diff --git a/src/index.ts b/src/index.ts
index a9c9bb6..d2d64d3 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -12,3 +12,4 @@ module.exports.flatAsync = buildPkg;
 module.exports.buildPkg = buildPkg;
 
 export { sign, flat, signApp as signAsync, signApp, buildPkg as flatAsync, buildPkg };
+export * from './types';