diff --git a/bin/build-inline-script.js b/bin/build-inline-script.js
index b2cb3f2..d67c951 100644
--- a/bin/build-inline-script.js
+++ b/bin/build-inline-script.js
@@ -28,11 +28,13 @@ export async function buildInlineScript () {
       })
     ]
   })
-  let { code, map } = await bundle.generate({
+  let { output } = await bundle.generate({
     format: 'iife',
     sourcemap: true
   })
 
+  let { code, map } = output[0]
+
   let fullCode = `${code}//# sourceMappingURL=/inline-script.js.map`
   let checksum = crypto.createHash('sha256').update(fullCode).digest('base64')
 
diff --git a/package-lock.json b/package-lock.json
index 6e7189f..0a137b7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -7997,12 +7997,20 @@
       }
     },
     "rollup": {
-      "version": "0.68.0",
-      "resolved": "https://registry.npmjs.org/rollup/-/rollup-0.68.0.tgz",
-      "integrity": "sha512-UbmntCf8QBlOqJnwsNWQCI0oonHOgs9y1OLoO8BHf2r8gCyRLp3JzLHXARJpsNDAS08Qm3LDjzyWma5sqnCxDQ==",
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/rollup/-/rollup-1.0.0.tgz",
+      "integrity": "sha512-LV6Qz+RkuDAfxr9YopU4k5o5P/QA7YNq9xi2Ug2IqOmhPt9sAm89vh3SkNtFok3bqZHX54eMJZ8F68HPejgqtw==",
       "requires": {
         "@types/estree": "0.0.39",
-        "@types/node": "*"
+        "@types/node": "*",
+        "acorn": "^6.0.4"
+      },
+      "dependencies": {
+        "acorn": {
+          "version": "6.0.4",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.0.4.tgz",
+          "integrity": "sha512-VY4i5EKSKkofY2I+6QLTbTTN/UvEQPCo6eiwzzSaSWfpaDhOmStMCMod6wmuPciNq+XS0faCglFu2lHZpdHUtg=="
+        }
       }
     },
     "rollup-plugin-replace": {
diff --git a/package.json b/package.json
index 5d2e376..4fe1ccc 100644
--- a/package.json
+++ b/package.json
@@ -82,7 +82,7 @@
     "quick-lru": "^2.0.0",
     "remount": "^0.9.3",
     "requestidlecallback": "^0.3.0",
-    "rollup": "^0.68.0",
+    "rollup": "^1.0.0",
     "rollup-plugin-replace": "^2.1.0",
     "rollup-plugin-terser": "^3.0.0",
     "sapper": "github:nolanlawson/sapper#nolan/sw-index-html-built",