diff --git a/pkgs/games/unciv/default.nix b/pkgs/games/unciv/default.nix
index af3740ae926..0f04ebfe4da 100644
--- a/pkgs/games/unciv/default.nix
+++ b/pkgs/games/unciv/default.nix
@@ -25,11 +25,11 @@ let
 in
 stdenv.mkDerivation rec {
   pname = "unciv";
-  version = "3.12.12";
+  version = "3.12.13-patch1";
 
   src = fetchurl {
     url = "https://github.com/yairm210/Unciv/releases/download/${version}/Unciv.jar";
-    sha256 = "sha256-C5Mhn4v0dCAVGuYxi/3YMQKGUBkdBBXYGfsM1heJkQg=";
+    sha256 = "sha256-OwS1rn5mfU6cA6pvpp7Q407Kw2wBGvpqWmqlajgHtCI=";
   };
 
   dontUnpack = true;