diff --git a/README.md b/README.md
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+++ b/README.md
@@ -824,6 +824,7 @@ Here are some companies/projects (alphabetical order) using OpenAPI Generator in
 - 2021-07-16 - [銀行事業のサーバーサイド開発について / LINE 京都開発室 エンジニア採用説明会](https://www.youtube.com/watch?v=YrrKQHxLPpQ) by 野田誠人, Robert Mitchell
 - 2021-07-29 - [How To Rewrite a Huge Codebase](https://dzone.com/articles/how-to-rewrite-a-huge-code-base) by [Curtis Poe](https://dzone.com/users/4565446/publiusovidius.html)
 - 2021-08-21 - [Generating Client APIs using Swagger Part 1](https://medium.com/@flowsquad/generating-client-apis-using-swagger-part-1-2d46f13f5e92) by [FlowSquad.io](https://medium.com/@flowsquad)
+- 2021-09-11 - [Invoking AWS ParallelCluster API](https://docs.aws.amazon.com/parallelcluster/latest/ug/api-reference-v3.html) at [AWS ParallelCluster API official documentation](https://docs.aws.amazon.com/parallelcluster/latest/ug/api-reference-v3.html)
 
 ## [6 - About Us](#table-of-contents)