diff --git a/README.md b/README.md
index b95ffc2..11764f9 100644
--- a/README.md
+++ b/README.md
@@ -47,7 +47,9 @@ An example of the package can be seen below
 ## Requirements
 
 * Python 3.7+
-* toolbox-py
+* [toolbox-py][toolbox-git]
+
+[toolbox-git]: https://github.com/michaelgale/toolbox-py
 
 ## References