diff --git a/yarn-project/p2p/package.json b/yarn-project/p2p/package.json
index edb403659341..9c95b6c6129e 100644
--- a/yarn-project/p2p/package.json
+++ b/yarn-project/p2p/package.json
@@ -78,8 +78,6 @@
     "@aztec/simulator": "workspace:^",
     "@aztec/stdlib": "workspace:^",
     "@aztec/telemetry-client": "workspace:^",
-    "@chainsafe/discv5": "9.0.0",
-    "@chainsafe/enr": "3.0.0",
     "@chainsafe/libp2p-gossipsub": "13.0.0",
     "@chainsafe/libp2p-noise": "^15.0.0",
     "@chainsafe/libp2p-yamux": "^6.0.2",
@@ -94,6 +92,8 @@
     "@libp2p/prometheus-metrics": "^4.2.4",
     "@libp2p/tcp": "9.0.24",
     "@multiformats/multiaddr": "12.1.14",
+    "@nethermindeth/discv5": "9.0.0-backport-306-v4",
+    "@nethermindeth/enr": "3.0.0-backport-306-v4",
     "interface-datastore": "^8.2.11",
     "interface-store": "^5.1.8",
     "libp2p": "1.5.0",
diff --git a/yarn-project/p2p/src/bootstrap/bootstrap.ts b/yarn-project/p2p/src/bootstrap/bootstrap.ts
index 4026a0831fce..afa873665bfb 100644
--- a/yarn-project/p2p/src/bootstrap/bootstrap.ts
+++ b/yarn-project/p2p/src/bootstrap/bootstrap.ts
@@ -3,10 +3,10 @@ import type { AztecAsyncKVStore } from '@aztec/kv-store';
 import type { P2PBootstrapApi } from '@aztec/stdlib/interfaces/server';
 import { OtelMetricsAdapter, type TelemetryClient } from '@aztec/telemetry-client';
 
-import { Discv5, type Discv5EventEmitter } from '@chainsafe/discv5';
-import { ENR, type SignableENR } from '@chainsafe/enr';
 import type { PeerId } from '@libp2p/interface';
 import { type Multiaddr, multiaddr } from '@multiformats/multiaddr';
+import { Discv5, type Discv5EventEmitter } from '@nethermindeth/discv5';
+import { ENR, type SignableENR } from '@nethermindeth/enr';
 
 import type { BootnodeConfig } from '../config.js';
 import { createBootnodeENRandPeerId } from '../enr/generate-enr.js';
diff --git a/yarn-project/p2p/src/client/interface.ts b/yarn-project/p2p/src/client/interface.ts
index d877d1fed3a2..9cbffc651848 100644
--- a/yarn-project/p2p/src/client/interface.ts
+++ b/yarn-project/p2p/src/client/interface.ts
@@ -3,8 +3,8 @@ import type { P2PApiFull } from '@aztec/stdlib/interfaces/server';
 import type { BlockProposal, P2PClientType } from '@aztec/stdlib/p2p';
 import type { Tx, TxHash } from '@aztec/stdlib/tx';
 
-import type { ENR } from '@chainsafe/enr';
 import type { PeerId } from '@libp2p/interface';
+import type { ENR } from '@nethermindeth/enr';
 
 import type { P2PConfig } from '../config.js';
 import type { AuthRequest, StatusMessage } from '../services/index.js';
diff --git a/yarn-project/p2p/src/client/p2p_client.ts b/yarn-project/p2p/src/client/p2p_client.ts
index b7a24787ce22..cf32d0ba19a1 100644
--- a/yarn-project/p2p/src/client/p2p_client.ts
+++ b/yarn-project/p2p/src/client/p2p_client.ts
@@ -26,8 +26,8 @@ import {
   trackSpan,
 } from '@aztec/telemetry-client';
 
-import type { ENR } from '@chainsafe/enr';
 import type { PeerId } from '@libp2p/interface';
+import type { ENR } from '@nethermindeth/enr';
 
 import { type P2PConfig, getP2PDefaultConfig } from '../config.js';
 import type { AttestationPool } from '../mem_pools/attestation_pool/attestation_pool.js';
diff --git a/yarn-project/p2p/src/enr/generate-enr.ts b/yarn-project/p2p/src/enr/generate-enr.ts
index 869c1834a99c..b5a71283b4f1 100644
--- a/yarn-project/p2p/src/enr/generate-enr.ts
+++ b/yarn-project/p2p/src/enr/generate-enr.ts
@@ -2,9 +2,9 @@ import type { LogFn } from '@aztec/foundation/log';
 import { type ChainConfig, emptyChainConfig } from '@aztec/stdlib/config';
 import type { ComponentsVersions } from '@aztec/stdlib/versioning';
 
-import { ENR, SignableENR } from '@chainsafe/enr';
 import type { PeerId } from '@libp2p/interface';
 import { type Multiaddr, multiaddr } from '@multiformats/multiaddr';
+import { ENR, SignableENR } from '@nethermindeth/enr';
 
 import { AZTEC_ENR_CLIENT_VERSION_KEY, AZTEC_ENR_KEY } from '../types/index.js';
 import { convertToMultiaddr, createLibP2PPeerIdFromPrivateKey } from '../util.js';
diff --git a/yarn-project/p2p/src/services/discv5/discV5_service.ts b/yarn-project/p2p/src/services/discv5/discV5_service.ts
index 4908340bcf42..8bef88a8b559 100644
--- a/yarn-project/p2p/src/services/discv5/discV5_service.ts
+++ b/yarn-project/p2p/src/services/discv5/discV5_service.ts
@@ -3,10 +3,10 @@ import { sleep } from '@aztec/foundation/sleep';
 import { type ComponentsVersions, checkCompressedComponentVersion } from '@aztec/stdlib/versioning';
 import { OtelMetricsAdapter, type TelemetryClient, getTelemetryClient } from '@aztec/telemetry-client';
 
-import { Discv5, type Discv5EventEmitter, type IDiscv5CreateOptions } from '@chainsafe/discv5';
-import { ENR, SignableENR } from '@chainsafe/enr';
 import type { PeerId } from '@libp2p/interface';
 import { type Multiaddr, multiaddr } from '@multiformats/multiaddr';
+import { Discv5, type Discv5EventEmitter, type IDiscv5CreateOptions } from '@nethermindeth/discv5';
+import { ENR, SignableENR } from '@nethermindeth/enr';
 import EventEmitter from 'events';
 
 import type { P2PConfig } from '../../config.js';
diff --git a/yarn-project/p2p/src/services/discv5/discv5_service.test.ts b/yarn-project/p2p/src/services/discv5/discv5_service.test.ts
index 4d532271e367..f37dea66881f 100644
--- a/yarn-project/p2p/src/services/discv5/discv5_service.test.ts
+++ b/yarn-project/p2p/src/services/discv5/discv5_service.test.ts
@@ -5,10 +5,10 @@ import { openTmpStore } from '@aztec/kv-store/lmdb-v2';
 import { emptyChainConfig } from '@aztec/stdlib/config';
 import { getTelemetryClient } from '@aztec/telemetry-client';
 
-import type { IDiscv5CreateOptions } from '@chainsafe/discv5';
 import { jest } from '@jest/globals';
 import type { PeerId } from '@libp2p/interface';
 import { createSecp256k1PeerId } from '@libp2p/peer-id-factory';
+import type { IDiscv5CreateOptions } from '@nethermindeth/discv5';
 
 import { BootstrapNode } from '../../bootstrap/bootstrap.js';
 import { type BootnodeConfig, type P2PConfig, getP2PDefaultConfig } from '../../config.js';
diff --git a/yarn-project/p2p/src/services/dummy_service.ts b/yarn-project/p2p/src/services/dummy_service.ts
index 6818c2e0d6ec..913adfaeb7ee 100644
--- a/yarn-project/p2p/src/services/dummy_service.ts
+++ b/yarn-project/p2p/src/services/dummy_service.ts
@@ -3,8 +3,8 @@ import type { PeerInfo } from '@aztec/stdlib/interfaces/server';
 import type { Gossipable, PeerErrorSeverity } from '@aztec/stdlib/p2p';
 import { Tx, TxHash } from '@aztec/stdlib/tx';
 
-import type { ENR } from '@chainsafe/enr';
 import type { PeerId } from '@libp2p/interface';
+import type { ENR } from '@nethermindeth/enr';
 import EventEmitter from 'events';
 
 import type { PeerManagerInterface } from './peer-manager/interface.js';
diff --git a/yarn-project/p2p/src/services/libp2p/libp2p_service.ts b/yarn-project/p2p/src/services/libp2p/libp2p_service.ts
index 4bf88cb81eb7..58f049b3d92e 100644
--- a/yarn-project/p2p/src/services/libp2p/libp2p_service.ts
+++ b/yarn-project/p2p/src/services/libp2p/libp2p_service.ts
@@ -28,7 +28,6 @@ import type { UInt64 } from '@aztec/stdlib/types';
 import { compressComponentVersions } from '@aztec/stdlib/versioning';
 import { Attributes, OtelMetricsAdapter, type TelemetryClient, WithTracer, trackSpan } from '@aztec/telemetry-client';
 
-import { ENR } from '@chainsafe/enr';
 import {
   type GossipSub,
   type GossipSubComponents,
@@ -45,6 +44,7 @@ import { type Message, type MultiaddrConnection, type PeerId, TopicValidatorResu
 import type { ConnectionManager } from '@libp2p/interface-internal';
 import { mplex } from '@libp2p/mplex';
 import { tcp } from '@libp2p/tcp';
+import { ENR } from '@nethermindeth/enr';
 import { createLibp2p } from 'libp2p';
 
 import type { P2PConfig } from '../../config.js';
diff --git a/yarn-project/p2p/src/services/peer-manager/peer_manager.test.ts b/yarn-project/p2p/src/services/peer-manager/peer_manager.test.ts
index e7b9081eb0c3..a2e0685c6057 100644
--- a/yarn-project/p2p/src/services/peer-manager/peer_manager.test.ts
+++ b/yarn-project/p2p/src/services/peer-manager/peer_manager.test.ts
@@ -14,12 +14,12 @@ import type {
 import { PeerErrorSeverity } from '@aztec/stdlib/p2p';
 import { Attributes, getTelemetryClient } from '@aztec/telemetry-client';
 
-import { type ENR, SignableENR } from '@chainsafe/enr';
 import { jest } from '@jest/globals';
 import type { PeerId } from '@libp2p/interface';
 import { peerIdFromString } from '@libp2p/peer-id';
 import { createSecp256k1PeerId } from '@libp2p/peer-id-factory';
 import { multiaddr } from '@multiformats/multiaddr';
+import { type ENR, SignableENR } from '@nethermindeth/enr';
 import { type MockProxy, mock } from 'jest-mock-extended';
 import { generatePrivateKey } from 'viem/accounts';
 
diff --git a/yarn-project/p2p/src/services/peer-manager/peer_manager.ts b/yarn-project/p2p/src/services/peer-manager/peer_manager.ts
index 792efa6f4e39..c1f3d1424157 100644
--- a/yarn-project/p2p/src/services/peer-manager/peer_manager.ts
+++ b/yarn-project/p2p/src/services/peer-manager/peer_manager.ts
@@ -9,10 +9,10 @@ import type { PeerInfo, WorldStateSynchronizer } from '@aztec/stdlib/interfaces/
 import type { PeerErrorSeverity } from '@aztec/stdlib/p2p';
 import { type TelemetryClient, trackSpan } from '@aztec/telemetry-client';
 
-import { ENR } from '@chainsafe/enr';
 import type { Connection, PeerId } from '@libp2p/interface';
 import { peerIdFromString } from '@libp2p/peer-id';
 import type { Multiaddr } from '@multiformats/multiaddr';
+import { ENR } from '@nethermindeth/enr';
 import { inspect } from 'util';
 
 import type { P2PConfig } from '../../config.js';
diff --git a/yarn-project/p2p/src/services/service.ts b/yarn-project/p2p/src/services/service.ts
index 4ed6d0d0a38d..f2ef55a58d49 100644
--- a/yarn-project/p2p/src/services/service.ts
+++ b/yarn-project/p2p/src/services/service.ts
@@ -3,8 +3,8 @@ import type { PeerInfo } from '@aztec/stdlib/interfaces/server';
 import type { BlockAttestation, BlockProposal, Gossipable } from '@aztec/stdlib/p2p';
 import type { Tx } from '@aztec/stdlib/tx';
 
-import type { ENR } from '@chainsafe/enr';
 import type { PeerId } from '@libp2p/interface';
+import type { ENR } from '@nethermindeth/enr';
 import type EventEmitter from 'events';
 
 import type { P2PReqRespConfig } from './reqresp/config.js';
diff --git a/yarn-project/p2p/src/test-helpers/make-enrs.ts b/yarn-project/p2p/src/test-helpers/make-enrs.ts
index 685f8ac2cf1d..3446aaf135fc 100644
--- a/yarn-project/p2p/src/test-helpers/make-enrs.ts
+++ b/yarn-project/p2p/src/test-helpers/make-enrs.ts
@@ -1,7 +1,7 @@
 import type { ChainConfig } from '@aztec/stdlib/config';
 
-import { SignableENR } from '@chainsafe/enr';
 import { multiaddr } from '@multiformats/multiaddr';
+import { SignableENR } from '@nethermindeth/enr';
 
 import { convertToMultiaddr, createLibP2PPeerIdFromPrivateKey } from '../util.js';
 import { setAztecEnrKey } from '../versioning.js';
diff --git a/yarn-project/p2p/src/test-helpers/reqresp-nodes.ts b/yarn-project/p2p/src/test-helpers/reqresp-nodes.ts
index 3ca535a1314e..d26653f65e78 100644
--- a/yarn-project/p2p/src/test-helpers/reqresp-nodes.ts
+++ b/yarn-project/p2p/src/test-helpers/reqresp-nodes.ts
@@ -17,7 +17,6 @@ import type { Tx } from '@aztec/stdlib/tx';
 import { compressComponentVersions } from '@aztec/stdlib/versioning';
 import { type TelemetryClient, getTelemetryClient } from '@aztec/telemetry-client';
 
-import { SignableENR } from '@chainsafe/enr';
 import { gossipsub } from '@chainsafe/libp2p-gossipsub';
 import { noise } from '@chainsafe/libp2p-noise';
 import { yamux } from '@chainsafe/libp2p-yamux';
@@ -27,6 +26,7 @@ import type { PeerId } from '@libp2p/interface';
 import { createSecp256k1PeerId } from '@libp2p/peer-id-factory';
 import { tcp } from '@libp2p/tcp';
 import { multiaddr } from '@multiformats/multiaddr';
+import { SignableENR } from '@nethermindeth/enr';
 import getPort from 'get-port';
 import { type Libp2p, type Libp2pOptions, createLibp2p } from 'libp2p';
 
diff --git a/yarn-project/p2p/src/versioning.test.ts b/yarn-project/p2p/src/versioning.test.ts
index de2a5de8de1e..26e5c6a25eb6 100644
--- a/yarn-project/p2p/src/versioning.test.ts
+++ b/yarn-project/p2p/src/versioning.test.ts
@@ -1,7 +1,7 @@
 import { EthAddress } from '@aztec/foundation/eth-address';
 import type { ChainConfig } from '@aztec/stdlib/config';
 
-import type { SignableENR } from '@chainsafe/enr';
+import type { SignableENR } from '@nethermindeth/enr';
 import { type MockProxy, mock } from 'jest-mock-extended';
 
 import { AZTEC_ENR_KEY } from './types/index.js';
diff --git a/yarn-project/p2p/src/versioning.ts b/yarn-project/p2p/src/versioning.ts
index 2ffced6deb20..2b0281184347 100644
--- a/yarn-project/p2p/src/versioning.ts
+++ b/yarn-project/p2p/src/versioning.ts
@@ -9,7 +9,7 @@ import {
   getComponentsVersionsFromConfig,
 } from '@aztec/stdlib/versioning';
 
-import type { SignableENR } from '@chainsafe/enr';
+import type { SignableENR } from '@nethermindeth/enr';
 import xxhashFactory from 'xxhash-wasm';
 
 import { AZTEC_ENR_CLIENT_VERSION_KEY, AZTEC_ENR_KEY } from './types/index.js';
diff --git a/yarn-project/yarn.lock b/yarn-project/yarn.lock
index f753e23c8a13..2fef7f3db940 100644
--- a/yarn-project/yarn.lock
+++ b/yarn-project/yarn.lock
@@ -1748,8 +1748,6 @@ __metadata:
     "@aztec/stdlib": "workspace:^"
     "@aztec/telemetry-client": "workspace:^"
     "@aztec/world-state": "workspace:^"
-    "@chainsafe/discv5": "npm:9.0.0"
-    "@chainsafe/enr": "npm:3.0.0"
     "@chainsafe/libp2p-gossipsub": "npm:13.0.0"
     "@chainsafe/libp2p-noise": "npm:^15.0.0"
     "@chainsafe/libp2p-yamux": "npm:^6.0.2"
@@ -1765,6 +1763,8 @@ __metadata:
     "@libp2p/prometheus-metrics": "npm:^4.2.4"
     "@libp2p/tcp": "npm:9.0.24"
     "@multiformats/multiaddr": "npm:12.1.14"
+    "@nethermindeth/discv5": "npm:9.0.0-backport-306-v4"
+    "@nethermindeth/enr": "npm:3.0.0-backport-306-v4"
     "@types/jest": "npm:^30.0.0"
     "@types/node": "npm:^22.15.17"
     get-port: "npm:^7.1.0"
@@ -2609,41 +2609,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@chainsafe/discv5@npm:9.0.0":
-  version: 9.0.0
-  resolution: "@chainsafe/discv5@npm:9.0.0"
-  dependencies:
-    "@chainsafe/enr": "npm:^3.0.0"
-    "@libp2p/crypto": "npm:^4.0.1"
-    "@libp2p/interface": "npm:^1.1.1"
-    "@multiformats/multiaddr": "npm:^12.1.10"
-    bcrypto: "npm:^5.4.0"
-    bigint-buffer: "npm:^1.1.5"
-    debug: "npm:^4.3.1"
-    lru-cache: "npm:^10.1.0"
-    rlp: "npm:^2.2.6"
-    strict-event-emitter-types: "npm:^2.0.0"
-  checksum: 10/3e9484611b951158c898acff9c3047a377537cca884acffead05937b56c248fa104612eb4f6d4d36b8112da441471f2f7001cce4b14c9f9cb58149ef00b80602
-  languageName: node
-  linkType: hard
-
-"@chainsafe/enr@npm:3.0.0, @chainsafe/enr@npm:^3.0.0":
-  version: 3.0.0
-  resolution: "@chainsafe/enr@npm:3.0.0"
-  dependencies:
-    "@libp2p/crypto": "npm:^4.0.1"
-    "@libp2p/interface": "npm:^1.1.1"
-    "@libp2p/peer-id": "npm:^4.0.4"
-    "@multiformats/multiaddr": "npm:^12.1.10"
-    bigint-buffer: "npm:^1.1.5"
-    ethereum-cryptography: "npm:^2.1.3"
-    rlp: "npm:^2.2.6"
-    uint8-varint: "npm:^2.0.2"
-    uint8arrays: "npm:^5.0.1"
-  checksum: 10/341075578319b6fcd89e7dcc04fdfff187ac27decfc5bde2f34959476059d2c7d879f945c35782dc3c52991101896c4194d4f81638055d20836c4cfdfaff8efb
-  languageName: node
-  linkType: hard
-
 "@chainsafe/is-ip@npm:^2.0.1, @chainsafe/is-ip@npm:^2.0.2":
   version: 2.0.2
   resolution: "@chainsafe/is-ip@npm:2.0.2"
@@ -5135,6 +5100,38 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@nethermindeth/discv5@npm:9.0.0-backport-306-v4":
+  version: 9.0.0-backport-306-v4
+  resolution: "@nethermindeth/discv5@npm:9.0.0-backport-306-v4"
+  dependencies:
+    "@libp2p/crypto": "npm:^4.0.1"
+    "@libp2p/interface": "npm:^1.1.1"
+    "@multiformats/multiaddr": "npm:^12.1.10"
+    "@nethermindeth/enr": "npm:^3.0.0-backport-306-v4"
+    bcrypto: "npm:^5.4.0"
+    debug: "npm:^4.3.1"
+    lru-cache: "npm:^10.1.0"
+    rlp: "npm:^2.2.6"
+    strict-event-emitter-types: "npm:^2.0.0"
+  checksum: 10/e857582f15f62a623a6148fc245aaf536c11185b083d1d79530290c383c45c57f7ad5907fa218d531da8d50c97fc99c9b10b9378633f36967a13e56a571dea2e
+  languageName: node
+  linkType: hard
+
+"@nethermindeth/enr@npm:3.0.0-backport-306-v4, @nethermindeth/enr@npm:^3.0.0-backport-306-v4":
+  version: 3.0.0-backport-306-v4
+  resolution: "@nethermindeth/enr@npm:3.0.0-backport-306-v4"
+  dependencies:
+    "@libp2p/crypto": "npm:^4.0.1"
+    "@libp2p/interface": "npm:^1.1.1"
+    "@libp2p/peer-id": "npm:^4.0.4"
+    "@multiformats/multiaddr": "npm:^12.1.10"
+    ethereum-cryptography: "npm:^2.1.3"
+    rlp: "npm:^2.2.6"
+    uint8-varint: "npm:^2.0.2"
+  checksum: 10/196e8da6b09c06cd683afb7fdd6612b80fae164ec0b0540de9adf4c4377bfe411c6543f5bf31116a466aa233dab5420242a19bd70940a89d69921c9bd409a51e
+  languageName: node
+  linkType: hard
+
 "@noble/ciphers@npm:^0.4.0":
   version: 0.4.1
   resolution: "@noble/ciphers@npm:0.4.1"
@@ -9661,16 +9658,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"bigint-buffer@npm:^1.1.5":
-  version: 1.1.5
-  resolution: "bigint-buffer@npm:1.1.5"
-  dependencies:
-    bindings: "npm:^1.3.0"
-    node-gyp: "npm:latest"
-  checksum: 10/be70c7ad00f5e1a4739251755ef35fe8f183ec34782353cfde0820dcc7c84eefa647c12d75c003650a19c333a0528fde2d4fb9d0c41c724c27cd6b0245d20987
-  languageName: node
-  linkType: hard
-
 "bignumber.js@npm:^9.0.0":
   version: 9.1.2
   resolution: "bignumber.js@npm:9.1.2"
@@ -9706,7 +9693,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"bindings@npm:^1.3.0, bindings@npm:^1.5.0":
+"bindings@npm:^1.5.0":
   version: 1.5.0
   resolution: "bindings@npm:1.5.0"
   dependencies: