diff --git a/pkgs/applications/networking/instant-messengers/telegram/tdesktop/default.nix b/pkgs/applications/networking/instant-messengers/telegram/tdesktop/default.nix
index 39d664805fa..dab23e1cb4a 100644
--- a/pkgs/applications/networking/instant-messengers/telegram/tdesktop/default.nix
+++ b/pkgs/applications/networking/instant-messengers/telegram/tdesktop/default.nix
@@ -14,5 +14,7 @@ in {
   stable = mkTelegram stableVersion;
   preview = mkTelegram (stableVersion // {
     stable = false;
+    version = "1.3.11";
+    sha256Hash = "057b7ccba7k2slzbp9xzcs3fni40x7gz3wy13xfgxywr12f04h1r";
   });
 }