diff --git a/README.md b/README.md
index 8ee372fcd2..66c0f71b6c 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,8 @@ copyright: Copyright (c) Runtime Verification, Inc. All Rights Reserved.
 permalink: README.html
 ---
 
+DO NOT MERGE, TESTING ONLY
+
 [Join the chat on Matrix](https://matrix.to/#/#k:matrix.org)
 
 # Introduction