diff --git a/rollup.config.js b/rollup.config.js
index 79e7967..d34f3cc 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -1,16 +1,17 @@
-const typescript = require("rollup-plugin-typescript2");
-const pkg = require("./package.json");
+const typescript = require('rollup-plugin-typescript2');
+const pkg = require('./package.json');
 
 module.exports = {
-  input: "src/index.ts",
+  input: 'src/index.ts',
   output: [
     {
       file: pkg.main,
-      format: "cjs",
-      exports: "named",
+      format: 'cjs',
+      exports: 'named',
       sourcemap: true,
       strict: false,
     },
   ],
   plugins: [typescript()],
+  external: ['@pulumi/pulumi'],
 };