diff --git a/src/index.ts b/src/index.ts
index 89afcb96..d4c38347 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -4,3 +4,4 @@ export * from './structs/coercions.js';
 export * from './structs/refinements.js';
 export * from './structs/types.js';
 export * from './structs/utilities.js';
+export type { ObjectSchema, Optionalize, Simplify } from './utils.js';