diff --git a/types/jest/index.d.ts b/types/jest/index.d.ts
index 43768c629b..795ccb4739 100644
--- a/types/jest/index.d.ts
+++ b/types/jest/index.d.ts
@@ -13,7 +13,9 @@
 //                 Ahn <https://github.com/AhnpGit>
 //                 Josh Goldberg <https://github.com/joshuakgoldberg>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+-// TypeScript Version: 2.3
 
+declare var beforeAll: jest.Lifecycle;
 declare var beforeEach: jest.Lifecycle;
 declare var afterAll: jest.Lifecycle;
 declare var afterEach: jest.Lifecycle;