diff --git a/types/async/index.d.ts b/types/async/index.d.ts
index 2f3d37d9f2..e12ac11c93 100644
--- a/types/async/index.d.ts
+++ b/types/async/index.d.ts
@@ -1,4 +1,4 @@
-// Type definitions for Async 2.0.1
+// Type definitions for Async 2.4.0
 // Project: https://github.com/caolan/async
 // Definitions by: Boris Yankov <https://github.com/borisyankov>
 //                 Arseniy Maximov <https://github.com/kern0>