diff --git a/notary/README-short.txt b/notary/README-short.txt
index 99f135d97a13..c73b1569f901 100644
--- a/notary/README-short.txt
+++ b/notary/README-short.txt
@@ -1 +1 @@
-Notary server and signer cooperatively handle signing and distribution of notary repositories.
+DEPRECATED; Notary server and signer cooperatively handle signing and distribution
diff --git a/notary/deprecated.md b/notary/deprecated.md
new file mode 100644
index 000000000000..f3bc92d7224b
--- /dev/null
+++ b/notary/deprecated.md
@@ -0,0 +1 @@
+The [upstream Notary project](https://github.com/notaryproject/notary) was archived as of July 30, 2025. For more information, see [notaryproject/.github#70](https://github.com/notaryproject/.github/issues/70).