diff --git a/pkgs/applications/networking/instant-messengers/telegram/telegram-desktop/unwrapped.nix b/pkgs/applications/networking/instant-messengers/telegram/telegram-desktop/unwrapped.nix
index 5af1e743f91b..e1c442e386bf 100644
--- a/pkgs/applications/networking/instant-messengers/telegram/telegram-desktop/unwrapped.nix
+++ b/pkgs/applications/networking/instant-messengers/telegram/telegram-desktop/unwrapped.nix
@@ -45,14 +45,14 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "telegram-desktop-unwrapped";
-  version = "6.6.2";
+  version = "6.7.5";
 
   src = fetchFromGitHub {
     owner = "telegramdesktop";
     repo = "tdesktop";
     rev = "v${finalAttrs.version}";
     fetchSubmodules = true;
-    hash = "sha256-sMg7h+he+mlqTu8wSLAsSJzCmwTX3t+suTEY77RH+aI=";
+    hash = "sha256-HsXNTZY/+Xz7pIT7durOd5T/u7jML0rVBOPb4pnIXow=";
   };
 
   nativeBuildInputs = [
@@ -104,6 +104,8 @@ stdenv.mkDerivation (finalAttrs: {
     # We're allowed to used the API ID of the Snap package:
     (lib.cmakeFeature "TDESKTOP_API_ID" "611335")
     (lib.cmakeFeature "TDESKTOP_API_HASH" "d524b414d21f4d37f08684c1df41ac9c")
+    # swift 6 is not available in nixpkgs
+    (lib.cmakeBool "DESKTOP_APP_DISABLE_SWIFT6" true)
   ];
 
   installPhase = lib.optionalString stdenv.hostPlatform.isDarwin ''
diff --git a/pkgs/by-name/_6/_64gram/package.nix b/pkgs/by-name/_6/_64gram/package.nix
index 61861c856227..18968647d9e8 100644
--- a/pkgs/by-name/_6/_64gram/package.nix
+++ b/pkgs/by-name/_6/_64gram/package.nix
@@ -10,13 +10,13 @@ telegram-desktop.override {
   inherit withWebkit;
   unwrapped = telegram-desktop.unwrapped.overrideAttrs (old: rec {
     pname = "64gram-unwrapped";
-    version = "1.1.94";
+    version = "1.1.99";
 
     src = fetchFromGitHub {
       owner = "TDesktop-x64";
       repo = "tdesktop";
       tag = "v${version}";
-      hash = "sha256-pMcG0B3YxrvvaLsC2yWJsm9wHpv5+xLtp+wQhRtJ38Q=";
+      hash = "sha256-p1mdNoTjftbAeoWJ+AKVPFr87BoxOLIT5fDzWY3VXMQ=";
       fetchSubmodules = true;
     };