diff --git a/packages/form-js-playground/rollup.config.js b/packages/form-js-playground/rollup.config.js
index 2aef04da8..199d96ae7 100644
--- a/packages/form-js-playground/rollup.config.js
+++ b/packages/form-js-playground/rollup.config.js
@@ -64,6 +64,7 @@ export default [
       'classnames',
       'min-dom',
       'min-dash',
+      'lodash',
     ],
     onwarn,
   },
diff --git a/packages/form-js-viewer/rollup.config.js b/packages/form-js-viewer/rollup.config.js
index 4a16355ae..2f3dccb65 100644
--- a/packages/form-js-viewer/rollup.config.js
+++ b/packages/form-js-viewer/rollup.config.js
@@ -50,6 +50,7 @@ export default [
     ],
     external: [
       'min-dash',
+      'lodash',
       'big.js',
       'preact',
       'preact/jsx-runtime',