diff --git a/test/functional/files/UpdateFileTabularTags.test.ts b/test/functional/files/UpdateFileTabularTags.test.ts
index d3adbc5b..a779904b 100644
--- a/test/functional/files/UpdateFileTabularTags.test.ts
+++ b/test/functional/files/UpdateFileTabularTags.test.ts
@@ -21,7 +21,7 @@ import { FileModel } from '../../../src/files/domain/models/FileModel'
 describe('execute', () => {
   const testCollectionAlias = 'updateFileMetadataFunctionalTest'
   let testDatasetIds: CreatedDatasetIdentifiers
-  const testTextFile4Name = 'test-file-4.tab'
+  const testTextFile4Name = 'test-file-4.tsv'
   const tabularTags = ['Event']
 
   beforeAll(async () => {
diff --git a/test/integration/collections/CollectionsRepository.test.ts b/test/integration/collections/CollectionsRepository.test.ts
index 94b62311..ec7a4483 100644
--- a/test/integration/collections/CollectionsRepository.test.ts
+++ b/test/integration/collections/CollectionsRepository.test.ts
@@ -910,7 +910,7 @@ describe('CollectionsRepository', () => {
 
   describe('getCollectionItems for published tabular file', () => {
     let testDatasetIds: CreatedDatasetIdentifiers
-    const testTextFile4Name = 'test-file-4.tab'
+    const testTextFile4Name = 'test-file-4.tsv'
     const testSubCollectionAlias = 'collectionsRepositoryTestSubCollection'
 
     beforeAll(async () => {
@@ -997,7 +997,7 @@ describe('CollectionsRepository', () => {
       // TODO: uncomment this test when https://github.com/IQSS/dataverse/issues/12027 is fixed
       //  const expectedDatasetCitationFragment = `Admin, Dataverse; Owner, Dataverse, ${currentYear}, "Dataset created using the createDataset use case`
       const expectedDatasetDescription = 'Dataset created using the createDataset use case'
-      const expectedFileName = 'test-file-4.tab'
+      const expectedFileName = 'test-file-4.tsv'
       const expectedCollectionsName = 'Scientific Research'
 
       expect(actualFilePreview.checksum?.type).toBe('MD5')
diff --git a/test/testHelpers/files/filesHelper.ts b/test/testHelpers/files/filesHelper.ts
index a4fce9ed..31b809a1 100644
--- a/test/testHelpers/files/filesHelper.ts
+++ b/test/testHelpers/files/filesHelper.ts
@@ -16,7 +16,7 @@ interface FileMetadata {
 export const testTextFile1Name = 'test-file-1.txt'
 export const testTextFile2Name = 'test-file-2.txt'
 export const testTextFile3Name = 'test-file-3.txt'
-export const testTabFile4Name = 'test-file-4.tab'
+export const testTabFile4Name = 'test-file-4.tsv'
 export const createFileModel = (): FileModel => {
   return {
     id: 1,
diff --git a/test/testHelpers/files/test-file-4.tab b/test/testHelpers/files/test-file-4.tsv
similarity index 100%
rename from test/testHelpers/files/test-file-4.tab
rename to test/testHelpers/files/test-file-4.tsv