diff --git a/webcola/webcola.d.ts b/webcola/webcola.d.ts
index 9b185bf5c..ca1de5470 100644
--- a/webcola/webcola.d.ts
+++ b/webcola/webcola.d.ts
@@ -1,6 +1,6 @@
 // Type definitions for webcola 3.1.1
 // Project: https://github.com/tgdwyer/WebCola
-// Definitions by: Noah Chen <https://github.com/nchen63>
+// Definitions by: Qinfeng Chen <https://github.com/qinfchen>, Tim Dwyer <https://github.com/tgdwyer>, Noah Chen <https://github.com/nchen63>
 // Definitions: https://github.com/borisyankov/DefinitelyTyped
 declare module cola {
     function applyPacking(graphs: Array<any>, w: any, h: any, node_size: any, desired_ratio?: number): void;