diff --git a/types/rollup/index.d.ts b/types/rollup/index.d.ts
index 092c0d078e..946b4f6786 100644
--- a/types/rollup/index.d.ts
+++ b/types/rollup/index.d.ts
@@ -1,4 +1,4 @@
-// Type definitions for rollup 0.41
+// Type definitions for rollup 0.51
 // Project: https://github.com/rollup/rollup
 // Definitions by: Philipp A. <https://github.com/flying-sheep>, Christian Svensson <https://github.com/csvn>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped