diff --git a/pkgs/applications/networking/instant-messengers/telegram/tdesktop/default.nix b/pkgs/applications/networking/instant-messengers/telegram/tdesktop/default.nix
index 648af9a92dec..6b47401c5580 100644
--- a/pkgs/applications/networking/instant-messengers/telegram/tdesktop/default.nix
+++ b/pkgs/applications/networking/instant-messengers/telegram/tdesktop/default.nix
@@ -1,6 +1,7 @@
 { lib
 , fetchFromGitHub
 , fetchpatch
+, fetchurl
 , callPackage
 , pkg-config
 , cmake
@@ -70,10 +71,17 @@ let
       cxxStandard = "20";
     };
   };
+  glibmm = glibmm_2_68.overrideAttrs (_: {
+    version = "2.76.0";
+    src = fetchurl {
+      url = "mirror://gnome/sources/glibmm/2.76/glibmm-2.76.0.tar.xz";
+      sha256 = "sha256-hjfYDOq9lP3dbkiXCggqJkVY1KuCaE4V/8h+fvNGKrI=";
+    };
+  });
 in
 stdenv.mkDerivation rec {
   pname = "telegram-desktop";
-  version = "4.6.5";
+  version = "4.7.1";
   # Note: Update via pkgs/applications/networking/instant-messengers/telegram/tdesktop/update.py
 
   # Telegram-Desktop with submodules
@@ -82,7 +90,7 @@ stdenv.mkDerivation rec {
     repo = "tdesktop";
     rev = "v${version}";
     fetchSubmodules = true;
-    sha256 = "0c65ry82ffmh1qzc2lnsyjs78r9jllv62p9vglpz0ikg86zf36sk";
+    sha256 = "1qv8029xzp2j1j58b1lkw3q53cwaaazvp2la80mfbjv348c29iyk";
   };
 
   patches = [
@@ -140,7 +148,7 @@ stdenv.mkDerivation rec {
     range-v3
     tl-expected
     hunspell
-    glibmm_2_68
+    glibmm
     webkitgtk_4_1
     jemalloc
     rnnoise
diff --git a/pkgs/applications/networking/instant-messengers/telegram/tdesktop/tg_owt.nix b/pkgs/applications/networking/instant-messengers/telegram/tdesktop/tg_owt.nix
index 713069ff95a3..6e57a81dc296 100644
--- a/pkgs/applications/networking/instant-messengers/telegram/tdesktop/tg_owt.nix
+++ b/pkgs/applications/networking/instant-messengers/telegram/tdesktop/tg_owt.nix
@@ -9,13 +9,13 @@
 
 stdenv.mkDerivation {
   pname = "tg_owt";
-  version = "unstable-2023-01-05";
+  version = "unstable-2023-03-14";
 
   src = fetchFromGitHub {
     owner = "desktop-app";
     repo = "tg_owt";
-    rev = "5098730b9eb6173f0b52068fe2555b7c1015123a";
-    sha256 = "0dnh0l9qb9q43cvm4wfgmgqp48grqqz9fb7f48nvys1b6pzhh3pk";
+    rev = "1a18da2ed4d5ce134e984d1586b915738e0da257";
+    sha256 = "18srnl688ng8grfpmgcjpdyr4cw87yjdvyw94b2jjq5jmnq9n3a3";
     fetchSubmodules = true;
   };