diff --git a/package-lock.json b/package-lock.json
index d8b0b1f..ef9b8a8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@xtr-dev/rondevu-client",
-  "version": "0.7.6",
+  "version": "0.7.7",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@xtr-dev/rondevu-client",
-      "version": "0.7.6",
+      "version": "0.7.7",
       "license": "MIT",
       "dependencies": {
         "@xtr-dev/rondevu-client": "^0.5.1"
diff --git a/package.json b/package.json
index 8f5a9d3..c2ff57a 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@xtr-dev/rondevu-client",
-  "version": "0.7.6",
+  "version": "0.7.7",
   "description": "TypeScript client for Rondevu topic-based peer discovery and signaling server",
   "type": "module",
   "main": "dist/index.js",
diff --git a/src/peer/answering-state.ts b/src/peer/answering-state.ts
index 75fcd8a..2594caa 100644
--- a/src/peer/answering-state.ts
+++ b/src/peer/answering-state.ts
@@ -28,7 +28,7 @@ export class AnsweringState extends PeerState {
 
       // Send answer to server BEFORE setLocalDescription
       // This registers us as the answerer so ICE candidates will be accepted
-      await this.peer.offersApi.answer(offerId, answer.sdp!);
+      await this.peer.offersApi.answer(offerId, answer.sdp!, options.secret);
 
       // Enable trickle ICE - set up handler before ICE gathering starts
       this.setupIceCandidateHandler();
diff --git a/src/peer/creating-offer-state.ts b/src/peer/creating-offer-state.ts
index 2dc1bcf..babb1b4 100644
--- a/src/peer/creating-offer-state.ts
+++ b/src/peer/creating-offer-state.ts
@@ -36,7 +36,8 @@ export class CreatingOfferState extends PeerState {
       const offers = await this.peer.offersApi.create([{
         sdp: offer.sdp!,
         topics: options.topics,
-        ttl: options.ttl || 300000
+        ttl: options.ttl || 300000,
+        secret: options.secret
       }]);
 
       const offerId = offers[0].id;
diff --git a/src/peer/types.ts b/src/peer/types.ts
index f2a4a05..730d1b7 100644
--- a/src/peer/types.ts
+++ b/src/peer/types.ts
@@ -22,6 +22,8 @@ export interface PeerOptions {
   topics: string[];
   /** How long the offer should live (milliseconds) */
   ttl?: number;
+  /** Optional secret to protect the offer (max 128 characters) */
+  secret?: string;
   /** Whether to create a data channel automatically (for offerer) */
   createDataChannel?: boolean;
   /** Label for the automatically created data channel */