diff --git a/problem-sets-competitive-programming.md b/problem-sets-competitive-programming.md
index a66ae5a27dcf15ac97860d494e78d8e215f27e30..67eab4f946685fdb34ce9aa5d1a0de87638e48a9 100644
--- a/problem-sets-competitive-programming.md
+++ b/problem-sets-competitive-programming.md
@@ -42,6 +42,7 @@
 
 ### Capture the flag
 
+* [CTFlearn](https://ctflearn.com) (email adress *requested*)
 * [Google Ctf](https://capturetheflag.withgoogle.com) (email adress *requested*)
 * [Hackthebox](https://www.hackthebox.eu) (email adress *requested*)
 * [Overthewire Wargames fungame to practice CTF](https://overthewire.org/wargames/bandit)