diff --git a/README.md b/README.md
index 9c36c41..6f8b937 100644
--- a/README.md
+++ b/README.md
@@ -27,10 +27,10 @@ This project is licensed under a 3-clause BSD-style license.
 
 SPDX-License-Identifier: BSD-3-Clause
 
-## Master Repository
+## Upstream Repository
 
-The master git repository for this project is hosted by the [Software
-Assurance & Security Research Team](https://logicalhacking.com) at
+The upstream git repository, i.e., the single source of truth, for this project is hosted 
+by the [Software Assurance & Security Research Team](https://logicalhacking.com) at
 <https://git.logicalhacking.com/afp-mirror/Extended_Finite_State_Machine_Inference>.
 
 ## Publications