diff --git a/types/react-text-truncate/index.d.ts b/types/react-text-truncate/index.d.ts
index d0eca2e4a4..21b4c537a1 100644
--- a/types/react-text-truncate/index.d.ts
+++ b/types/react-text-truncate/index.d.ts
@@ -2,6 +2,7 @@
 // Project: https://github.com/ShinyChang/react-text-truncate
 // Definitions by: Adrien Antoine <https://github.com/adriantoine>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 2.8
 
 import * as React from 'react';