diff --git a/Telegram/Resources/uwp/AppX/AppxManifest.xml b/Telegram/Resources/uwp/AppX/AppxManifest.xml
index ef4280fef..d60cd07b2 100644
--- a/Telegram/Resources/uwp/AppX/AppxManifest.xml
+++ b/Telegram/Resources/uwp/AppX/AppxManifest.xml
@@ -10,7 +10,7 @@
   <Identity Name="TelegramMessengerLLP.TelegramDesktop"
     ProcessorArchitecture="ARCHITECTURE"
     Publisher="CN=536BC709-8EE1-4478-AF22-F0F0F26FF64A"
-    Version="4.12.0.0" />
+    Version="4.12.1.0" />
   <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 69de28dc8..8883098f2 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 4,12,0,0
- PRODUCTVERSION 4,12,0,0
+ FILEVERSION 4,12,1,0
+ PRODUCTVERSION 4,12,1,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -62,10 +62,10 @@ BEGIN
         BEGIN
             VALUE "CompanyName", "Telegram FZ-LLC"
             VALUE "FileDescription", "Telegram Desktop"
-            VALUE "FileVersion", "4.12.0.0"
+            VALUE "FileVersion", "4.12.1.0"
             VALUE "LegalCopyright", "Copyright (C) 2014-2023"
             VALUE "ProductName", "Telegram Desktop"
-            VALUE "ProductVersion", "4.12.0.0"
+            VALUE "ProductVersion", "4.12.1.0"
         END
     END
     BLOCK "VarFileInfo"
diff --git a/Telegram/Resources/winrc/Updater.rc b/Telegram/Resources/winrc/Updater.rc
index 2b17faabd..cc4cc845a 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 4,12,0,0
- PRODUCTVERSION 4,12,0,0
+ FILEVERSION 4,12,1,0
+ PRODUCTVERSION 4,12,1,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -53,10 +53,10 @@ BEGIN
         BEGIN
             VALUE "CompanyName", "Telegram FZ-LLC"
             VALUE "FileDescription", "Telegram Desktop Updater"
-            VALUE "FileVersion", "4.12.0.0"
+            VALUE "FileVersion", "4.12.1.0"
             VALUE "LegalCopyright", "Copyright (C) 2014-2023"
             VALUE "ProductName", "Telegram Desktop"
-            VALUE "ProductVersion", "4.12.0.0"
+            VALUE "ProductVersion", "4.12.1.0"
         END
     END
     BLOCK "VarFileInfo"
diff --git a/Telegram/SourceFiles/core/version.h b/Telegram/SourceFiles/core/version.h
index f47adfecc..4291098d8 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 = 4012000;
-constexpr auto AppVersionStr = "4.12";
+constexpr auto AppVersion = 4012001;
+constexpr auto AppVersionStr = "4.12.1";
 constexpr auto AppBetaVersion = false;
 constexpr auto AppAlphaVersion = TDESKTOP_ALPHA_VERSION;
diff --git a/Telegram/build/version b/Telegram/build/version
index 9eccfd632..d1f1bb7ca 100644
--- a/Telegram/build/version
+++ b/Telegram/build/version
@@ -1,7 +1,7 @@
-AppVersion         4012000
+AppVersion         4012001
 AppVersionStrMajor 4.12
-AppVersionStrSmall 4.12
-AppVersionStr      4.12.0
+AppVersionStrSmall 4.12.1
+AppVersionStr      4.12.1
 BetaChannel        0
 AlphaVersion       0
-AppVersionOriginal 4.12
+AppVersionOriginal 4.12.1
diff --git a/changelog.txt b/changelog.txt
index 0ac4e3017..e49bb5ada 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,3 +1,7 @@
+4.12.1 (01.12.23)
+
+- Fix assertion violation with imported messages.
+
 4.12 (30.11.23)
 
 - Similar channels.