diff --git a/Formula/mergepbx.rb b/Formula/mergepbx.rb
index 2032e896eccce..598d9af146b38 100644
--- a/Formula/mergepbx.rb
+++ b/Formula/mergepbx.rb
@@ -17,6 +17,10 @@ class Mergepbx < Formula
     sha256 cellar: :any_skip_relocation, all:           "8ecddaec0eaeb4d63ccc9935e66c8f0b5bf7a5a07fbb313909270e47088bf590"
   end
 
+  # Requires Python2.
+  # https://github.com/Homebrew/homebrew-core/issues/93940
+  deprecate! date: "2022-03-09", because: :unsupported
+
   resource "dummy_base" do
     url "https://raw.githubusercontent.com/simonwagner/mergepbx/a9bd9d8f4a732eff989ea03fbc0d78f6f6fb594f/test/fixtures/merge/dummy/dummy1/project.pbxproj.base"
     sha256 "d2cf3fdec1b37489e9bc219c82a7ee945c3dfc4672c8b4e89bc08ae0087d6477"