diff --git a/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/sync/handler/SyncResponsePostTreatmentAggregatorHandler.kt b/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/sync/handler/SyncResponsePostTreatmentAggregatorHandler.kt
index 25de05602a..ed8f88dfdd 100644
--- a/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/sync/handler/SyncResponsePostTreatmentAggregatorHandler.kt
+++ b/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/sync/handler/SyncResponsePostTreatmentAggregatorHandler.kt
@@ -93,7 +93,7 @@ internal class SyncResponsePostTreatmentAggregatorHandler @Inject constructor(
 
     private fun List<User>.saveLocally() {
         val userEntities = map { user -> UserEntityFactory.create(user) }
-        monarchy.doWithRealm {
+        monarchy.writeAsync {
             it.insertOrUpdate(userEntities)
         }
     }