diff --git a/types/nats-hemera/index.d.ts b/types/nats-hemera/index.d.ts
index 362051ba07..98fd0462b1 100644
--- a/types/nats-hemera/index.d.ts
+++ b/types/nats-hemera/index.d.ts
@@ -1,4 +1,5 @@
 // Type definitions for hemera 1.0
+// TypeScript Version: 2.4
 // Project: https://github.com/hemerajs/hemera
 // Definitions by: Melvin Groenhoff <https://github.com/vforv>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped