diff --git a/README.md b/README.md
index eb32cc4..9c3a3b0 100644
--- a/README.md
+++ b/README.md
@@ -122,6 +122,7 @@ Your contributions and suggestions are heartily♥ welcome. (✿◕‿◕). Plea
 * [Fedora Security Lab](https://labs.fedoraproject.org/en/security/) - Provides a safe test environment to work on security auditing, forensics, system rescue and teaching security testing methodologies.
 * [The Pentesters Framework](https://github.com/trustedsec/ptf) - Distro organized around the Penetration Testing Execution Standard (PTES), providing a curated collection of utilities that eliminates often unused toolchains.
 * [AttifyOS](https://github.com/adi0x90/attifyos) - GNU/Linux distribution focused on tools useful during Internet of Things (IoT) security assessments.
+* [PentestBox](https://pentestbox.org/) - Opensource pre-configured portable penetration testing environment for Windows OS.
 
 ### Docker for Penetration Testing