diff --git a/packages/react-scripts/package.json b/packages/react-scripts/package.json
index e5008ca406d..b47a20e0414 100644
--- a/packages/react-scripts/package.json
+++ b/packages/react-scripts/package.json
@@ -23,7 +23,7 @@
   "dependencies": {
     "@babel/core": "7.0.0-beta.46",
     "@babel/runtime": "7.0.0-beta.46",
-    "autoprefixer": "8.5.0",
+    "autoprefixer": "10.0.0",
     "babel-core": "7.0.0-bridge.0",
     "babel-eslint": "8.2.3",
     "babel-jest": "22.4.3",
@@ -33,7 +33,7 @@
     "bfj": "5.2.0",
     "case-sensitive-paths-webpack-plugin": "2.1.2",
     "chalk": "2.4.1",
-    "css-loader": "0.28.11",
+    "css-loader": "5.0.0",
     "dotenv": "5.0.1",
     "dotenv-expand": "4.2.0",
     "eslint": "4.19.1",
@@ -53,9 +53,9 @@
     "jest": "22.4.3",
     "mini-css-extract-plugin": "^0.4.0",
     "object-assign": "4.1.1",
-    "postcss-flexbugs-fixes": "3.3.1",
+    "postcss-flexbugs-fixes": "5.0.0",
     "optimize-css-assets-webpack-plugin": "^4.0.1",
-    "postcss-loader": "2.1.5",
+    "postcss-loader": "4.0.0",
     "promise": "8.0.1",
     "raf": "3.4.0",
     "react-dev-utils": "^5.0.0",