diff --git a/package.json b/package.json
index ecfe37720..bf1f90baf 100644
--- a/package.json
+++ b/package.json
@@ -21,13 +21,13 @@
     "react-scripts-ts": "./bin/react-scripts-ts.js"
   },
   "dependencies": {
-    "autoprefixer": "7.1.6",
+    "autoprefixer": "10.0.0",
     "babel-jest": "20.0.3",
     "babel-loader": "7.1.2",
     "babel-preset-react-app": "^3.1.2",
     "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",
     "dotenv-expand": "4.2.0",
     "extract-text-webpack-plugin": "3.0.2",
@@ -37,8 +37,8 @@
     "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",
     "source-map-loader": "^0.2.1",