diff --git a/e2e/__tests__/fatalWorkerError.test.ts b/e2e/__tests__/fatalWorkerError.test.ts
index 4b8841c22d53..57635a72f740 100644
--- a/e2e/__tests__/fatalWorkerError.test.ts
+++ b/e2e/__tests__/fatalWorkerError.test.ts
@@ -15,7 +15,7 @@ const DIR = path.resolve(os.tmpdir(), 'fatal-worker-error');
 beforeEach(() => cleanup(DIR));
 afterAll(() => cleanup(DIR));
 
-const NUMBER_OF_TESTS_TO_FORCE_USING_WORKERS = 25;
+const NUMBER_OF_TESTS_TO_FORCE_USING_WORKERS = 40;
 
 test('fails a test that terminates the worker with a fatal error', () => {
   const testFiles = {