diff --git a/README.md b/README.md
index bbcabe4f..93bc51e3 100644
--- a/README.md
+++ b/README.md
@@ -1621,6 +1621,7 @@ See [go-hardware](https://github.com/rakyll/go-hardware) for a comprehensive lis
 
 * Mock
     * [counterfeiter](https://github.com/maxbrunsfeld/counterfeiter) - Tool for generating self-contained mock objects.
+    * [go-localstack](https://github.com/elgohr/go-localstack) - Tool for using localstack in AWS testing.
     * [go-sqlmock](https://github.com/DATA-DOG/go-sqlmock) - Mock SQL driver for testing database interactions.
     * [go-txdb](https://github.com/DATA-DOG/go-txdb) - Single transaction based database driver mainly for testing purposes.
     * [gock](https://github.com/h2non/gock) - Versatile HTTP mocking made easy.