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 3726855f1578..c9cbd659aafc 100644
--- a/pkgs/applications/networking/instant-messengers/telegram/telegram-desktop/unwrapped.nix
+++ b/pkgs/applications/networking/instant-messengers/telegram/telegram-desktop/unwrapped.nix
@@ -42,14 +42,14 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "telegram-desktop-unwrapped";
-  version = "6.3.1";
+  version = "6.3.4";
 
   src = fetchFromGitHub {
     owner = "telegramdesktop";
     repo = "tdesktop";
     rev = "v${finalAttrs.version}";
     fetchSubmodules = true;
-    hash = "sha256-kIiOHXFOjHCE3GaizNvpu8rUCuJKBN5Oi7p0NvHYy04=";
+    hash = "sha256-0d5PFo0tv8yayHqsd44gvodgbyRb1b5IPXtJahkWjHU=";
   };
 
   nativeBuildInputs = [
diff --git a/pkgs/by-name/_6/_64gram/package.nix b/pkgs/by-name/_6/_64gram/package.nix
index bedfb4245a9a..b96402195205 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 = "1.1.84";
+    version = "1.1.88";
 
     src = fetchFromGitHub {
       owner = "TDesktop-x64";
       repo = "tdesktop";
       tag = "v${version}";
-      hash = "sha256-CtDCrgKZpaTdR+Eh9H1uq7EmO0SFIgHKlW/zeeWBaCM=";
+      hash = "sha256-zC51hlfi4EwqaDBTQev7KAYvQmUMJl1RBWh5/By2GUU=";
       fetchSubmodules = true;
     };