diff --git a/packages/backend/test/unit/AbuseReportNotificationService.ts b/packages/backend/test/unit/AbuseReportNotificationService.ts
index 1326003c5e..6d555326fb 100644
--- a/packages/backend/test/unit/AbuseReportNotificationService.ts
+++ b/packages/backend/test/unit/AbuseReportNotificationService.ts
@@ -149,9 +149,9 @@ describe('AbuseReportNotificationService', () => {
 	});
 
 	beforeEach(async () => {
-		root = await createUser({ username: 'root', usernameLower: 'root', isRoot: true });
-		alice = await createUser({ username: 'alice', usernameLower: 'alice', isRoot: false });
-		bob = await createUser({ username: 'bob', usernameLower: 'bob', isRoot: false });
+		root = await createUser({ username: 'root', usernameLower: 'root' });
+		alice = await createUser({ username: 'alice', usernameLower: 'alice' });
+		bob = await createUser({ username: 'bob', usernameLower: 'bob' });
 		systemWebhook1 = await createWebhook();
 		systemWebhook2 = await createWebhook();
 
diff --git a/packages/backend/test/unit/FlashService.ts b/packages/backend/test/unit/FlashService.ts
index 12ffaf3421..f2d9832f50 100644
--- a/packages/backend/test/unit/FlashService.ts
+++ b/packages/backend/test/unit/FlashService.ts
@@ -79,9 +79,9 @@ describe('FlashService', () => {
 		userProfilesRepository = app.get(DI.userProfilesRepository);
 		idService = app.get(IdService);
 
-		root = await createUser({ username: 'root', usernameLower: 'root', isRoot: true });
-		alice = await createUser({ username: 'alice', usernameLower: 'alice', isRoot: false });
-		bob = await createUser({ username: 'bob', usernameLower: 'bob', isRoot: false });
+		root = await createUser({ username: 'root', usernameLower: 'root' });
+		alice = await createUser({ username: 'alice', usernameLower: 'alice' });
+		bob = await createUser({ username: 'bob', usernameLower: 'bob' });
 	});
 
 	afterEach(async () => {
diff --git a/packages/backend/test/unit/SystemWebhookService.ts b/packages/backend/test/unit/SystemWebhookService.ts
index fee4acb305..61187e9f2a 100644
--- a/packages/backend/test/unit/SystemWebhookService.ts
+++ b/packages/backend/test/unit/SystemWebhookService.ts
@@ -97,7 +97,7 @@ describe('SystemWebhookService', () => {
 	}
 
 	async function beforeEachImpl() {
-		root = await createUser({ isRoot: true, username: 'root', usernameLower: 'root' });
+		root = await createUser({ username: 'root', usernameLower: 'root' });
 	}
 
 	async function afterEachImpl() {
diff --git a/packages/backend/test/unit/UserSearchService.ts b/packages/backend/test/unit/UserSearchService.ts
index 7ea325d420..66a7f39ff1 100644
--- a/packages/backend/test/unit/UserSearchService.ts
+++ b/packages/backend/test/unit/UserSearchService.ts
@@ -113,7 +113,7 @@ describe('UserSearchService', () => {
 	});
 
 	beforeEach(async () => {
-		root = await createUser({ username: 'root', usernameLower: 'root', isRoot: true });
+		root = await createUser({ username: 'root', usernameLower: 'root' });
 		alice = await createUser({ username: 'Alice', usernameLower: 'alice' });
 		alyce = await createUser({ username: 'Alyce', usernameLower: 'alyce' });
 		alycia = await createUser({ username: 'Alycia', usernameLower: 'alycia' });
diff --git a/packages/backend/test/unit/UserWebhookService.ts b/packages/backend/test/unit/UserWebhookService.ts
index db8f96df28..a2a85e9489 100644
--- a/packages/backend/test/unit/UserWebhookService.ts
+++ b/packages/backend/test/unit/UserWebhookService.ts
@@ -91,7 +91,7 @@ describe('UserWebhookService', () => {
 	}
 
 	async function beforeEachImpl() {
-		root = await createUser({ isRoot: true, username: 'root', usernameLower: 'root' });
+		root = await createUser({ username: 'root', usernameLower: 'root' });
 	}
 
 	async function afterEachImpl() {
diff --git a/packages/backend/test/unit/WebhookTestService.ts b/packages/backend/test/unit/WebhookTestService.ts
index be84ae9b84..45bc932469 100644
--- a/packages/backend/test/unit/WebhookTestService.ts
+++ b/packages/backend/test/unit/WebhookTestService.ts
@@ -88,8 +88,8 @@ describe('WebhookTestService', () => {
 	});
 
 	beforeEach(async () => {
-		root = await createUser({ username: 'root', usernameLower: 'root', isRoot: true });
-		alice = await createUser({ username: 'alice', usernameLower: 'alice', isRoot: false });
+		root = await createUser({ username: 'root', usernameLower: 'root' });
+		alice = await createUser({ username: 'alice', usernameLower: 'alice' });
 
 		userWebhookService.fetchWebhooks.mockReturnValue(Promise.resolve([
 			{ id: 'dummy-webhook', active: true, userId: alice.id } as MiWebhook,
diff --git a/packages/backend/test/unit/queue/processors/CheckModeratorsActivityProcessorService.ts b/packages/backend/test/unit/queue/processors/CheckModeratorsActivityProcessorService.ts
index d96e6b916a..07618e7762 100644
--- a/packages/backend/test/unit/queue/processors/CheckModeratorsActivityProcessorService.ts
+++ b/packages/backend/test/unit/queue/processors/CheckModeratorsActivityProcessorService.ts
@@ -316,7 +316,7 @@ describe('CheckModeratorsActivityProcessorService', () => {
 				createUser({}, { email: 'user2@example.com', emailVerified: false }),
 				createUser({}, { email: null, emailVerified: false }),
 				createUser({}, { email: 'user4@example.com', emailVerified: true }),
-				createUser({ isRoot: true }, { email: 'root@example.com', emailVerified: true }),
+				createUser({}, { email: 'root@example.com', emailVerified: true }),
 			]);
 
 			mockModeratorRole([user1, user2, user3, root]);
@@ -349,7 +349,7 @@ describe('CheckModeratorsActivityProcessorService', () => {
 				createUser({}, { email: 'user2@example.com', emailVerified: false }),
 				createUser({}, { email: null, emailVerified: false }),
 				createUser({}, { email: 'user4@example.com', emailVerified: true }),
-				createUser({ isRoot: true }, { email: 'root@example.com', emailVerified: true }),
+				createUser({}, { email: 'root@example.com', emailVerified: true }),
 			]);
 
 			mockModeratorRole([user1, user2, user3, root]);