diff --git a/CHANGELOG.md b/CHANGELOG.md
index 60813c9..515b7be 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v0.1.3 (May 9, 2018)
+- Ensure we are shipping ES5 everywhere.
+
 ## v0.1.2 (April 3, 2018)
 - Update npm package to ship with three builds: `UMD`, `CommonJS` and `ES2015`
 
diff --git a/package.json b/package.json
index 68b96a6..22b2d10 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "commercecloud-ocapi-client",
-  "version": "0.1.2",
+  "version": "0.1.3",
   "description": "An ES6 JavaScript Client for Salesforce Open Commerce API",
   "license": "SEE LICENSE IN LICENSE",
   "main": "dist/commercecloud-ocapi-client.cjs.js",
@@ -20,7 +20,7 @@
     "lint:fix": "npm run lint:js -- --fix",
     "test": "NODE_ENV=test mocha --require babel-core/register $(find test/api -name '*.spec.js')",
     "prebuild": "npm run lint",
-    "build": "rollup -c",
+    "build": "NODE_ENV=production rollup -c",
     "prepack": "npm run build"
   },
   "dependencies": {
diff --git a/rollup.config.js b/rollup.config.js
index b4e1d14..282a0fc 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -22,8 +22,7 @@ export default [{
             browser: true,
         }),
         babel({
-            exclude: ['node_modules/**'],
-            externalHelpers: true
+            exclude: ['node_modules/**']
         })
     ]
 },
@@ -37,4 +36,9 @@ export default [{
         format: 'es'
     }],
     external: ['superagent', 'querystring'],
+    plugins: [
+        babel({
+            exclude: ['node_modules/**']
+        })
+    ]
 }]