diff --git a/apps/web/src/app/key-management/key-rotation/request/account-keys.request.ts b/apps/web/src/app/key-management/key-rotation/request/account-keys.request.ts
index a97197c80c1..3f53f20419c 100644
--- a/apps/web/src/app/key-management/key-rotation/request/account-keys.request.ts
+++ b/apps/web/src/app/key-management/key-rotation/request/account-keys.request.ts
@@ -5,6 +5,8 @@ import { SigningKey, SigningKeyType, VerifyingKey } from "@bitwarden/key-managem
 export class AccountKeysRequest {
   userKeyEncryptedAccountPrivateKey: string;
   accountPublicKey: string;
+
+  // Cleanup: These should be non-optional after the featureflag is rolled out, and users MUST upgrade https://bitwarden.atlassian.net/browse/PM-21768
   signedPublicKeyOwnershipClaim: string | null;
 
   userKeyEncryptedSigningKey: string | null;