diff --git a/src/modifiers/minArrayLength.ts b/src/modifiers/minArrayLength.ts
index af9150f..b1c4e53 100644
--- a/src/modifiers/minArrayLength.ts
+++ b/src/modifiers/minArrayLength.ts
@@ -1,6 +1,6 @@
 import { refine } from '../refine';
 
-import type { TupleOf } from '../types';
+import type { TupleOf } from '@typeofweb/utils';
 
 export const minArrayLength = <L extends number>(minLength: L) =>
   refine((value: readonly unknown[], t) => {
diff --git a/src/refine.ts b/src/refine.ts
index 9f1cda0..097631b 100644
--- a/src/refine.ts
+++ b/src/refine.ts
@@ -1,7 +1,8 @@
 import { unionToPrint } from './stringify';
 import { left, right, nextValid, nextNotValid } from './utils/either';
 
-import type { Either, If, Next, Pretty, SomeSchema } from './types';
+import type { Either, Next, SomeSchema } from './types';
+import type { If, Pretty } from '@typeofweb/utils';
 
 type Refinement<NextResult, Input, ExitEarlyResult> = (
   this: SomeSchema<any>,
diff --git a/src/validators/object.ts b/src/validators/object.ts
index 4739639..4d80c57 100644
--- a/src/validators/object.ts
+++ b/src/validators/object.ts
@@ -1,8 +1,10 @@
 /* eslint-disable functional/no-loop-statement */
+
 import { refine } from '../refine';
 import { schemaToString, objectToPrint, quote } from '../stringify';
 
-import type { SomeSchema, TypeOf, UndefinedToOptional, ErrorDataEntry } from '../types';
+import type { SomeSchema, TypeOf, ErrorDataEntry } from '../types';
+import type { UndefinedToOptional } from '@typeofweb/utils';
 
 export interface ObjectSchemaOptions {
   readonly allowUnknownKeys?: boolean;