diff --git a/README.md b/README.md
index e2891bd0..1b1e08e4 100644
--- a/README.md
+++ b/README.md
@@ -26,6 +26,8 @@ Licenses
 ------------
 *Clutch* uses the following libraries under their respective licenses.
 
+[optool] (https://github.com/alexzielenski/optool) by Alex Zielenski<br />
+[GBCli] (https://github.com/tomaz/GBCli) by Tomaz Kragelj<br />
 [ZipArchive] (https://github.com/mattconnolly/ZipArchive/) by Matt Connolly, Edward Patel, et al.<br />
 [MiniZip] (http://www.winimage.com/zLibDll/minizip.html) by Gilles Vollant and Mathias Svensson.