diff --git a/packages/vanilla/rollup.config.js b/packages/vanilla/rollup.config.js
index db2c9fbaf..7479309a4 100644
--- a/packages/vanilla/rollup.config.js
+++ b/packages/vanilla/rollup.config.js
@@ -7,7 +7,7 @@ const packageJson = require('./package.json');
 const baseConfig = {
   input: 'src/index.ts',
   external: [
-    ...Object.keys(packageJson.dependencies),
+    ...Object.keys(packageJson.dependencies ?? {}),
     ...Object.keys(packageJson.peerDependencies),
     'react',
     /^lodash\/.*/,