diff --git a/example/myzod/schemas.ts b/example/myzod/schemas.ts
index 36b9d2b7..2690d0ea 100644
--- a/example/myzod/schemas.ts
+++ b/example/myzod/schemas.ts
@@ -1,5 +1,5 @@
 import * as myzod from 'myzod'
-import { Admin, AttributeInput, ButtonComponentType, ComponentInput, DropDownComponentInput, EventArgumentInput, EventInput, EventOptionType, Guest, HttpInput, HttpMethod, LayoutInput, PageInput, PageType, User } from '../types'
+import { Admin, AttributeInput, ButtonComponentType, ComponentInput, DropDownComponentInput, EventArgumentInput, EventInput, EventOptionType, Guest, HttpInput, HttpMethod, InnerType, LayoutInput, OuterType, PageInput, PageType, User } from '../types'
 
 export const definedNonNullAnySchema = myzod.object({});
 
@@ -68,12 +68,26 @@ export function HttpInputSchema(): myzod.Type<HttpInput> {
 
 export const HttpMethodSchema = myzod.enum(HttpMethod);
 
+export function InnerTypeSchema(): myzod.Type<InnerType> {
+  return myzod.object({
+    __typename: myzod.literal('InnerType').optional(),
+    testScalar: definedNonNullAnySchema
+  })
+}
+
 export function LayoutInputSchema(): myzod.Type<LayoutInput> {
   return myzod.object({
     dropdown: myzod.lazy(() => DropDownComponentInputSchema().optional().nullable())
   })
 }
 
+export function OuterTypeSchema(): myzod.Type<OuterType> {
+  return myzod.object({
+    __typename: myzod.literal('OuterType').optional(),
+    inner: InnerTypeSchema().optional().nullable()
+  })
+}
+
 export function PageInputSchema(): myzod.Type<PageInput> {
   return myzod.object({
     attributes: myzod.array(myzod.lazy(() => AttributeInputSchema())).optional().nullable(),
diff --git a/example/test.graphql b/example/test.graphql
index 62450491..622f772f 100644
--- a/example/test.graphql
+++ b/example/test.graphql
@@ -15,6 +15,16 @@ type Guest {
 
 union UserKind = Admin | Guest
 
+type InnerType {
+  testScalar: MyScalar!
+}
+
+type OuterType {
+  inner: InnerType
+}
+
+scalar MyScalar
+
 type User {
   id: ID
   name: String
diff --git a/example/types.ts b/example/types.ts
index f8f3f610..fe9e83a7 100644
--- a/example/types.ts
+++ b/example/types.ts
@@ -13,6 +13,7 @@ export type Scalars = {
   Int: { input: number; output: number; }
   Float: { input: number; output: number; }
   Date: { input: any; output: any; }
+  MyScalar: { input: any; output: any; }
   URL: { input: any; output: any; }
 };
 
@@ -74,10 +75,20 @@ export enum HttpMethod {
   Post = 'POST'
 }
 
+export type InnerType = {
+  __typename?: 'InnerType';
+  testScalar: Scalars['MyScalar']['output'];
+};
+
 export type LayoutInput = {
   dropdown?: InputMaybe<DropDownComponentInput>;
 };
 
+export type OuterType = {
+  __typename?: 'OuterType';
+  inner?: Maybe<InnerType>;
+};
+
 export type PageInput = {
   attributes?: InputMaybe<Array<AttributeInput>>;
   date?: InputMaybe<Scalars['Date']['input']>;
diff --git a/example/yup/schemas.ts b/example/yup/schemas.ts
index 240f426c..2e8bd6dd 100644
--- a/example/yup/schemas.ts
+++ b/example/yup/schemas.ts
@@ -1,5 +1,5 @@
 import * as yup from 'yup'
-import { Admin, AttributeInput, ButtonComponentType, ComponentInput, DropDownComponentInput, EventArgumentInput, EventInput, EventOptionType, Guest, HttpInput, HttpMethod, LayoutInput, PageInput, PageType, User, UserKind } from '../types'
+import { Admin, AttributeInput, ButtonComponentType, ComponentInput, DropDownComponentInput, EventArgumentInput, EventInput, EventOptionType, Guest, HttpInput, HttpMethod, InnerType, LayoutInput, OuterType, PageInput, PageType, User, UserKind } from '../types'
 
 function union<T extends {}>(...schemas: ReadonlyArray<yup.Schema<T>>): yup.MixedSchema<T> {
   return yup.mixed<T>().test({
@@ -7,11 +7,11 @@ function union<T extends {}>(...schemas: ReadonlyArray<yup.Schema<T>>): yup.Mixe
   }).defined()
 }
 
-export function AdminSchema(): yup.ObjectSchema<Admin> {
+export function AdminSchema(): yup.Schema {
   return yup.object({
     __typename: yup.string<'Admin'>().optional(),
     lastModifiedAt: yup.mixed().nullable().optional()
-  })
+  }) satisfies yup.ObjectSchema<Admin>
 }
 
 export function AttributeInputSchema(): yup.ObjectSchema<AttributeInput> {
@@ -56,11 +56,11 @@ export function EventInputSchema(): yup.ObjectSchema<EventInput> {
 
 export const EventOptionTypeSchema = yup.string<EventOptionType>().oneOf([EventOptionType.Reload, EventOptionType.Retry]).defined();
 
-export function GuestSchema(): yup.ObjectSchema<Guest> {
+export function GuestSchema(): yup.Schema {
   return yup.object({
     __typename: yup.string<'Guest'>().optional(),
     lastLoggedIn: yup.mixed().nullable().optional()
-  })
+  }) satisfies yup.ObjectSchema<Guest>
 }
 
 export function HttpInputSchema(): yup.ObjectSchema<HttpInput> {
@@ -72,12 +72,26 @@ export function HttpInputSchema(): yup.ObjectSchema<HttpInput> {
 
 export const HttpMethodSchema = yup.string<HttpMethod>().oneOf([HttpMethod.Get, HttpMethod.Post]).defined();
 
+export function InnerTypeSchema(): yup.Schema {
+  return yup.object({
+    __typename: yup.string<'InnerType'>().optional(),
+    testScalar: yup.mixed().nonNullable()
+  }) satisfies yup.ObjectSchema<InnerType>
+}
+
 export function LayoutInputSchema(): yup.ObjectSchema<LayoutInput> {
   return yup.object({
     dropdown: yup.lazy(() => DropDownComponentInputSchema()).optional()
   })
 }
 
+export function OuterTypeSchema(): yup.Schema {
+  return yup.object({
+    __typename: yup.string<'OuterType'>().optional(),
+    inner: InnerTypeSchema().nullable().optional()
+  }) satisfies yup.ObjectSchema<OuterType>
+}
+
 export function PageInputSchema(): yup.ObjectSchema<PageInput> {
   return yup.object({
     attributes: yup.array(yup.lazy(() => AttributeInputSchema().nonNullable())).defined().nullable().optional(),
@@ -96,7 +110,7 @@ export function PageInputSchema(): yup.ObjectSchema<PageInput> {
 
 export const PageTypeSchema = yup.string<PageType>().oneOf([PageType.BasicAuth, PageType.Lp, PageType.Restricted, PageType.Service]).defined();
 
-export function UserSchema(): yup.ObjectSchema<User> {
+export function UserSchema(): yup.Schema {
   return yup.object({
     __typename: yup.string<'User'>().optional(),
     createdAt: yup.mixed().nullable().optional(),
@@ -106,7 +120,7 @@ export function UserSchema(): yup.ObjectSchema<User> {
     name: yup.string().defined().nullable().optional(),
     password: yup.string().defined().nullable().optional(),
     updatedAt: yup.mixed().nullable().optional()
-  })
+  }) satisfies yup.ObjectSchema<User>
 }
 
 export function UserKindSchema(): yup.MixedSchema<UserKind> {
diff --git a/example/zod/schemas.ts b/example/zod/schemas.ts
index 3b294d28..1877a1f2 100644
--- a/example/zod/schemas.ts
+++ b/example/zod/schemas.ts
@@ -1,5 +1,5 @@
 import { z } from 'zod'
-import { Admin, AttributeInput, ButtonComponentType, ComponentInput, DropDownComponentInput, EventArgumentInput, EventInput, EventOptionType, Guest, HttpInput, HttpMethod, LayoutInput, PageInput, PageType, User } from '../types'
+import { Admin, AttributeInput, ButtonComponentType, ComponentInput, DropDownComponentInput, EventArgumentInput, EventInput, EventOptionType, Guest, HttpInput, HttpMethod, InnerType, LayoutInput, OuterType, PageInput, PageType, User } from '../types'
 
 type Properties<T> = Required<{
   [K in keyof T]: z.ZodType<T[K], any, T[K]>;
@@ -76,12 +76,26 @@ export function HttpInputSchema(): z.ZodObject<Properties<HttpInput>> {
 
 export const HttpMethodSchema = z.nativeEnum(HttpMethod);
 
+export function InnerTypeSchema(): z.ZodObject<Properties<InnerType>> {
+  return z.object<Properties<InnerType>>({
+    __typename: z.literal('InnerType').optional(),
+    testScalar: definedNonNullAnySchema
+  })
+}
+
 export function LayoutInputSchema(): z.ZodObject<Properties<LayoutInput>> {
   return z.object<Properties<LayoutInput>>({
     dropdown: z.lazy(() => DropDownComponentInputSchema().nullish())
   })
 }
 
+export function OuterTypeSchema(): z.ZodObject<Properties<OuterType>> {
+  return z.object<Properties<OuterType>>({
+    __typename: z.literal('OuterType').optional(),
+    inner: InnerTypeSchema().nullish()
+  })
+}
+
 export function PageInputSchema(): z.ZodObject<Properties<PageInput>> {
   return z.object<Properties<PageInput>>({
     attributes: z.array(z.lazy(() => AttributeInputSchema())).nullish(),
diff --git a/src/yup/index.ts b/src/yup/index.ts
index fa319151..cb8c19d1 100644
--- a/src/yup/index.ts
+++ b/src/yup/index.ts
@@ -83,13 +83,13 @@ export const YupSchemaVisitor = (schema: GraphQLSchema, config: ValidationSchema
         return new DeclarationBlock({})
           .export()
           .asKind('function')
-          .withName(`${name}Schema(): yup.ObjectSchema<${name}>`)
+          .withName(`${name}Schema(): yup.Schema`)
           .withBlock(
             [
               indent(`return yup.object({`),
               indent(`__typename: yup.string<'${node.name.value}'>().optional(),`, 2),
               shape,
-              indent('})'),
+              indent(`}) satisfies yup.ObjectSchema<${name}>`),
             ].join('\n')
           ).string;
       }),
diff --git a/tests/yup.spec.ts b/tests/yup.spec.ts
index 4670fb76..125fc216 100644
--- a/tests/yup.spec.ts
+++ b/tests/yup.spec.ts
@@ -408,20 +408,23 @@ describe('yup', () => {
         {}
       );
       const wantContains = [
-        'export function AuthorSchema(): yup.ObjectSchema<Author> {',
+        'export function AuthorSchema(): yup.Schema {',
         "__typename: yup.string<'Author'>().optional(),",
         'books: yup.array(BookSchema().nullable()).defined().nullable().optional(),',
         'name: yup.string().defined().nullable().optional()',
+        '}) satisfies yup.ObjectSchema<Author>',
 
-        'export function BookSchema(): yup.ObjectSchema<Book> {',
+        'export function BookSchema(): yup.Schema {',
         "__typename: yup.string<'Book'>().optional(),",
         'author: AuthorSchema().nullable().optional(),',
         'title: yup.string().defined().nonNullable()',
+        '}) satisfies yup.ObjectSchema<Book>',
 
-        'export function Book2Schema(): yup.ObjectSchema<Book2> {',
+        'export function Book2Schema(): yup.Schema {',
         "__typename: yup.string<'Book2'>().optional(),",
         'author: AuthorSchema().nonNullable(),',
         'title: yup.string().defined().nullable().optional()',
+        '}) satisfies yup.ObjectSchema<Book2>',
       ];
       for (const wantContain of wantContains) {
         expect(result.content).toContain(wantContain);
@@ -497,7 +500,7 @@ describe('yup', () => {
         'updateInputId: yup.number().defined().nonNullable(),',
         'updateName: yup.string().defined().nonNullable()',
         // User
-        'export function UserSchema(): yup.ObjectSchema<User> {',
+        'export function UserSchema(): yup.Schema {',
         "__typename: yup.string<'User'>().optional(),",
         'id: yup.string().defined().nonNullable(),',
         'name: yup.string().defined().nullable().optional(),',
@@ -505,6 +508,7 @@ describe('yup', () => {
         'isMember: yup.boolean().defined().nullable().optional(),',
         'email: yup.string().email().defined().nullable().optional(),',
         'createdAt: yup.date().defined().nonNullable()',
+        '}) satisfies yup.ObjectSchema<User>',
       ];
       for (const wantContain of wantContains) {
         expect(result.content).toContain(wantContain);
@@ -573,11 +577,11 @@ describe('yup', () => {
       );
 
       const wantContains = [
-        'export function GeometrySchema(): yup.ObjectSchema<Geometry> {',
+        'export function GeometrySchema(): yup.Schema {',
         'return yup.object({',
         "__typename: yup.string<'Geometry'>().optional(),",
         'shape: ShapeSchema().nullable().optional()',
-        '})',
+        '}) satisfies yup.ObjectSchema<Geometry>',
       ];
       for (const wantContain of wantContains) {
         expect(result.content).toContain(wantContain);