diff --git a/submodules/TelegramCore/Sources/MacInternalUpdater.swift b/submodules/TelegramCore/Sources/MacInternalUpdater.swift
index 68a02b46e4..f9d48f6746 100644
--- a/submodules/TelegramCore/Sources/MacInternalUpdater.swift
+++ b/submodules/TelegramCore/Sources/MacInternalUpdater.swift
@@ -17,7 +17,7 @@ public func requestUpdatesXml(account: Account, source: String) -> Signal<Data,
         |> mapToSignal { peerId -> Signal<Peer?, InternalUpdaterError> in
             return account.postbox.transaction { transaction in
                 return peerId != nil ? transaction.getPeer(peerId!) : nil
-                } |> castError(InternalUpdaterError.self)
+            } |> castError(InternalUpdaterError.self)
         }
         |> mapToSignal { peer in
             if let peer = peer, let inputPeer = apiInputPeer(peer) {
@@ -78,7 +78,7 @@ public enum AppUpdateDownloadResult {
     case finished(String)
 }
 
-public func downloadAppUpdate(account: Account, source: String, fileName: String) -> Signal<AppUpdateDownloadResult, InternalUpdaterError> {
+public func downloadAppUpdate(account: Account, source: String, messageId: Int32) -> Signal<AppUpdateDownloadResult, InternalUpdaterError> {
     return resolvePeerByName(account: account, name: source)
         |> castError(InternalUpdaterError.self)
         |> mapToSignal { peerId -> Signal<Peer?, InternalUpdaterError> in
@@ -87,12 +87,12 @@ public func downloadAppUpdate(account: Account, source: String, fileName: String
                 } |> castError(InternalUpdaterError.self)
         }
         |> mapToSignal { peer in
-            if let peer = peer, let inputPeer = apiInputPeer(peer) {
-                return account.network.request(Api.functions.messages.getHistory(peer: inputPeer, offsetId: 0, offsetDate: 0, addOffset: 0, limit: 10, maxId: Int32.max, minId: 0, hash: 0))
+            if let peer = peer, let inputChannel = apiInputChannel(peer) {
+                return account.network.request(Api.functions.channels.getMessages(channel: inputChannel, id: [Api.InputMessage.inputMessageID(id: messageId)]))
                     |> retryRequest
                     |> castError(InternalUpdaterError.self)
-                    |> mapToSignal { result in
-                        switch result {
+                    |> mapToSignal { messages in
+                        switch messages {
                         case let .channelMessages(_, _, _, apiMessages, apiChats, apiUsers):
                             
                             var peers: [PeerId: Peer] = [:]
@@ -113,11 +113,7 @@ public func downloadAppUpdate(account: Account, source: String, fileName: String
                                 }.sorted(by: {
                                     $0.id > $1.id
                                 }).first(where: { value -> Bool in
-                                    if let file = value.media.first as? TelegramMediaFile, file.fileName == fileName {
-                                        return true
-                                    } else {
-                                        return false
-                                    }
+                                    return value.media.first is TelegramMediaFile
                                 }).map { ($0, $0.media.first as! TelegramMediaFile )}
                             
                             if let (message, media) = messageAndFile {