diff --git a/api.js b/api.js
index 9746681..719e270 100644
--- a/api.js
+++ b/api.js
@@ -1 +1 @@
-module.exports = require('./dist/api.ts.js');
\ No newline at end of file
+module.exports = require('./dist/api.js');
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index 070086a..dfbec47 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5935,9 +5935,9 @@
       }
     },
     "rollup": {
-      "version": "0.59.4",
-      "resolved": "https://registry.npmjs.org/rollup/-/rollup-0.59.4.tgz",
-      "integrity": "sha512-ISiMqq/aJa+57QxX2MRcvLESHdJ7wSavmr6U1euMr+6UgFe6KM+3QANrYy8LQofwhTC1I7BcAdlLnDiaODs1BA==",
+      "version": "0.65.0",
+      "resolved": "https://registry.npmjs.org/rollup/-/rollup-0.65.0.tgz",
+      "integrity": "sha512-en95i7zwW5IiWay6DR/6QV8TxO2LvWuCjHYDcgP96oVG/gPnWWzsxNViObhoJUs17bAj2RgB67WuBuGmysZZcw==",
       "dev": true,
       "requires": {
         "@types/estree": "0.0.39",
diff --git a/package.json b/package.json
index 54edf36..24fee69 100644
--- a/package.json
+++ b/package.json
@@ -2,13 +2,12 @@
   "name": "sapper",
   "version": "0.17.1",
   "description": "Military-grade apps, engineered by Svelte",
-  "main": "dist/middleware.ts.js",
+  "main": "dist/middleware.js",
   "bin": {
     "sapper": "./sapper"
   },
   "files": [
     "*.js",
-    "*.ts.js",
     "runtime",
     "webpack",
     "sapper",
@@ -49,7 +48,7 @@
     "pretty-ms": "^3.1.0",
     "require-relative": "^0.8.7",
     "rimraf": "^2.6.2",
-    "rollup": "^0.59.2",
+    "rollup": "^0.65.0",
     "rollup-plugin-commonjs": "^9.1.3",
     "rollup-plugin-json": "^3.0.0",
     "rollup-plugin-node-resolve": "^3.3.0",
diff --git a/rollup.config.js b/rollup.config.js
index 17c3bc7..c74d63d 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -52,7 +52,6 @@ export default [
 				typescript: require('typescript')
 			})
 		],
-		experimentalCodeSplitting: true,
-		experimentalDynamicImport: true
+		experimentalCodeSplitting: true
 	}
 ];
\ No newline at end of file
diff --git a/rollup.js b/rollup.js
index b37e9ab..41b850d 100644
--- a/rollup.js
+++ b/rollup.js
@@ -1 +1 @@
-module.exports = require('./dist/rollup.ts.js');
\ No newline at end of file
+module.exports = require('./dist/rollup.js');
\ No newline at end of file
diff --git a/sapper b/sapper
index 72c1eca..e6f3430 100755
--- a/sapper
+++ b/sapper
@@ -1,2 +1,2 @@
 #!/usr/bin/env node
-require('./dist/cli.ts.js');
\ No newline at end of file
+require('./dist/cli.js');
\ No newline at end of file
diff --git a/test/app/app/server.js b/test/app/app/server.js
index f09d318..430853c 100644
--- a/test/app/app/server.js
+++ b/test/app/app/server.js
@@ -2,7 +2,7 @@ import fs from 'fs';
 import { resolve } from 'url';
 import express from 'express';
 import serve from 'serve-static';
-import sapper from '../../../dist/middleware.ts.js';
+import sapper from '../../../dist/middleware.js';
 import { Store } from 'svelte/store.js';
 import { manifest } from './manifest/server.js';
 
diff --git a/webpack.js b/webpack.js
index bb688ff..8e67b99 100644
--- a/webpack.js
+++ b/webpack.js
@@ -1,2 +1,2 @@
-// TODO write to this file, instead of webpack.ts.js
-module.exports = require('./dist/webpack.ts.js');
\ No newline at end of file
+// TODO write to this file, instead of webpack.js
+module.exports = require('./dist/webpack.js');
\ No newline at end of file
diff --git a/webpack/config.js b/webpack/config.js
index 6483555..83dcd37 100644
--- a/webpack/config.js
+++ b/webpack/config.js
@@ -1,2 +1,2 @@
 // TODO deprecate this file in favour of sapper/webpack.js
-module.exports = require('../dist/webpack.ts.js');
\ No newline at end of file
+module.exports = require('../dist/webpack.js');
\ No newline at end of file