diff --git a/types/webappsec-credential-management/index.d.ts b/types/webappsec-credential-management/index.d.ts
index a0498f34af..3c608e2202 100644
--- a/types/webappsec-credential-management/index.d.ts
+++ b/types/webappsec-credential-management/index.d.ts
@@ -392,8 +392,8 @@ type UserVerificationRequirement = "required" | "preferred" | "discouraged";
 interface PublicKeyCredentialRequestOptions {
     challenge: BufferSource;
     timeout: number;
-    rpId: string;
-    allowCredentials: PublicKeyCredentialDescriptor[];
+    rpId?: string;
+    allowCredentials?: PublicKeyCredentialDescriptor[];
     userVerification?: UserVerificationRequirement;
     extensions?: any;
 }