diff --git a/package.json b/package.json
index ee4c5f5b3..67c1bee04 100644
--- a/package.json
+++ b/package.json
@@ -63,7 +63,7 @@
     "i18next-http-backend": "^2.0.0",
     "livekit-client": "^2.0.2",
     "lodash": "^4.17.21",
-    "matrix-js-sdk": "github:matrix-org/matrix-js-sdk#50078b1b93b89bb94a631524ef6f673eb244a39a",
+    "matrix-js-sdk": "github:matrix-org/matrix-js-sdk#15e49b4575b426359803f4a0cb0d97bd48bc55fc",
     "matrix-widget-api": "^1.8.2",
     "normalize.css": "^8.0.1",
     "observable-hooks": "^4.2.3",
diff --git a/src/analytics/PosthogEvents.ts b/src/analytics/PosthogEvents.ts
index 7600fb7ce..1776b4ed2 100644
--- a/src/analytics/PosthogEvents.ts
+++ b/src/analytics/PosthogEvents.ts
@@ -16,6 +16,7 @@ limitations under the License.
 
 import { DisconnectReason } from "livekit-client";
 import { logger } from "matrix-js-sdk/src/logger";
+import { MatrixRTCSession } from "matrix-js-sdk/src/matrixrtc";
 
 import {
   IPosthogEvent,
@@ -43,6 +44,12 @@ interface CallEnded extends IPosthogEvent {
   callParticipantsMax: number;
   callDuration: number;
   encryption: EncryptionScheme;
+  toDeviceEncryptionKeysSent: number;
+  toDeviceEncryptionKeysReceived: number;
+  toDeviceEncryptionKeysReceivedAverageAge: number;
+  roomEventEncryptionKeysSent: number;
+  roomEventEncryptionKeysReceived: number;
+  roomEventEncryptionKeysReceivedAverageAge: number;
 }
 
 export class CallEndedTracker {
@@ -66,6 +73,7 @@ export class CallEndedTracker {
     callId: string,
     callParticipantsNow: number,
     e2eeType: E2eeType,
+    rtcSession: MatrixRTCSession,
     sendInstantly: boolean,
   ): void {
     PosthogAnalytics.instance.trackEvent<CallEnded>(
@@ -76,6 +84,26 @@ export class CallEndedTracker {
         callParticipantsOnLeave: callParticipantsNow,
         callDuration: (Date.now() - this.cache.startTime.getTime()) / 1000,
         encryption: mapE2eeType(e2eeType),
+        toDeviceEncryptionKeysSent:
+          rtcSession.statistics.counters.toDeviceEncryptionKeysSent,
+        toDeviceEncryptionKeysReceived:
+          rtcSession.statistics.counters.toDeviceEncryptionKeysReceived,
+        toDeviceEncryptionKeysReceivedAverageAge:
+          rtcSession.statistics.counters.toDeviceEncryptionKeysReceived > 0
+            ? rtcSession.statistics.totals
+                .toDeviceEncryptionKeysReceivedTotalAge /
+              rtcSession.statistics.counters.toDeviceEncryptionKeysReceived
+            : 0,
+        roomEventEncryptionKeysSent:
+          rtcSession.statistics.counters.roomEventEncryptionKeysSent,
+        roomEventEncryptionKeysReceived:
+          rtcSession.statistics.counters.roomEventEncryptionKeysReceived,
+        roomEventEncryptionKeysReceivedAverageAge:
+          rtcSession.statistics.counters.roomEventEncryptionKeysReceived > 0
+            ? rtcSession.statistics.totals
+                .roomEventEncryptionKeysReceivedTotalAge /
+              rtcSession.statistics.counters.roomEventEncryptionKeysReceived
+            : 0,
       },
       { send_instantly: sendInstantly },
     );
diff --git a/src/room/GroupCallView.tsx b/src/room/GroupCallView.tsx
index 83c0168d0..7e9e3d604 100644
--- a/src/room/GroupCallView.tsx
+++ b/src/room/GroupCallView.tsx
@@ -224,6 +224,7 @@ export const GroupCallView: FC<Props> = ({
         rtcSession.room.roomId,
         rtcSession.memberships.length,
         matrixInfo.e2eeSystem.kind,
+        rtcSession,
         sendInstantly,
       );