diff --git a/packages/react-scripts/config/jest/babelTransform.js b/packages/react-scripts/config/jest/babelTransform.js
index 02742e90c6c..067f434e0d6 100644
--- a/packages/react-scripts/config/jest/babelTransform.js
+++ b/packages/react-scripts/config/jest/babelTransform.js
@@ -11,5 +11,6 @@ const babelJest = require('babel-jest');
 
 module.exports = babelJest.createTransformer({
   presets: [require.resolve('babel-preset-react-app')],
+  plugins: [require.resolve('babel-plugin-relay')],
   babelrc: false,
 });
diff --git a/packages/react-scripts/package.json b/packages/react-scripts/package.json
index 116c317f9ab..c461954d1de 100644
--- a/packages/react-scripts/package.json
+++ b/packages/react-scripts/package.json
@@ -48,10 +48,10 @@
     "object-assign": "4.1.1",
     "postcss-flexbugs-fixes": "3.2.0",
     "postcss-loader": "2.0.6",
-    "react-error-overlay": "^1.0.9",
-    "sass-loader": "^6.0.6",
     "promise": "8.0.1",
     "react-dev-utils": "^4.1.0",
+    "react-error-overlay": "^2.0.2",
+    "sass-loader": "^6.0.6",
     "style-loader": "0.18.2",
     "sw-precache-webpack-plugin": "0.11.4",
     "url-loader": "0.5.9",
@@ -61,7 +61,7 @@
     "whatwg-fetch": "2.0.3"
   },
   "devDependencies": {
-    "babel-plugin-relay": "^1.1.0",
+    "babel-plugin-relay": "^1.4.1",
     "react": "^15.5.4",
     "react-dom": "^15.5.4"
   },