diff --git a/pkgs/by-name/un/unciv/package.nix b/pkgs/by-name/un/unciv/package.nix
index 0e2f80f09d96..69d1bb8ec7df 100644
--- a/pkgs/by-name/un/unciv/package.nix
+++ b/pkgs/by-name/un/unciv/package.nix
@@ -27,11 +27,11 @@ let
 in
 stdenv.mkDerivation rec {
   pname = "unciv";
-  version = "4.10.19";
+  version = "4.10.21";
 
   src = fetchurl {
     url = "https://github.com/yairm210/Unciv/releases/download/${version}/Unciv.jar";
-    hash = "sha256-f9fg2Clz9CjoC8xzCguJ2A3Aczom+KjEyIlMJC2oS/o=";
+    hash = "sha256-JnuJbmKGqtEdFiMnA5RvCfdox2WTABwxNI3Zdk6wNU8=";
   };
 
   dontUnpack = true;