diff --git a/pkgs/by-name/sn/snes9x/package.nix b/pkgs/by-name/sn/snes9x/package.nix
index c5945095beb4..84951e4e3ac3 100644
--- a/pkgs/by-name/sn/snes9x/package.nix
+++ b/pkgs/by-name/sn/snes9x/package.nix
@@ -90,6 +90,11 @@ stdenv.mkDerivation (finalAttrs: {
     ];
 
   postPatch = lib.optionalString withGtk ''
+    # Please remove after snes9x > 1.63.  Fixed by upstream:
+    # https://github.com/snes9xgit/snes9x/commit/a4b4b98fffbde417ad550480021db89f18f11a5d.patch
+    substituteInPlace external/SPIRV-Cross/CMakeLists.txt \
+      --replace-fail 'cmake_minimum_required(VERSION 3.0)' 'cmake_minimum_required(VERSION 3.5)'
+
     substituteInPlace external/glad/src/egl.c \
       --replace-fail libEGL.so.1 "${lib.getLib libGLX}/lib/libEGL.so.1"
     substituteInPlace external/glad/src/glx.c \