diff --git a/package.json b/package.json
index d0a58870ce..c9f6f19ba0 100644
--- a/package.json
+++ b/package.json
@@ -151,7 +151,7 @@
   "devDependencies": {
     "@libp2p/interface-peer-discovery-compliance-tests": "^2.0.0",
     "@libp2p/interface-peer-id": "^2.0.0",
-    "aegir": "^38.1.7",
+    "aegir": "^39.0.5",
     "sinon-ts": "^1.0.0"
   }
 }
diff --git a/src/index.ts b/src/index.ts
index 5bf9857ac3..ce35cd6702 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,13 +1,13 @@
-import { multiaddr } from '@multiformats/multiaddr'
-import { P2P } from '@multiformats/mafmt'
+import { symbol } from '@libp2p/interface-peer-discovery'
 import { EventEmitter } from '@libp2p/interfaces/events'
 import { logger } from '@libp2p/logger'
+import { peerIdFromString } from '@libp2p/peer-id'
+import { P2P } from '@multiformats/mafmt'
+import { multiaddr } from '@multiformats/multiaddr'
 import type { PeerDiscovery, PeerDiscoveryEvents } from '@libp2p/interface-peer-discovery'
 import type { PeerInfo } from '@libp2p/interface-peer-info'
-import { peerIdFromString } from '@libp2p/peer-id'
-import { symbol } from '@libp2p/interface-peer-discovery'
-import type { Startable } from '@libp2p/interfaces/dist/src/startable'
 import type { PeerStore } from '@libp2p/interface-peer-store'
+import type { Startable } from '@libp2p/interfaces/dist/src/startable'
 
 const log = logger('libp2p:bootstrap')
 
@@ -95,13 +95,9 @@ class Bootstrap extends EventEmitter<PeerDiscoveryEvents> implements PeerDiscove
     this._init = options
   }
 
-  get [symbol] (): true {
-    return true
-  }
+  readonly [symbol] = true
 
-  get [Symbol.toStringTag] (): '@libp2p/bootstrap' {
-    return '@libp2p/bootstrap'
-  }
+  readonly [Symbol.toStringTag] = '@libp2p/bootstrap'
 
   isStarted (): boolean {
     return Boolean(this.timer)
diff --git a/test/bootstrap.spec.ts b/test/bootstrap.spec.ts
index c712f026fe..4213385204 100644
--- a/test/bootstrap.spec.ts
+++ b/test/bootstrap.spec.ts
@@ -1,15 +1,15 @@
 /* eslint-env mocha */
 
-import { expect } from 'aegir/chai'
+import { isPeerId } from '@libp2p/interface-peer-id'
+import { start, stop } from '@libp2p/interfaces/startable'
+import { peerIdFromString } from '@libp2p/peer-id'
 import { IPFS } from '@multiformats/mafmt'
-import { bootstrap, BootstrapComponents } from '../src/index.js'
+import { multiaddr } from '@multiformats/multiaddr'
+import { expect } from 'aegir/chai'
+import { type StubbedInstance, stubInterface } from 'sinon-ts'
+import { bootstrap, type BootstrapComponents } from '../src/index.js'
 import peerList from './fixtures/default-peers.js'
 import partialValidPeerList from './fixtures/some-invalid-peers.js'
-import { isPeerId } from '@libp2p/interface-peer-id'
-import { multiaddr } from '@multiformats/multiaddr'
-import { peerIdFromString } from '@libp2p/peer-id'
-import { start, stop } from '@libp2p/interfaces/startable'
-import { StubbedInstance, stubInterface } from 'sinon-ts'
 import type { PeerStore } from '@libp2p/interface-peer-store'
 
 describe('bootstrap', () => {
diff --git a/test/compliance.spec.ts b/test/compliance.spec.ts
index 8e0534bc41..7afc7dba12 100644
--- a/test/compliance.spec.ts
+++ b/test/compliance.spec.ts
@@ -1,10 +1,10 @@
 /* eslint-env mocha */
 
 import tests from '@libp2p/interface-peer-discovery-compliance-tests'
+import { stubInterface } from 'sinon-ts'
 import { bootstrap } from '../src/index.js'
 import peerList from './fixtures/default-peers.js'
 import type { PeerStore } from '@libp2p/interface-peer-store'
-import { stubInterface } from 'sinon-ts'
 
 describe('compliance tests', () => {
   tests({