diff --git a/types/mock-knex/index.d.ts b/types/mock-knex/index.d.ts
index 5633000ab9..a21ab2eb0a 100644
--- a/types/mock-knex/index.d.ts
+++ b/types/mock-knex/index.d.ts
@@ -2,7 +2,7 @@
 // Project: https://github.com/colonyamerican/mock-knex
 // Definitions by: Jesse Zhang <https://github.com/jessezhang91>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.2
+// TypeScript Version: 2.3
 
 /// <reference types="node" />
 
diff --git a/types/promise-retry/index.d.ts b/types/promise-retry/index.d.ts
index f3b01b1dac..e31fe3a657 100644
--- a/types/promise-retry/index.d.ts
+++ b/types/promise-retry/index.d.ts
@@ -2,6 +2,7 @@
 // Project: https://github.com/IndigoUnited/node-promise-retry
 // Definitions by: Jamie Birch <https://github.com/shirakaba>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 2.3
 
 import { WrapOptions } from "retry";
 /**
diff --git a/types/x-ray/index.d.ts b/types/x-ray/index.d.ts
index 782fa8bdaf..271155ef94 100644
--- a/types/x-ray/index.d.ts
+++ b/types/x-ray/index.d.ts
@@ -2,6 +2,7 @@
 // Project: https://github.com/lapwinglabs/x-ray#readme
 // Definitions by: Matt Traynham <https://github.com/mtraynham>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 2.3
 
 /// <reference types="node" />