diff --git a/CHANGELOG.md b/CHANGELOG.md
index 429e9c7..c7c7944 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # bedrock-manifest-proxy ChangeLog
 
+## 4.1.0 - 2025-05-dd
+
+### Changed
+- Use `lru-cache@11`.
+
 ## 4.0.0 - 2023-10-13
 
 ### Changed
diff --git a/lib/http.js b/lib/http.js
index 9193cdb..68987f0 100644
--- a/lib/http.js
+++ b/lib/http.js
@@ -1,15 +1,13 @@
 /*!
- * Copyright (c) 2019-2022 Digital Bazaar, Inc. All rights reserved.
+ * Copyright (c) 2019-2025 Digital Bazaar, Inc. All rights reserved.
  */
 import * as bedrock from '@bedrock/core';
 import {asyncHandler} from '@bedrock/express';
 import CachePolicy from 'http-cache-semantics';
 import contentType from 'content-type';
-import {createRequire} from 'node:module';
 import {httpClient} from '@digitalbazaar/http-client';
 import {httpsAgent} from '@bedrock/https-agent';
-const require = createRequire(import.meta.url);
-const LRU = require('lru-cache');
+import {LRUCache as LRU} from 'lru-cache';
 
 const {config, util: {BedrockError}} = bedrock;
 
@@ -20,8 +18,8 @@ let MANIFEST_CACHE;
 bedrock.events.on('bedrock.init', () => {
   // init web app manifest cache
   MANIFEST_CACHE = new LRU({
-    max: config['manifest-proxy'].manifestCache.size,
-    length({response}) {
+    maxSize: config['manifest-proxy'].manifestCache.size,
+    sizeCalculation({response}) {
       const headerLength = JSON.stringify(response.headers).length;
       return headerLength + (response.data ? response.data.length : 0);
     }
@@ -115,7 +113,7 @@ async function getResponse({host}) {
 
   // update cache
   freshUntil = Date.now() + config['manifest-proxy'].manifestCache.ttl;
-  MANIFEST_CACHE.set(manifestUrl, {policy, response, freshUntil}, ttl);
+  MANIFEST_CACHE.set(manifestUrl, {policy, response, freshUntil}, {ttl});
 
   // update response header using latest policy
   response.headers = policy.responseHeaders();
diff --git a/package.json b/package.json
index b568b46..4b62d41 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
     "@digitalbazaar/http-client": "^4.0.0",
     "content-type": "^1.0.4",
     "http-cache-semantics": "^4.1.0",
-    "lru-cache": "^6.0.0"
+    "lru-cache": "^11.1.0"
   },
   "peerDependencies": {
     "@bedrock/core": "^6.0.0",