diff --git a/pkgs/development/tools/knightos/mkrom/default.nix b/pkgs/development/tools/knightos/mkrom/default.nix
index eec63f75e71c..258f238fd6d9 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 = "unstable-2020-06-11";
+  version = "1.0.2";
 
   src = fetchFromGitHub {
     owner = "KnightOS";
     repo = "mkrom";
-    rev = "7a735ecbe09409e74680a9dc1c50dd4db99a409f";
-    sha256 = "18h7a0fb5zb991iy9ljpknmk9qvl9nz3yh1zh5bm399rpxn4nzx3";
+    rev = "${version}";
+    sha256 = "1nx3787gvs04xdvvamzkjkn9nmy2w70ja8dnh4szk420mvpc85na";
   };
 
   nativeBuildInputs = [