diff --git a/lib/ListManager.js b/lib/ListManager.js
index a9755827..ad8ba43e 100644
--- a/lib/ListManager.js
+++ b/lib/ListManager.js
@@ -2,7 +2,6 @@
  * Copyright (c) 2020-2024 Digital Bazaar, Inc. All rights reserved.
  */
 import assert from 'assert-plus';
-import {Bitstring} from '@digitalbazaar/bitstring';
 import {generateLocalId} from './helpers.js';
 import {IndexAllocationCache} from './IndexAllocationCache.js';
 import {ListSource} from './ListSource.js';