diff --git a/pkgs/development/compilers/mono/5.14.nix b/pkgs/development/compilers/mono/5.14.nix
new file mode 100644
index 000000000000..dcf587a5fa41
--- /dev/null
+++ b/pkgs/development/compilers/mono/5.14.nix
@@ -0,0 +1,8 @@
+{ callPackage, Foundation, libobjc }:
+
+callPackage ./generic-cmake.nix (rec {
+  inherit Foundation libobjc;
+  version = "5.14.0.177";
+  sha256 = "164l30fkvfgs1rh663h7dnm1yp7425bi9x2lh2y6zml8h4pgmxfl";
+  enableParallelBuilding = false;
+})
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 3cb04f97305c..945b78fe33a2 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -7024,6 +7024,11 @@ with pkgs;
     inherit (darwin.apple_sdk.frameworks) Foundation;
   };
 
+  mono514 = callPackage ../development/compilers/mono/5.14.nix {
+    inherit (darwin) libobjc;
+    inherit (darwin.apple_sdk.frameworks) Foundation;
+  };
+
   monoDLLFixer = callPackage ../build-support/mono-dll-fixer { };
 
   mosml = callPackage ../development/compilers/mosml { };