diff --git a/src/index.ts b/src/index.ts
index 0bc4b69ff..e8226ad67 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -25,7 +25,7 @@ import Schema, {
   SchemaFieldDescription,
   SchemaDescription,
 } from './schema';
-import type { InferType, Message } from './types';
+import type { InferType, ISchema, Message, ValidateOptions } from './types';
 
 function addMethod<T extends AnySchema>(
   schemaType: (...arg: any[]) => T,
@@ -55,6 +55,7 @@ export type {
   AnyObject,
   InferType,
   InferType as Asserts,
+  ISchema,
   Message,
   AnySchema,
   MixedOptions,
@@ -66,6 +67,7 @@ export type {
   SchemaFieldDescription,
   SchemaDescription,
   LocaleObject,
+  ValidateOptions
 };
 
 export {