diff --git a/README.md b/README.md
index 2fbdb28..a590d33 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,8 @@ XSLT transformations of SAML metadata
 
 ## Installation
 
+The scripts in this repository depend on a [Bash Library](https://github.internet2.edu/InCommon/bash-library) of basic scripts. Download and install the latter before continuing.
+
 Download the source, change directory to the source directory, and install the source into ``/tmp`` as follows:
 
 ```Shell