diff --git a/packages/backend/test/unit/NoteCreateService.ts b/packages/backend/test/unit/NoteCreateService.ts
index 6010fcee8a3c..1a3052328e7e 100644
--- a/packages/backend/test/unit/NoteCreateService.ts
+++ b/packages/backend/test/unit/NoteCreateService.ts
@@ -61,6 +61,9 @@ describe('NoteCreateService', () => {
 			replyUserHost: null,
 			renoteUserId: null,
 			renoteUserHost: null,
+			updatedAt: null,
+			updatedAtHistory: [],
+			noteEditHistory: [],
 		};
 
 		const poll: IPoll = {
diff --git a/packages/backend/test/unit/activitypub.ts b/packages/backend/test/unit/activitypub.ts
index 3241bcabe963..b6fa7a7f35cf 100644
--- a/packages/backend/test/unit/activitypub.ts
+++ b/packages/backend/test/unit/activitypub.ts
@@ -299,7 +299,7 @@ describe('ActivityPub', () => {
 				await createRandomRemoteUser(resolver, personService),
 				imageObject,
 			);
-			assert.ok(!driveFile.isLink);
+			assert.ok(driveFile && !driveFile.isLink);
 
 			const sensitiveImageObject: IApDocument = {
 				type: 'Document',
@@ -312,7 +312,7 @@ describe('ActivityPub', () => {
 				await createRandomRemoteUser(resolver, personService),
 				sensitiveImageObject,
 			);
-			assert.ok(!sensitiveDriveFile.isLink);
+			assert.ok(sensitiveDriveFile && !sensitiveDriveFile.isLink);
 		});
 
 		test('cacheRemoteFiles=false disables caching', async () => {
@@ -328,7 +328,7 @@ describe('ActivityPub', () => {
 				await createRandomRemoteUser(resolver, personService),
 				imageObject,
 			);
-			assert.ok(driveFile.isLink);
+			assert.ok(driveFile && driveFile.isLink);
 
 			const sensitiveImageObject: IApDocument = {
 				type: 'Document',
@@ -407,7 +407,7 @@ describe('ActivityPub', () => {
 				await createRandomRemoteUser(resolver, personService),
 				imageObject,
 			);
-			assert.ok(!driveFile.isLink);
+			assert.ok(driveFile && !driveFile.isLink);
 
 			const sensitiveImageObject: IApDocument = {
 				type: 'Document',
@@ -486,7 +486,7 @@ describe('ActivityPub', () => {
 				await createRandomRemoteUser(resolver, personService),
 				imageObject,
 			);
-			assert.ok(!driveFile.isLink);
+			assert.ok(driveFile && !driveFile.isLink);
 
 			const sensitiveImageObject: IApDocument = {
 				type: 'Document',
diff --git a/packages/backend/test/unit/misc/is-renote.ts b/packages/backend/test/unit/misc/is-renote.ts
index 0c439d39f998..e0db31e22286 100644
--- a/packages/backend/test/unit/misc/is-renote.ts
+++ b/packages/backend/test/unit/misc/is-renote.ts
@@ -44,6 +44,9 @@ const base: MiNote = {
 	replyUserHost: null,
 	renoteUserId: null,
 	renoteUserHost: null,
+	updatedAt: null,
+	updatedAtHistory: [],
+	noteEditHistory: [],
 };
 
 describe('misc:is-renote', () => {