diff --git a/README.md b/README.md
index 8c92c38..ce82be4 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,5 @@
+**This repository is archived.  The ratified specification has been merged into the riscv-isa-manual repository as part of the Unprivileged Specification**
+
 Welcome to the RISC-V Code Size Reduction Group
 ------------------------------------------------