diff --git a/README.md b/README.md
index ef133f9..1bf36d5 100644
--- a/README.md
+++ b/README.md
@@ -53,6 +53,7 @@ A collection of awesome penetration testing resources
 * [Metasploit Unleashed](https://www.offensive-security.com/metasploit-unleashed/) - Free Offensive Security Metasploit course
 * [PTES](http://www.pentest-standard.org/) - Penetration Testing Execution Standard
 * [OWASP](https://www.owasp.org/index.php/Main_Page) - Open Web Application Security Project
+* [PENTEST-WIKI](https://github.com/nixawk/pentest-wiki) - A free online security knowledge library for pentesters / researchers.
 
 #### Exploit development
 * [Shellcode Tutorial](http://www.vividmachines.com/shellcode/shellcode.html) - Tutorial on how to write shellcode