "css-loader": "0.28.7",
+    "css-loader": "5.0.0",
     "dotenv": "4.0.0",
     "eslint": "4.10.0",
     "eslint-config-react-app": "^2.0.1",
@@ -45,8 +45,8 @@
     "html-webpack-plugin": "2.29.0",
     "jest": "20.0.4",
     "object-assign": "4.1.1",
-    "postcss-flexbugs-fixes": "3.2.0",
-    "postcss-loader": "2.0.8",
+    "postcss-flexbugs-fixes": "5.0.0",
+    "postcss-loader": "4.0.0",
     "promise": "8.0.1",
     "raf": "3.4.0",
     "react-dev-utils": "^4.2.1",