diff --git a/types/slate/index.d.ts b/types/slate/index.d.ts
index d7f974bd7c..7c9a41efa8 100644
--- a/types/slate/index.d.ts
+++ b/types/slate/index.d.ts
@@ -9,7 +9,7 @@
 //                 Irwan Fario Subastian <https://github.com/isubasti>
 //                 Sebastian Greaves <https://github.com/sgreav>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.3
+// TypeScript Version: 2.8
 import * as Immutable from "immutable";
 import { SyntheticEvent } from "react";