diff --git a/package.json b/package.json
index fdf1015..c63ac70 100644
--- a/package.json
+++ b/package.json
@@ -16,8 +16,8 @@
         "cors": "^2.8.5",
         "express": "^4.17.1",
         "httpolyglot": "^0.1.2",
-        "mediasoup": "^3.8.4",
-        "mediasoup-client": "^3.6.42",
+        "mediasoup": "^3.9.0",
+        "mediasoup-client": "^3.6.43",
         "ngrok": "^4.2.2",
         "socket.io": "^4.2.0",
         "swagger-ui-express": "^4.1.6",
diff --git a/public/sfu/MediasoupClient.js b/public/sfu/MediasoupClient.js
index 36477de..61fff5e 100644
--- a/public/sfu/MediasoupClient.js
+++ b/public/sfu/MediasoupClient.js
@@ -6269,6 +6269,7 @@
                         const answer = { type: 'answer', sdp: this._remoteSdp.getSdp() };
                         logger.debug('stopSending() | calling pc.setRemoteDescription() [answer:%o]', answer);
                         await this._pc.setRemoteDescription(answer);
+                        this._mapMidTransceiver.delete(localId);
                     }
                     async replaceTrack(localId, track) {
                         this._assertSendDirection();
@@ -6399,6 +6400,7 @@
                         const answer = await this._pc.createAnswer();
                         logger.debug('stopReceiving() | calling pc.setLocalDescription() [answer:%o]', answer);
                         await this._pc.setLocalDescription(answer);
+                        this._mapMidTransceiver.delete(localId);
                     }
                     async pauseReceiving(
                         // eslint-disable-next-line @typescript-eslint/no-unused-vars
@@ -6818,6 +6820,7 @@
                         const answer = { type: 'answer', sdp: this._remoteSdp.getSdp() };
                         logger.debug('stopSending() | calling pc.setRemoteDescription() [answer:%o]', answer);
                         await this._pc.setRemoteDescription(answer);
+                        this._mapMidTransceiver.delete(localId);
                     }
                     async replaceTrack(localId, track) {
                         this._assertSendDirection();
@@ -6947,6 +6950,7 @@
                         const answer = await this._pc.createAnswer();
                         logger.debug('stopReceiving() | calling pc.setLocalDescription() [answer:%o]', answer);
                         await this._pc.setLocalDescription(answer);
+                        this._mapMidTransceiver.delete(localId);
                     }
                     async pauseReceiving(localId) {
                         this._assertRecvDirection();
@@ -7822,6 +7826,7 @@
                         const answer = { type: 'answer', sdp: this._remoteSdp.getSdp() };
                         logger.debug('stopSending() | calling pc.setRemoteDescription() [answer:%o]', answer);
                         await this._pc.setRemoteDescription(answer);
+                        this._mapMidTransceiver.delete(localId);
                     }
                     async replaceTrack(localId, track) {
                         this._assertSendDirection();
@@ -7954,6 +7959,7 @@
                         const answer = await this._pc.createAnswer();
                         logger.debug('stopReceiving() | calling pc.setLocalDescription() [answer:%o]', answer);
                         await this._pc.setLocalDescription(answer);
+                        this._mapMidTransceiver.delete(localId);
                     }
                     async pauseReceiving(localId) {
                         this._assertRecvDirection();
@@ -9451,6 +9457,7 @@
                         const answer = { type: 'answer', sdp: this._remoteSdp.getSdp() };
                         logger.debug('stopSending() | calling pc.setRemoteDescription() [answer:%o]', answer);
                         await this._pc.setRemoteDescription(answer);
+                        this._mapMidTransceiver.delete(localId);
                     }
                     async replaceTrack(localId, track) {
                         this._assertSendDirection();
@@ -9580,6 +9587,7 @@
                         const answer = await this._pc.createAnswer();
                         logger.debug('stopReceiving() | calling pc.setLocalDescription() [answer:%o]', answer);
                         await this._pc.setLocalDescription(answer);
+                        this._mapMidTransceiver.delete(localId);
                     }
                     async pauseReceiving(localId) {
                         this._assertRecvDirection();
@@ -11157,7 +11165,7 @@
                 /**
                  * Expose mediasoup-client version.
                  */
-                exports.version = '3.6.42';
+                exports.version = '3.6.43';
                 /**
                  * Expose parseScalabilityMode() function.
                  */