diff --git a/barretenberg/bbup/bb-versions.json b/barretenberg/bbup/bb-versions.json
index f9845120b9d9..5a587648ec72 100644
--- a/barretenberg/bbup/bb-versions.json
+++ b/barretenberg/bbup/bb-versions.json
@@ -1,4 +1,5 @@
 {
+  "1.0.0-beta.21": "5.0.0-nightly.20260324",
   "1.0.0-beta.20": "5.0.0-nightly.20260324",
   "1.0.0-beta.19": "4.0.0-nightly.20260120",
   "1.0.0-beta.18": "3.0.0-nightly.20260102",