diff --git a/pkg/psync/package.json b/pkg/psync/package.json
index 77d88e17..1292700a 100644
--- a/pkg/psync/package.json
+++ b/pkg/psync/package.json
@@ -38,7 +38,6 @@
     "mnemonist": "^0.39.8",
     "murmurhash3js-revisited": "^3.0.0",
     "obliterator": "^2.0.4",
-    "p-defer": "^4.0.1",
     "pako": "^2.1.0",
     "tslib": "^2.8.1",
     "typescript-event-target": "^1.1.1"
diff --git a/pkg/psync/src/psync/full.ts b/pkg/psync/src/psync/full.ts
index 44716ebd..6e01a91b 100644
--- a/pkg/psync/src/psync/full.ts
+++ b/pkg/psync/src/psync/full.ts
@@ -3,7 +3,6 @@ import { GenericNumber } from "@ndn/naming-convention2";
 import type { Component, Data, Interest, Name, Signer, Verifier } from "@ndn/packet";
 import { type SyncNode, type SyncProtocol, SyncUpdate } from "@ndn/sync-api";
 import { KeyMap, toHex, trackEventListener } from "@ndn/util";
-import pDefer, { type DeferredPromise } from "p-defer";
 import { TypedEventTarget } from "typescript-event-target";
 
 import { computeInterval, type IntervalFunc, type IntervalRange } from "../detail/interval";
@@ -17,7 +16,7 @@ interface PendingInterest {
   interest: Interest;
   recvIblt: IBLT;
   expire: NodeJS.Timeout | number;
-  defer: DeferredPromise<Data | undefined>;
+  defer: PromiseWithResolvers<Data | undefined>;
 }
 
 interface DebugEntry {
@@ -175,7 +174,7 @@ export class FullSync extends TypedEventTarget<EventMap> implements SyncProtocol
           pending.defer.resolve(undefined);
         }
       }, interest.lifetime),
-      defer: pDefer<Data | undefined>(),
+      defer: Promise.withResolvers<Data | undefined>(),
     };
     this.pPendings.set(ibltComp, pending);
     return pending.defer.promise;
diff --git a/pkg/psync/src/psync/partial-publisher.ts b/pkg/psync/src/psync/partial-publisher.ts
index f98669ad..c324e6af 100644
--- a/pkg/psync/src/psync/partial-publisher.ts
+++ b/pkg/psync/src/psync/partial-publisher.ts
@@ -4,7 +4,6 @@ import { Data, type Interest, type Name, NameMap, type Signer } from "@ndn/packe
 import type { SyncNode, SyncProtocol } from "@ndn/sync-api";
 import { trackEventListener } from "@ndn/util";
 import { BloomFilter } from "@yoursunny/psync-bloom";
-import pDefer, { type DeferredPromise } from "p-defer";
 import { TypedEventTarget } from "typescript-event-target";
 
 import type { IBLT } from "../iblt";
@@ -17,7 +16,7 @@ interface PendingInterest {
   recvIblt: IBLT;
   bloom: BloomFilter;
   expire: NodeJS.Timeout | number;
-  defer: DeferredPromise<Data | undefined>;
+  defer: PromiseWithResolvers<Data | undefined>;
 }
 
 interface DebugEntry {
@@ -166,7 +165,7 @@ export class PartialPublisher extends TypedEventTarget<EventMap> implements Sync
           pending.defer.resolve(undefined);
         }
       }, interest.lifetime),
-      defer: pDefer<Data | undefined>(),
+      defer: Promise.withResolvers<Data | undefined>(),
     };
     this.sPendings.set(interest.name, pending);
     return pending.defer.promise;
diff --git a/pkg/psync/src/syncps/pubsub.ts b/pkg/psync/src/syncps/pubsub.ts
index 2713fb49..8b0fce01 100644
--- a/pkg/psync/src/syncps/pubsub.ts
+++ b/pkg/psync/src/syncps/pubsub.ts
@@ -6,7 +6,6 @@ import { KeyMap, toHex, trackEventListener } from "@ndn/util";
 import DefaultWeakMap from "mnemonist/default-weak-map.js";
 import filter from "obliterator/filter.js";
 import take from "obliterator/take.js";
-import pDefer, { type DeferredPromise } from "p-defer";
 import { TypedEventTarget } from "typescript-event-target";
 
 import { IBLT } from "../iblt";
@@ -30,7 +29,7 @@ interface SyncInterestInfo {
 
 interface PendingInterest extends SyncInterestInfo {
   expire: NodeJS.Timeout | number;
-  defer: DeferredPromise<Data | undefined>;
+  defer: PromiseWithResolvers<Data | undefined>;
 }
 
 interface DebugEntry {
@@ -268,7 +267,7 @@ export class SyncpsPubsub extends TypedEventTarget<EventMap> implements Subscrib
           pending.defer.resolve(undefined);
         }
       }, interest.lifetime),
-      defer: pDefer<Data | undefined>(),
+      defer: Promise.withResolvers<Data | undefined>(),
     };
     this.pPendings.set(ibltComp, pending);
     return pending.defer.promise;
diff --git a/pkg/pyrepo/package.json b/pkg/pyrepo/package.json
index b90c0f3d..2f7ec8d3 100644
--- a/pkg/pyrepo/package.json
+++ b/pkg/pyrepo/package.json
@@ -34,7 +34,6 @@
     "@ndn/sync-api": "workspace:^",
     "@ndn/tlv": "workspace:*",
     "@ndn/util": "workspace:*",
-    "p-defer": "^4.0.1",
     "streaming-iterables": "^8.0.1",
     "tslib": "^2.8.1",
     "type-fest": "^4.30.0",
diff --git a/pkg/pyrepo/src/store.ts b/pkg/pyrepo/src/store.ts
index eba24a51..a7fb9692 100644
--- a/pkg/pyrepo/src/store.ts
+++ b/pkg/pyrepo/src/store.ts
@@ -2,7 +2,6 @@ import { produce, ProducerOptions } from "@ndn/endpoint";
 import type { Name } from "@ndn/packet";
 import { DataStore as S } from "@ndn/repo-api";
 import { Closers, delay } from "@ndn/util";
-import pDefer from "p-defer";
 import { collect } from "streaming-iterables";
 
 import { PyRepoClient } from "./client";
@@ -67,7 +66,7 @@ export class PyRepoStore implements Disposable, S.Insert, S.Delete {
     const pkts = await collect(S.Insert.parseArgs<{}>(args).pkts);
 
     const retrieved = new Set<number>();
-    const answered = pDefer<void>();
+    const answered = Promise.withResolvers<void>();
     const timeout = setTimeout(
       () => answered.reject(new Error("no incoming Interest")),
       this.incomingInterestTimeout,
diff --git a/pkg/repo-api/package.json b/pkg/repo-api/package.json
index 40fe407e..11003f5a 100644
--- a/pkg/repo-api/package.json
+++ b/pkg/repo-api/package.json
@@ -34,7 +34,6 @@
     "@ndn/tlv": "workspace:*",
     "@ndn/util": "workspace:*",
     "is-stream": "^4.0.1",
-    "p-defer": "^4.0.1",
     "p-event": "^6.0.1",
     "streaming-iterables": "^8.0.1",
     "tslib": "^2.8.1",
diff --git a/pkg/repo-api/src/bulk-insert-initiator.ts b/pkg/repo-api/src/bulk-insert-initiator.ts
index 9718f5bb..960fc587 100644
--- a/pkg/repo-api/src/bulk-insert-initiator.ts
+++ b/pkg/repo-api/src/bulk-insert-initiator.ts
@@ -2,7 +2,6 @@ import { Transport } from "@ndn/l3face";
 import type { Data } from "@ndn/packet";
 import { Encoder } from "@ndn/tlv";
 import { pushable } from "@ndn/util";
-import pDefer, { type DeferredPromise } from "p-defer";
 import { consume } from "streaming-iterables";
 import { TypedEventTarget } from "typescript-event-target";
 
@@ -10,7 +9,7 @@ import * as S from "./data-store";
 
 interface Burst {
   pkts: AsyncIterable<Data>;
-  defer: DeferredPromise<undefined>;
+  defer: PromiseWithResolvers<void>;
 }
 
 type EventMap = {
@@ -69,7 +68,7 @@ export class BulkInsertInitiator extends TypedEventTarget<EventMap> implements S
    */
   public async insert(...args: S.Insert.Args<{}>): Promise<void> {
     const { pkts } = S.Insert.parseArgs<{}>(args);
-    const defer = pDefer<undefined>();
+    const defer = Promise.withResolvers<void>();
     this.queue.push({ pkts, defer });
     return defer.promise;
   }
diff --git a/pkg/segmented-object/package.json b/pkg/segmented-object/package.json
index bfb3de3c..7f4a2fba 100644
--- a/pkg/segmented-object/package.json
+++ b/pkg/segmented-object/package.json
@@ -35,7 +35,6 @@
     "it-keepalive": "^1.2.0",
     "mnemonist": "^0.39.8",
     "obliterator": "^2.0.4",
-    "p-defer": "^4.0.1",
     "p-lazy": "^5.0.0",
     "streaming-iterables": "^8.0.1",
     "tslib": "^2.8.1",
diff --git a/pkg/segmented-object/src/serve/data-producer.ts b/pkg/segmented-object/src/serve/data-producer.ts
index bb549c4a..7d5bd413 100644
--- a/pkg/segmented-object/src/serve/data-producer.ts
+++ b/pkg/segmented-object/src/serve/data-producer.ts
@@ -2,7 +2,6 @@ import type { ProducerHandler } from "@ndn/endpoint";
 import { Data, digestSigning, type Interest, type Name, type Signer } from "@ndn/packet";
 import { assert } from "@ndn/util";
 import DefaultMap from "mnemonist/default-map.js";
-import pDefer, { type DeferredPromise } from "p-defer";
 import { getIterator } from "streaming-iterables";
 
 import { defaultSegmentConvention, type SegmentConvention } from "../convention";
@@ -84,9 +83,9 @@ class SequentialDataProducer extends DataProducer {
   private requested = -1;
   private final = Infinity;
   private readonly buffer = new Map<number, Data>();
-  private readonly waitlist = new DefaultMap<number, DeferredPromise<void>>(() => pDefer());
+  private readonly waitlist = new DefaultMap<number, PromiseWithResolvers<void>>(() => Promise.withResolvers<void>());
   private readonly generator: AsyncGenerator<Chunk, false>;
-  private pause?: DeferredPromise<void>;
+  private pause?: PromiseWithResolvers<void>;
 
   constructor(source: ChunkSource, prefix: Name, opts: DataProducer.Options = {}) {
     super(source, prefix, opts);
@@ -139,7 +138,7 @@ class SequentialDataProducer extends DataProducer {
       assert(chunk.i === i, "unexpected chunk number");
 
       if (i > this.requested + bufferAhead) {
-        this.pause = pDefer();
+        this.pause = Promise.withResolvers<void>();
         await this.pause.promise;
         this.pause = undefined;
       }
diff --git a/pkg/svs/package.json b/pkg/svs/package.json
index fc70662f..c82d33d2 100644
--- a/pkg/svs/package.json
+++ b/pkg/svs/package.json
@@ -44,7 +44,6 @@
   "devDependencies": {
     "@ndn/keychain": "workspace:*",
     "@ndn/l3face": "workspace:*",
-    "mnemonist": "^0.39.8",
-    "p-defer": "^4.0.1"
+    "mnemonist": "^0.39.8"
   }
 }
\ No newline at end of file
diff --git a/pkg/svs/tests/svsps.t.ts b/pkg/svs/tests/svsps.t.ts
index 44a3a021..0b3dcb81 100644
--- a/pkg/svs/tests/svsps.t.ts
+++ b/pkg/svs/tests/svsps.t.ts
@@ -5,7 +5,6 @@ import { generateSigningKey } from "@ndn/keychain";
 import { Name, type NameLike } from "@ndn/packet";
 import { DataArray } from "@ndn/repo-api";
 import { Closers, console, crypto, delay } from "@ndn/util";
-import pDefer from "p-defer";
 import { afterEach, beforeAll, expect, test, vi } from "vitest";
 
 import { type MappingEntry, type Subscription, SvPublisher, SvSubscriber, SvSync, TimedMappingEntry } from "..";
@@ -66,7 +65,7 @@ async function publishCheck(
   const abort = new AbortController();
   const received = Array.from<SvSubscriber.Update | undefined>({ length: expectReceive.length });
   let nWaiting = expectReceive.length;
-  const allReceived = pDefer<void>();
+  const allReceived = Promise.withResolvers<void>();
   for (const [i, sub] of expectReceive.entries()) {
     sub.addEventListener("update", (update) => { // eslint-disable-line @typescript-eslint/no-loop-func
       expect(received[i]).toBeUndefined();
diff --git a/pkg/util/package.json b/pkg/util/package.json
index 80509aba..63839f83 100644
--- a/pkg/util/package.json
+++ b/pkg/util/package.json
@@ -29,6 +29,7 @@
   },
   "dependencies": {
     "@shigen/polyfill-symbol-dispose": "^1.0.1",
+    "@ungap/with-resolvers": "^0.1.0",
     "event-iterator": "^2.0.0",
     "streaming-iterables": "^8.0.1",
     "tiny-invariant": "^1.3.3",
diff --git a/pkg/util/src/polyfill_node.ts b/pkg/util/src/polyfill_node.ts
index cb0ff5c3..8421e981 100644
--- a/pkg/util/src/polyfill_node.ts
+++ b/pkg/util/src/polyfill_node.ts
@@ -1 +1 @@
-export {};
+import "@ungap/with-resolvers"; // needed for Node 20.x
diff --git a/xo.config.cjs b/xo.config.cjs
index 75d42446..1076a832 100644
--- a/xo.config.cjs
+++ b/xo.config.cjs
@@ -37,7 +37,14 @@ function makePackageOverrides(config, ...pkgs) {
 
 /** @type {XoOptions} */
 module.exports = {
-  ...js,
+  ...merge(js, {
+    rules: {
+      "n/no-unsupported-features/es-syntax": ["error", {
+        version: require("./package.json").engines.node,
+        ignores: ["promise-withresolvers"],
+      }],
+    },
+  }),
   overrides: [
     ...makePackageOverrides(merge(js, ts), ""),
     ...makePackageOverrides(merge(js, ts, web),