diff --git a/knockout/knockout.d.ts b/knockout/knockout.d.ts
index 1d77e261d..63e3ee61d 100644
--- a/knockout/knockout.d.ts
+++ b/knockout/knockout.d.ts
@@ -1,4 +1,4 @@
-// Type definitions for Knockout 2.2
+// Type definitions for Knockout 2.3
 // Project: http://knockoutjs.com
 // Definitions by: Boris Yankov <https://github.com/borisyankov/>
 // Definitions: https://github.com/borisyankov/DefinitelyTyped