diff --git a/free-programming-books-pt_BR.md b/free-programming-books-pt_BR.md
index 95e7f2c6a..0878e4217 100644
--- a/free-programming-books-pt_BR.md
+++ b/free-programming-books-pt_BR.md
@@ -132,6 +132,7 @@
 
 ### GO
 
+* [Aprenda Go com Testes](https://larien.gitbook.io/aprenda-go-com-testes) - Lauren Ferreira
 * [Go - hands on](https://github.com/go-br/estudos)