diff --git a/Telegram/Resources/uwp/AppX/AppxManifest.xml b/Telegram/Resources/uwp/AppX/AppxManifest.xml
index 23d54deca..fa66a0a8a 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="1.2.0.0" />
+    Version="1.2.1.0" />
   <Properties>
     <DisplayName>Telegram Desktop</DisplayName>
     <PublisherDisplayName>Telegram Messenger LLP</PublisherDisplayName>
diff --git a/Telegram/Resources/winrc/Telegram.rc b/Telegram/Resources/winrc/Telegram.rc
index 4704a2ac9..8101064bb 100644
--- a/Telegram/Resources/winrc/Telegram.rc
+++ b/Telegram/Resources/winrc/Telegram.rc
@@ -34,8 +34,8 @@ IDI_ICON1               ICON                    "..\\art\\icon256.ico"
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 1,2,0,0
- PRODUCTVERSION 1,2,0,0
+ FILEVERSION 1,2,1,0
+ PRODUCTVERSION 1,2,1,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -52,10 +52,10 @@ BEGIN
         BEGIN
             VALUE "CompanyName", "Telegram Messenger LLP"
             VALUE "FileDescription", "Telegram Desktop"
-            VALUE "FileVersion", "1.2.0.0"
+            VALUE "FileVersion", "1.2.1.0"
             VALUE "LegalCopyright", "Copyright (C) 2014-2017"
             VALUE "ProductName", "Telegram Desktop"
-            VALUE "ProductVersion", "1.2.0.0"
+            VALUE "ProductVersion", "1.2.1.0"
         END
     END
     BLOCK "VarFileInfo"
diff --git a/Telegram/Resources/winrc/Updater.rc b/Telegram/Resources/winrc/Updater.rc
index 08802ea64..01a836f53 100644
--- a/Telegram/Resources/winrc/Updater.rc
+++ b/Telegram/Resources/winrc/Updater.rc
@@ -25,8 +25,8 @@ LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 1,2,0,0
- PRODUCTVERSION 1,2,0,0
+ FILEVERSION 1,2,1,0
+ PRODUCTVERSION 1,2,1,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -43,10 +43,10 @@ BEGIN
         BEGIN
             VALUE "CompanyName", "Telegram Messenger LLP"
             VALUE "FileDescription", "Telegram Desktop Updater"
-            VALUE "FileVersion", "1.2.0.0"
+            VALUE "FileVersion", "1.2.1.0"
             VALUE "LegalCopyright", "Copyright (C) 2014-2017"
             VALUE "ProductName", "Telegram Desktop"
-            VALUE "ProductVersion", "1.2.0.0"
+            VALUE "ProductVersion", "1.2.1.0"
         END
     END
     BLOCK "VarFileInfo"
diff --git a/Telegram/SourceFiles/core/version.h b/Telegram/SourceFiles/core/version.h
index 5323b7c62..2dae97274 100644
--- a/Telegram/SourceFiles/core/version.h
+++ b/Telegram/SourceFiles/core/version.h
@@ -24,7 +24,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 
 #define BETA_VERSION_MACRO (0ULL)
 
-constexpr int AppVersion = 1002000;
-constexpr str_const AppVersionStr = "1.2";
+constexpr int AppVersion = 1002001;
+constexpr str_const AppVersionStr = "1.2.1";
 constexpr bool AppAlphaVersion = false;
 constexpr uint64 AppBetaVersion = BETA_VERSION_MACRO;
diff --git a/Telegram/build/version b/Telegram/build/version
index 36368f0f2..f065efbda 100644
--- a/Telegram/build/version
+++ b/Telegram/build/version
@@ -1,6 +1,6 @@
-AppVersion         1002000
+AppVersion         1002001
 AppVersionStrMajor 1.2
-AppVersionStrSmall 1.2
-AppVersionStr      1.2.0
+AppVersionStrSmall 1.2.1
+AppVersionStr      1.2.1
 AlphaChannel       0
 BetaVersion        0
diff --git a/changelog.txt b/changelog.txt
index f54bbe4e7..a8ec24501 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,3 +1,7 @@
+1.2.1 alpha (12.12.17)
+
+- Bug fixes and other minor improvements.
+
 1.2.0 (10.12.17)
 
 - Radically improved navigation. New side panel on the right with quick access to shared media and group members.