diff --git a/examples/simple/package.json b/examples/simple/package.json
index ee73279dcb4..16660aa55a3 100644
--- a/examples/simple/package.json
+++ b/examples/simple/package.json
@@ -21,8 +21,6 @@
         "@babel/preset-env": "^7.1.0",
         "@babel/preset-react": "^7.0.0",
         "@babel/preset-typescript": "^7.1.0",
-        "@material-ui/core": "~1.5.1",
-        "@material-ui/icons": "~1.1.1",
         "babel-loader": "^8.0.4",
         "enzyme": "^3.8.0",
         "enzyme-adapter-react-16": "^1.7.1",
@@ -31,6 +29,17 @@
         "html-webpack-plugin": "~3.2.0",
         "ignore-not-found-export-plugin": "^1.0.1",
         "jest": "^23.6.0",
+        "serve": "~9.1.0",
+        "style-loader": "~0.20.3",
+        "wait-on": "^2.1.0",
+        "webpack": "~4.5.0",
+        "webpack-cli": "~2.0.13",
+        "webpack-dev-server": "~3.1.11"
+    },
+    "dependencies": {
+        "@material-ui/core": "~1.5.1",
+        "@material-ui/icons": "~1.1.1",
+        "@babel/polyfill": "^7.0.0",
         "ra-data-fakerest": "^2.0.0",
         "ra-input-rich-text": "^2.0.0",
         "ra-language-english": "^2.0.0",
@@ -41,15 +50,6 @@
         "ra-tree-ui-materialui": "^2.0.0",
         "react": "~16.3.1",
         "react-admin": "^2.0.0",
-        "react-dom": "~16.3.1",
-        "serve": "~9.1.0",
-        "style-loader": "~0.20.3",
-        "wait-on": "^2.1.0",
-        "webpack": "~4.5.0",
-        "webpack-cli": "~2.0.13",
-        "webpack-dev-server": "~3.1.11"
-    },
-    "dependencies": {
-        "@babel/polyfill": "^7.0.0"
+        "react-dom": "~16.3.1"
     }
 }