diff --git a/packages/backend/src/core/WebhookTestService.ts b/packages/backend/src/core/WebhookTestService.ts
index 5aaea06423..c4210fbcf5 100644
--- a/packages/backend/src/core/WebhookTestService.ts
+++ b/packages/backend/src/core/WebhookTestService.ts
@@ -399,7 +399,7 @@ export class WebhookTestService {
 				break;
 			}
 			case 'follow': {
-				send(wrapBodyEnum('user', toPackedUserDetailedNotMe(dummyUser2)));
+				send(wrapBodyEnum('user', toPackedUserDetailedNotMe(dummyUser1)));
 				break;
 			}
 			case 'followed': {
@@ -407,7 +407,7 @@ export class WebhookTestService {
 				break;
 			}
 			case 'unfollow': {
-				send(wrapBodyEnum('user', toPackedUserDetailedNotMe(dummyUser2)));
+				send(wrapBodyEnum('user', toPackedUserDetailedNotMe(dummyUser3)));
 				break;
 			}
 			case 'reaction': {
diff --git a/packages/backend/src/models/json-schema/user-webhook.ts b/packages/backend/src/models/json-schema/user-webhook.ts
index 9871181225..aaf8a6afc8 100644
--- a/packages/backend/src/models/json-schema/user-webhook.ts
+++ b/packages/backend/src/models/json-schema/user-webhook.ts
@@ -22,7 +22,7 @@ export const packedUserWebhookUserBodySchema = {
 	properties: {
 		user: {
 			type: 'object',
-			ref: 'UserDetailedNotMe',
+			ref: 'UserLite',
 			optional: false,
 			nullable: false,
 		},
diff --git a/packages/backend/test/unit/WebhookTestService.ts b/packages/backend/test/unit/WebhookTestService.ts
index caffe67ec7..29867af409 100644
--- a/packages/backend/test/unit/WebhookTestService.ts
+++ b/packages/backend/test/unit/WebhookTestService.ts
@@ -159,7 +159,7 @@ describe('WebhookTestService', () => {
 			const calls = queueService.userWebhookDeliver.mock.calls[0];
 			expect((calls[0] as any).id).toBe('dummy-webhook');
 			expect(calls[1]).toBe('follow');
-			expect((calls[2] as Packed<'UserWebhookUserBody'>).user.id).toBe('dummy-user-2');
+			expect((calls[2] as Packed<'UserWebhookUserBody'>).user.id).toBe('dummy-user-1');
 		});
 
 		test('followed', async () => {
@@ -177,7 +177,7 @@ describe('WebhookTestService', () => {
 			const calls = queueService.userWebhookDeliver.mock.calls[0];
 			expect((calls[0] as any).id).toBe('dummy-webhook');
 			expect(calls[1]).toBe('unfollow');
-			expect((calls[2] as Packed<'UserWebhookUserBody'>).user.id).toBe('dummy-user-2');
+			expect((calls[2] as Packed<'UserWebhookUserBody'>).user.id).toBe('dummy-user-3');
 		});
 
 		test('reaction', async () => {
diff --git a/packages/misskey-js/src/autogen/types.ts b/packages/misskey-js/src/autogen/types.ts
index 3554593110..5f9b4316f3 100644
--- a/packages/misskey-js/src/autogen/types.ts
+++ b/packages/misskey-js/src/autogen/types.ts
@@ -4016,7 +4016,7 @@ export type components = {
     UserWebhookBody: OneOf<[{
       note: components['schemas']['Note'];
     }, {
-      user: components['schemas']['UserDetailedNotMe'];
+      user: components['schemas']['UserLite'];
     }, {
       note: components['schemas']['Note'];
       reaction: {
@@ -4029,7 +4029,7 @@ export type components = {
       note: components['schemas']['Note'];
     };
     UserWebhookUserBody: {
-      user: components['schemas']['UserDetailedNotMe'];
+      user: components['schemas']['UserLite'];
     };
     UserWebhookReactionBody: {
       note: components['schemas']['Note'];