diff --git a/pkgs/by-name/up/upgrade-assistant/package.nix b/pkgs/by-name/up/upgrade-assistant/package.nix
new file mode 100644
index 000000000000..4550a3f7b71e
--- /dev/null
+++ b/pkgs/by-name/up/upgrade-assistant/package.nix
@@ -0,0 +1,16 @@
+{ lib, buildDotnetGlobalTool }:
+buildDotnetGlobalTool {
+  pname = "upgrade-assistant";
+  version = "0.5.820";
+
+  nugetHash = "sha256-GB+q5aZRkBTeXUbIPjkPsll6pSI/H6Iyh5mY53uT284=";
+
+  meta = {
+    homepage = "https://github.com/dotnet/upgrade-assistant";
+    description = "Tool to assist developers in upgrading .NET Framework applications to .NET 6 and beyond";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ khaneliman ];
+    mainProgram = "ugprade-assistant";
+    platforms = lib.platforms.all;
+  };
+}