diff --git a/examples/redux/package.json b/examples/redux/package.json
index fc18217..bfd0ab3 100644
--- a/examples/redux/package.json
+++ b/examples/redux/package.json
@@ -23,6 +23,7 @@
     "babel-core": "6.8.0",
     "babel-loader": "6.2.4",
     "babel-plugin-transform-decorators-legacy": "1.3.4",
+    "babel-polyfill": "6.9.0",
     "babel-preset-es2015": "6.6.0",
     "babel-preset-react": "6.5.0",
     "babel-preset-stage-1": "6.5.0",
diff --git a/examples/redux/webpack.config.js b/examples/redux/webpack.config.js
index e6d138c..19637b4 100644
--- a/examples/redux/webpack.config.js
+++ b/examples/redux/webpack.config.js
@@ -5,7 +5,7 @@ module.exports = {
 
   devtool: 'source-map',
 
-  entry: path.join(__dirname, 'client.js'),
+  entry: ['babel-polyfill', path.join(__dirname, 'client.js')],
 
   output: {
     path: path.join(__dirname, 'build'),
diff --git a/examples/simple/package.json b/examples/simple/package.json
index 76318c1..5ed4a5b 100644
--- a/examples/simple/package.json
+++ b/examples/simple/package.json
@@ -21,6 +21,7 @@
     "babel-core": "6.8.0",
     "babel-loader": "6.2.4",
     "babel-plugin-transform-decorators-legacy": "1.3.4",
+    "babel-polyfill": "6.9.0",
     "babel-preset-es2015": "6.6.0",
     "babel-preset-react": "6.5.0",
     "babel-preset-stage-1": "6.5.0",
diff --git a/examples/simple/webpack.config.js b/examples/simple/webpack.config.js
index e6d138c..19637b4 100644
--- a/examples/simple/webpack.config.js
+++ b/examples/simple/webpack.config.js
@@ -5,7 +5,7 @@ module.exports = {
 
   devtool: 'source-map',
 
-  entry: path.join(__dirname, 'client.js'),
+  entry: ['babel-polyfill', path.join(__dirname, 'client.js')],
 
   output: {
     path: path.join(__dirname, 'build'),