diff --git a/packages/libp2p-peer-id-factory/package.json b/packages/libp2p-peer-id-factory/package.json
index d79dbd3..604b795 100644
--- a/packages/libp2p-peer-id-factory/package.json
+++ b/packages/libp2p-peer-id-factory/package.json
@@ -147,13 +147,13 @@
     "@libp2p/interface-peer-id": "^2.0.0",
     "@libp2p/peer-id": "^2.0.0",
     "multiformats": "^11.0.0",
-    "protons-runtime": "^4.0.1",
+    "protons-runtime": "^5.0.0",
     "uint8arraylist": "^2.0.0",
     "uint8arrays": "^4.0.2"
   },
   "devDependencies": {
     "aegir": "^38.1.0",
-    "protons": "^6.0.0",
+    "protons": "^7.0.2",
     "util": "^0.12.4"
   },
   "typedoc": {
diff --git a/packages/libp2p-peer-id-factory/src/index.ts b/packages/libp2p-peer-id-factory/src/index.ts
index c0e4240..eaf4147 100644
--- a/packages/libp2p-peer-id-factory/src/index.ts
+++ b/packages/libp2p-peer-id-factory/src/index.ts
@@ -62,7 +62,7 @@ export async function createFromProtobuf (buf: Uint8Array): Promise<PeerId> {
   } = PeerIdProto.decode(buf)
 
   return await createFromParts(
-    id,
+    id ?? new Uint8Array(0),
     privKey,
     pubKey
   )
diff --git a/packages/libp2p-peer-id-factory/src/proto.proto b/packages/libp2p-peer-id-factory/src/proto.proto
index 989958a..39f8868 100644
--- a/packages/libp2p-peer-id-factory/src/proto.proto
+++ b/packages/libp2p-peer-id-factory/src/proto.proto
@@ -1,7 +1,7 @@
 syntax = "proto3";
 
 message PeerIdProto {
-  required bytes id = 1;
+  optional bytes id = 1;
   optional bytes pubKey = 2;
   optional bytes privKey = 3;
 }
diff --git a/packages/libp2p-peer-id-factory/src/proto.ts b/packages/libp2p-peer-id-factory/src/proto.ts
index 2fd3cb1..bcd0a25 100644
--- a/packages/libp2p-peer-id-factory/src/proto.ts
+++ b/packages/libp2p-peer-id-factory/src/proto.ts
@@ -2,13 +2,14 @@
 /* eslint-disable complexity */
 /* eslint-disable @typescript-eslint/no-namespace */
 /* eslint-disable @typescript-eslint/no-unnecessary-boolean-literal-compare */
+/* eslint-disable @typescript-eslint/no-empty-interface */
 
 import { encodeMessage, decodeMessage, message } from 'protons-runtime'
-import type { Uint8ArrayList } from 'uint8arraylist'
 import type { Codec } from 'protons-runtime'
+import type { Uint8ArrayList } from 'uint8arraylist'
 
 export interface PeerIdProto {
-  id: Uint8Array
+  id?: Uint8Array
   pubKey?: Uint8Array
   privKey?: Uint8Array
 }
@@ -23,7 +24,7 @@ export namespace PeerIdProto {
           w.fork()
         }
 
-        if (opts.writeDefaults === true || (obj.id != null && obj.id.byteLength > 0)) {
+        if (obj.id != null) {
           w.uint32(10)
           w.bytes(obj.id)
         }
@@ -42,9 +43,7 @@ export namespace PeerIdProto {
           w.ldelim()
         }
       }, (reader, length) => {
-        const obj: any = {
-          id: new Uint8Array(0)
-        }
+        const obj: any = {}
 
         const end = length == null ? reader.len : reader.pos + length
 
@@ -74,7 +73,7 @@ export namespace PeerIdProto {
     return _codec
   }
 
-  export const encode = (obj: PeerIdProto): Uint8Array => {
+  export const encode = (obj: Partial<PeerIdProto>): Uint8Array => {
     return encodeMessage(obj, PeerIdProto.codec())
   }