diff --git a/pkgs/development/tools/knightos/mkrom/default.nix b/pkgs/development/tools/knightos/mkrom/default.nix
index 380bdc58d49b46..46482a8491343f 100644
--- a/pkgs/development/tools/knightos/mkrom/default.nix
+++ b/pkgs/development/tools/knightos/mkrom/default.nix
@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   pname = "mkrom";
-  version = "1.0.2";
+  version = "1.0.3";
 
   src = fetchFromGitHub {
     owner = "KnightOS";
     repo = "mkrom";
     rev = version;
-    sha256 = "1nx3787gvs04xdvvamzkjkn9nmy2w70ja8dnh4szk420mvpc85na";
+    sha256 = "0xgvanya40mdwy35j94j61hsp80dm5b440iphmr5ng3kjgchvpx2";
   };
 
   nativeBuildInputs = [