diff --git a/free-courses-pt_BR.md b/free-courses-pt_BR.md
index 51f0adee8..e5b532270 100644
--- a/free-courses-pt_BR.md
+++ b/free-courses-pt_BR.md
@@ -20,6 +20,7 @@
 * [Kotlin](#kotlin)
 * [Kubernetes](#kubernetes)
 * [Linux](#linux)
+* [Machine Learning](#machine-learning)
 * [Markdown](#markdown)
 * [Node.js](#nodejs)
 * [PHP](#php)
@@ -155,6 +156,12 @@
 * [Terminal Linux](https://www.udemy.com/course/terminal-de-comandos-linux/) - Diego Mariano (Udemy)
 
 
+### Machine Learning
+
+* [Machine Learning e Data Science: O Guia para Iniciantes](https://www.udemy.com/course/guia-iniciantes-machine-learning-data-science/) - Jones Granatyr
+* [Neural Networks e Deep Learning para Leigos: Sem Mistérios!](https://www.udemy.com/course/neural-networks-e-deep-learnig-para-leigos/) - Fernando Amaral
+
+
 ### Markdown
 
 * [Aprenda Markdown](https://www.udemy.com/aprenda-markdown/) - Roberto Achar (Udemy)
diff --git a/free-programming-books-pt_BR.md b/free-programming-books-pt_BR.md
index 75aa3fd61..1ef3f8314 100644
--- a/free-programming-books-pt_BR.md
+++ b/free-programming-books-pt_BR.md
@@ -313,3 +313,4 @@
 * [Vim Básico](http://aurelio.net/vim/vim-basico.txt) - Aurelio Marinho Jargas
 * [Vim Médio](http://aurelio.net/vim/vim-medio.txt) - Aurelio Marinho Jargas
 * [Vim para Noobs](http://woliveiras.com.br/vimparanoobs/) - William Oliveira Souza
+
diff --git a/problem-sets-competitive-programming.md b/problem-sets-competitive-programming.md
index 366e29b3d..de789b99c 100644
--- a/problem-sets-competitive-programming.md
+++ b/problem-sets-competitive-programming.md
@@ -14,6 +14,7 @@
 * [AtCoder](https://atcoder.jp)
 * [Binary Search](https://binarysearch.com)
 * [Caribbean Online Judge](http://coj.uci.cu)
+* [COCI](https://hsin.hr/coci/)
 * [Codeabbey](http://www.codeabbey.com)
 * [Codechef](https://www.codechef.com/contests)
 * [Codecombat](https://codecombat.com)
@@ -23,7 +24,6 @@
 * [Coderbyte](https://coderbyte.com)
 * [Codewars](http://www.codewars.com)
 * [Codingame](https://www.codingame.com/start)
-* [COCI](https://hsin.hr/coci/)
 * [E-olymp](https://www.e-olymp.com/en/)
 * [Facebook Hackercup](https://www.facebook.com/hackercup)
 * [Google Code Jam](https://codingcompetitions.withgoogle.com/codejam)