diff --git a/implementations/javascript/packages/schema/rollup.config.js b/implementations/javascript/packages/schema/rollup.config.js
index d4e11db..4c931f9 100644
--- a/implementations/javascript/packages/schema/rollup.config.js
+++ b/implementations/javascript/packages/schema/rollup.config.js
@@ -40,5 +40,13 @@ export default [{
     file: 'dist/bin/preserves-schema-ts.js',
     format: 'commonjs',
   }],
-  external: ['fs', 'path', 'glob', 'yargs/yargs', '@preserves/core'],
+  external: [
+    '@preserves/core',
+    'chalk',
+    'fs',
+    'glob',
+    'minimatch',
+    'path',
+    'yargs/yargs',
+  ],
 }]