diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 69805cfcd..c55527011 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -192,10 +192,10 @@ importers:
         version: 1.9.2
       matrix-js-sdk:
         specifier: github:matrix-org/matrix-js-sdk#develop
-        version: https://codeload.github.com/matrix-org/matrix-js-sdk/tar.gz/fa4772a4ddd335a5a8bfbf8bb21df49b70f7a999
+        version: https://codeload.github.com/matrix-org/matrix-js-sdk/tar.gz/4df2f2bfb5826c25f05d9535a8556acecaf2e570
       matrix-widget-api:
         specifier: ^1.18.0
-        version: 1.19.0
+        version: 1.20.0
       node-stdlib-browser:
         specifier: ^1.3.1
         version: 1.3.1
@@ -4673,13 +4673,13 @@ packages:
   matrix-events-sdk@0.0.1:
     resolution: {integrity: sha512-1QEOsXO+bhyCroIe2/A5OwaxHvBm7EsSQ46DEDn8RBIfQwN5HWBpFvyWWR4QY0KHPPnnJdI99wgRiAl7Ad5qaA==}
 
-  matrix-js-sdk@https://codeload.github.com/matrix-org/matrix-js-sdk/tar.gz/fa4772a4ddd335a5a8bfbf8bb21df49b70f7a999:
-    resolution: {gitHosted: true, integrity: sha512-qF8++74MX36KS1KEw6Lc8HHXgZ6nHD1oUU4yBZUj5vVPvZTIspk1lOGztkFmizE5vmLAHd5tdadL9Xu1Asy4bA==, tarball: https://codeload.github.com/matrix-org/matrix-js-sdk/tar.gz/fa4772a4ddd335a5a8bfbf8bb21df49b70f7a999}
-    version: 42.3.0
+  matrix-js-sdk@https://codeload.github.com/matrix-org/matrix-js-sdk/tar.gz/4df2f2bfb5826c25f05d9535a8556acecaf2e570:
+    resolution: {gitHosted: true, integrity: sha512-b1o6ywaPY9jakj+3GIgx3samM9AbqohzPQ5nZKbyOGYB16IHQtNMyjEo/PY0fW/s0uwBVApEHNb/MMtN40c/rQ==, tarball: https://codeload.github.com/matrix-org/matrix-js-sdk/tar.gz/4df2f2bfb5826c25f05d9535a8556acecaf2e570}
+    version: 43.0.0
     engines: {node: '>=22.0.0'}
 
-  matrix-widget-api@1.19.0:
-    resolution: {integrity: sha512-Qe7L6G1mQJphBC47/Bzp5ljPIK1UARgLiuGgS+/KmEs/eaNHkQ3+ArD0/0kvMV+d6kCGAZ9OKRqsnuPjizI+tw==}
+  matrix-widget-api@1.20.0:
+    resolution: {integrity: sha512-qwFP37rgns7mPesM5/vvZgknzb+kvyRB5BISv5sCuBxsGMceMr+Kogf7OkjRxBXdMCPBFuf6gIuYRe5S+lpzQw==}
 
   md5.js@1.3.5:
     resolution: {integrity: sha512-xitP+WxNPcTTOgnTJcrhM0xvdPepipPSf3I8EIpGKeFLjt3PlJLIDG3u8EX53ZIubkb+5U2+3rELYpEhHhzdkg==}
@@ -10227,7 +10227,7 @@ snapshots:
 
   matrix-events-sdk@0.0.1: {}
 
-  matrix-js-sdk@https://codeload.github.com/matrix-org/matrix-js-sdk/tar.gz/fa4772a4ddd335a5a8bfbf8bb21df49b70f7a999:
+  matrix-js-sdk@https://codeload.github.com/matrix-org/matrix-js-sdk/tar.gz/4df2f2bfb5826c25f05d9535a8556acecaf2e570:
     dependencies:
       '@babel/runtime': 8.0.0
       '@matrix-org/matrix-sdk-crypto-wasm': 18.9.0
@@ -10236,12 +10236,12 @@ snapshots:
       content-type: 3.1.1
       loglevel: 1.9.2
       matrix-events-sdk: 0.0.1
-      matrix-widget-api: 1.19.0
+      matrix-widget-api: 1.20.0
       p-retry: 8.0.1
       sdp-transform: 3.0.0
       unhomoglyph: 1.0.6
 
-  matrix-widget-api@1.19.0:
+  matrix-widget-api@1.20.0:
     dependencies:
       '@types/events': 3.0.3
       events: 3.3.0
diff --git a/sdk/src/matrixrtc/LocalMembership.test.ts b/sdk/src/matrixrtc/LocalMembership.test.ts
index 0805d1084..dec118874 100644
--- a/sdk/src/matrixrtc/LocalMembership.test.ts
+++ b/sdk/src/matrixrtc/LocalMembership.test.ts
@@ -136,7 +136,7 @@ function setup(preparedTransportWithErrors$?: Observable<PreparedTransport>): {
     joinMatrixRTC,
     membershipManagerError$,
     matrixRTCSession: {
-      leaveRoomSession: vi.fn(async () => Promise.resolve(true)),
+      leave: vi.fn(async () => Promise.resolve(true)),
     },
     delayId$,
     timings: defaultSessionTimings,
diff --git a/sdk/src/matrixrtc/LocalMembership.ts b/sdk/src/matrixrtc/LocalMembership.ts
index aa142c425..3482b3224 100644
--- a/sdk/src/matrixrtc/LocalMembership.ts
+++ b/sdk/src/matrixrtc/LocalMembership.ts
@@ -66,7 +66,7 @@ interface Props {
   ) => void;
   /** The membership manager giving up on keeping the membership alive. */
   membershipManagerError$: Observable<unknown>;
-  matrixRTCSession: Pick<JsSdkRTCSession, "leaveRoomSession">;
+  matrixRTCSession: Pick<JsSdkRTCSession, "leave">;
   /** The id of the delayed leave event, for the backend to take over. */
   delayId$: Behavior<string | null>;
   timings: SessionTimings;
@@ -129,7 +129,7 @@ export function createLocalMembership$({
       }
       return Promise.resolve(async (): Promise<void> => {
         try {
-          await matrixRTCSession.leaveRoomSession(1000);
+          await matrixRTCSession.leave(1000);
         } catch (e) {
           logger.error("Failed to leave the session", e);
         }
diff --git a/sdk/src/utils/test.ts b/sdk/src/utils/test.ts
index d7af9cbd1..3985cc915 100644
--- a/sdk/src/utils/test.ts
+++ b/sdk/src/utils/test.ts
@@ -257,7 +257,7 @@ export class MockRTCSession extends TypedEventEmitter<
     counters: {},
   };
 
-  public leaveRoomSession: ReturnType<typeof vitest.fn> = vitest
+  public leave: ReturnType<typeof vitest.fn> = vitest
     .fn()
     .mockResolvedValue(undefined);