diff --git a/cmd/ucp-artifacts/main.go b/cmd/ucp-artifacts/main.go
index 9e14ca0..8ca9b68 100644
--- a/cmd/ucp-artifacts/main.go
+++ b/cmd/ucp-artifacts/main.go
@@ -196,7 +196,7 @@ func buildProfile() ucp.ProfileData {
 				}},
 				"dev.ucp.shopping.authentication": {{
 					Version:     ucpVersion,
-					Spec:        "https://ucp.dev/2026-04-08/specification/authentication",
+					Spec:        "https://ucp.dev/2026-04-08/specification/identity-linking",
 					Schema:      authURL,
 					Description: "Customer authentication — email+password registration and login with HMAC-signed session cookies, logout, current-customer lookup, email verification, and password reset. Failed logins and reset requests are rate-limited.",
 					Operations: []ucp.OpDef{