diff --git a/backend/dev_nginx.conf b/backend/dev_nginx.conf
index 59a25ba0..44fef8a5 100644
--- a/backend/dev_nginx.conf
+++ b/backend/dev_nginx.conf
@@ -145,11 +145,11 @@ server {
       proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
       proxy_set_header X-Forwarded-Proto $scheme;
 
-      proxy_pass http://element-web:81;
+      proxy_pass http://element-web:8081;
       proxy_ssl_verify              off;
 
     }
     
     error_page   500 502 503 504  /50x.html;
 
-}
\ No newline at end of file
+}
diff --git a/dev-backend-docker-compose.yml b/dev-backend-docker-compose.yml
index c2786583..da3c3530 100644
--- a/dev-backend-docker-compose.yml
+++ b/dev-backend-docker-compose.yml
@@ -6,7 +6,7 @@ services:
     image: ghcr.io/element-hq/lk-jwt-service:latest-ci
     hostname: auth-server
     environment:
-      - LK_JWT_PORT=8080
+      - LIVEKIT_JWT_PORT=8080
       - LIVEKIT_URL=wss://matrix-rtc.m.localhost/livekit/sfu
       - LIVEKIT_KEY=devkey
       - LIVEKIT_SECRET=secret
@@ -73,11 +73,11 @@ services:
     image: ghcr.io/element-hq/element-web:develop
     pull_policy: always
     volumes:
-      - ./backend/ew.test.config.json:/app/config.json
+      - ./backend/ew.test.config.json:/app/config.json:Z
     environment:
-      ELEMENT_WEB_PORT: 81
+      ELEMENT_WEB_PORT: 8081
     ports:
-      - "8081:81"
+      - "8081:8081"
     networks:
       - ecbackend
 
@@ -91,7 +91,6 @@ services:
       - ./backend/dev_tls_m.localhost.crt:/root/ssl/cert.pem:Z
     ports:
       # HOST_PORT:CONTAINER_PORT
-      - "80:80"
       - "443:443"
       - "8008:80"
       - "4443:443"
diff --git a/package.json b/package.json
index d4ab9213..970b641b 100644
--- a/package.json
+++ b/package.json
@@ -103,7 +103,7 @@
     "lodash-es": "^4.17.21",
     "loglevel": "^1.9.1",
     "matrix-js-sdk": "github:matrix-org/matrix-js-sdk#head=toger5/add-room-key-fallback-on-encryption-manager-not-supported",
-    "matrix-widget-api": "1.11.0",
+    "matrix-widget-api": "^1.13.0",
     "normalize.css": "^8.0.1",
     "observable-hooks": "^4.2.3",
     "pako": "^2.0.4",
@@ -133,8 +133,7 @@
   },
   "resolutions": {
     "@livekit/components-core/rxjs": "^7.8.1",
-    "@livekit/track-processors/@mediapipe/tasks-vision": "^0.10.18",
-    "matrix-widget-api": "1.11.0"
+    "@livekit/track-processors/@mediapipe/tasks-vision": "^0.10.18"
   },
   "packageManager": "yarn@4.7.0"
 }
diff --git a/src/e2ee/matrixKeyProvider.ts b/src/e2ee/matrixKeyProvider.ts
index 9b190ed8..95033f87 100644
--- a/src/e2ee/matrixKeyProvider.ts
+++ b/src/e2ee/matrixKeyProvider.ts
@@ -5,7 +5,7 @@ SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
 Please see LICENSE in the repository root for full details.
 */
 
-import { BaseKeyProvider, createKeyMaterialFromBuffer } from "livekit-client";
+import { BaseKeyProvider } from "livekit-client";
 import { logger } from "matrix-js-sdk/lib/logger";
 import {
   type MatrixRTCSession,
@@ -44,20 +44,29 @@ export class MatrixKeyProvider extends BaseKeyProvider {
     encryptionKeyIndex: number,
     participantId: string,
   ): void => {
-    createKeyMaterialFromBuffer(encryptionKey).then(
-      (keyMaterial) => {
-        this.onSetEncryptionKey(keyMaterial, participantId, encryptionKeyIndex);
+    crypto.subtle
+      .importKey("raw", encryptionKey, "HKDF", false, [
+        "deriveBits",
+        "deriveKey",
+      ])
+      .then(
+        (keyMaterial) => {
+          this.onSetEncryptionKey(
+            keyMaterial,
+            participantId,
+            encryptionKeyIndex,
+          );
 
-        logger.debug(
-          `Sent new key to livekit room=${this.rtcSession?.room.roomId} participantId=${participantId} encryptionKeyIndex=${encryptionKeyIndex}`,
-        );
-      },
-      (e) => {
-        logger.error(
-          `Failed to create key material from buffer for livekit room=${this.rtcSession?.room.roomId} participantId=${participantId} encryptionKeyIndex=${encryptionKeyIndex}`,
-          e,
-        );
-      },
-    );
+          logger.debug(
+            `Sent new key to livekit room=${this.rtcSession?.room.roomId} participantId=${participantId} encryptionKeyIndex=${encryptionKeyIndex}`,
+          );
+        },
+        (e) => {
+          logger.error(
+            `Failed to create key material from buffer for livekit room=${this.rtcSession?.room.roomId} participantId=${participantId} encryptionKeyIndex=${encryptionKeyIndex}`,
+            e,
+          );
+        },
+      );
   };
 }
diff --git a/src/rtcSessionHelpers.ts b/src/rtcSessionHelpers.ts
index 51bc79b8..e083b56c 100644
--- a/src/rtcSessionHelpers.ts
+++ b/src/rtcSessionHelpers.ts
@@ -121,10 +121,9 @@ export async function enterRTCSession(
       ...(useDeviceSessionMemberEvents !== undefined && {
         useLegacyMemberEvents: !useDeviceSessionMemberEvents,
       }),
-      membershipServerSideExpiryTimeout:
+      delayedLeaveEventDelayMs:
         matrixRtcSessionConfig?.membership_server_side_expiry_timeout,
-      membershipKeepAlivePeriod:
-        matrixRtcSessionConfig?.membership_keep_alive_period,
+      networkErrorRetryMs: matrixRtcSessionConfig?.membership_keep_alive_period,
       makeKeyDelay: matrixRtcSessionConfig?.key_rotation_on_leave_delay,
       useExperimentalToDeviceTransport,
     },
diff --git a/tsconfig.json b/tsconfig.json
index be12658e..07632f20 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -3,7 +3,7 @@
     "target": "es2022",
     "module": "es2022",
     "jsx": "react-jsx",
-    "lib": ["es2022", "dom", "dom.iterable"],
+    "lib": ["es2024", "dom", "dom.iterable"],
 
     // From Matrix-JS-SDK
     "strict": true,
diff --git a/yarn.lock b/yarn.lock
index 9e8911a4..61e093b0 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7008,7 +7008,7 @@ __metadata:
     lodash-es: "npm:^4.17.21"
     loglevel: "npm:^1.9.1"
     matrix-js-sdk: "github:matrix-org/matrix-js-sdk#head=toger5/add-room-key-fallback-on-encryption-manager-not-supported"
-    matrix-widget-api: "npm:1.11.0"
+    matrix-widget-api: "npm:^1.13.0"
     normalize.css: "npm:^8.0.1"
     observable-hooks: "npm:^4.2.3"
     pako: "npm:^2.0.4"
@@ -9633,13 +9633,13 @@ __metadata:
   languageName: node
   linkType: hard
 
-"matrix-widget-api@npm:1.11.0":
-  version: 1.11.0
-  resolution: "matrix-widget-api@npm:1.11.0"
+"matrix-widget-api@npm:^1.10.0, matrix-widget-api@npm:^1.13.0":
+  version: 1.13.1
+  resolution: "matrix-widget-api@npm:1.13.1"
   dependencies:
     "@types/events": "npm:^3.0.0"
     events: "npm:^3.2.0"
-  checksum: 10c0/ac35ed8fb2b5df6d186beb64b5faf907ec113d708ad8353bdd8f9196fb3da255561b8807e2e845f39d4cf7ae6af36f90b54c230a0a100556ac7ebd8f18bee848
+  checksum: 10c0/25ded744922755b3eb65f4e171cf6cff1a2e0fe43fc3fecbb13e565e41d8af066daa817dd2c3c7d921b996af399eec3b23df70ab7b682cf422d9cee7ca202512
   languageName: node
   linkType: hard