diff --git a/Telegram/Resources/uwp/AppX/AppxManifest.xml b/Telegram/Resources/uwp/AppX/AppxManifest.xml
index cb9419d4e..ceba0fce0 100644
--- a/Telegram/Resources/uwp/AppX/AppxManifest.xml
+++ b/Telegram/Resources/uwp/AppX/AppxManifest.xml
@@ -9,7 +9,7 @@
   <Identity Name="TelegramMessengerLLP.TelegramDesktop"
     ProcessorArchitecture="ARCHITECTURE"
     Publisher="CN=536BC709-8EE1-4478-AF22-F0F0F26FF64A"
-    Version="2.4.12.0" />
+    Version="2.4.13.0" />
   <Properties>
     <DisplayName>Telegram Desktop</DisplayName>
     <PublisherDisplayName>Telegram FZ-LLC</PublisherDisplayName>
diff --git a/Telegram/Resources/winrc/Telegram.rc b/Telegram/Resources/winrc/Telegram.rc
index 6c6b9dc5d..c1a335b6a 100644
--- a/Telegram/Resources/winrc/Telegram.rc
+++ b/Telegram/Resources/winrc/Telegram.rc
@@ -44,8 +44,8 @@ IDI_ICON1               ICON                    "..\\art\\icon256.ico"
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 2,4,12,0
- PRODUCTVERSION 2,4,12,0
+ FILEVERSION 2,4,13,0
+ PRODUCTVERSION 2,4,13,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -62,10 +62,10 @@ BEGIN
         BEGIN
             VALUE "CompanyName", "Telegram FZ-LLC"
             VALUE "FileDescription", "Telegram Desktop"
-            VALUE "FileVersion", "2.4.12.0"
+            VALUE "FileVersion", "2.4.13.0"
             VALUE "LegalCopyright", "Copyright (C) 2014-2020"
             VALUE "ProductName", "Telegram Desktop"
-            VALUE "ProductVersion", "2.4.12.0"
+            VALUE "ProductVersion", "2.4.13.0"
         END
     END
     BLOCK "VarFileInfo"
diff --git a/Telegram/Resources/winrc/Updater.rc b/Telegram/Resources/winrc/Updater.rc
index 805fdc3f4..2c83c4a03 100644
--- a/Telegram/Resources/winrc/Updater.rc
+++ b/Telegram/Resources/winrc/Updater.rc
@@ -35,8 +35,8 @@ LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 2,4,12,0
- PRODUCTVERSION 2,4,12,0
+ FILEVERSION 2,4,13,0
+ PRODUCTVERSION 2,4,13,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -53,10 +53,10 @@ BEGIN
         BEGIN
             VALUE "CompanyName", "Telegram FZ-LLC"
             VALUE "FileDescription", "Telegram Desktop Updater"
-            VALUE "FileVersion", "2.4.12.0"
+            VALUE "FileVersion", "2.4.13.0"
             VALUE "LegalCopyright", "Copyright (C) 2014-2020"
             VALUE "ProductName", "Telegram Desktop"
-            VALUE "ProductVersion", "2.4.12.0"
+            VALUE "ProductVersion", "2.4.13.0"
         END
     END
     BLOCK "VarFileInfo"
diff --git a/Telegram/SourceFiles/core/version.h b/Telegram/SourceFiles/core/version.h
index 36394117b..9518f32be 100644
--- a/Telegram/SourceFiles/core/version.h
+++ b/Telegram/SourceFiles/core/version.h
@@ -22,7 +22,7 @@ constexpr auto AppId = "{53F49750-6209-4FBF-9CA8-7A333C87D1ED}"_cs;
 constexpr auto AppNameOld = "Telegram Win (Unofficial)"_cs;
 constexpr auto AppName = "Telegram Desktop"_cs;
 constexpr auto AppFile = "Telegram"_cs;
-constexpr auto AppVersion = 2004012;
-constexpr auto AppVersionStr = "2.4.12";
+constexpr auto AppVersion = 2004013;
+constexpr auto AppVersionStr = "2.4.13";
 constexpr auto AppBetaVersion = true;
 constexpr auto AppAlphaVersion = TDESKTOP_ALPHA_VERSION;
diff --git a/Telegram/build/version b/Telegram/build/version
index 813f35cdf..13797dc1b 100644
--- a/Telegram/build/version
+++ b/Telegram/build/version
@@ -1,7 +1,7 @@
-AppVersion         2004012
+AppVersion         2004013
 AppVersionStrMajor 2.4
-AppVersionStrSmall 2.4.12
-AppVersionStr      2.4.12
+AppVersionStrSmall 2.4.13
+AppVersionStr      2.4.13
 BetaChannel        1
 AlphaVersion       0
-AppVersionOriginal 2.4.12.beta
+AppVersionOriginal 2.4.13.beta
diff --git a/changelog.txt b/changelog.txt
index 3c480f30e..d3c45d163 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,3 +1,8 @@
+2.4.13 beta (09.12.20)
+
+- Fix voice messages sending.
+- Fix crash in voice calls.
+
 2.4.12 beta (09.12.20)
 
 - Voice chats in groups. (alpha version)