diff --git a/Library/Homebrew/Gemfile.lock b/Library/Homebrew/Gemfile.lock
index bee174215e..f9ee864282 100644
--- a/Library/Homebrew/Gemfile.lock
+++ b/Library/Homebrew/Gemfile.lock
@@ -265,4 +265,4 @@ RUBY VERSION
    ruby 2.6.8p205
 
 BUNDLED WITH
-   2.3.24
+   2.3.26
diff --git a/Library/Homebrew/rubyext/rubygems/defaults/operating_system.rb b/Library/Homebrew/rubyext/rubygems/defaults/operating_system.rb
deleted file mode 100644
index be492566df..0000000000
--- a/Library/Homebrew/rubyext/rubygems/defaults/operating_system.rb
+++ /dev/null
@@ -1,32 +0,0 @@
-# typed: false
-# frozen_string_literal: true
-
-# Fixes universal-ruby getting confused whether to install arm64 or x86_64 macOS versions.
-# This can be removed when integrated into Bundler: https://github.com/rubygems/rubygems/pull/5978
-module Gem
-  # @private
-  class Specification
-    if /^universal\.(?<arch>.*?)-/ =~ (CROSS_COMPILING || RUBY_PLATFORM)
-      local_platform = Platform.local
-      if local_platform.cpu == "universal"
-        ORIGINAL_LOCAL_PLATFORM = local_platform.to_s.freeze
-
-        local_platform.cpu = if arch == "arm64e" # arm64e is only permitted for Apple system binaries
-          "arm64"
-        else
-          arch
-        end
-
-        def extensions_dir
-          Gem.default_ext_dir_for(base_dir) ||
-            File.join(base_dir, "extensions", ORIGINAL_LOCAL_PLATFORM,
-                      Gem.extension_api_version)
-        end
-      end
-    end
-  end
-end
-
-# This doesn't currently exist in system Ruby but it's safer to check.
-orig_file = File.join(RbConfig::CONFIG["rubylibdir"], "rubygems", "defaults", "operating_system")
-require orig_file if File.exist?(orig_file)
diff --git a/Library/Homebrew/shims/ruby/bundle b/Library/Homebrew/shims/ruby/bundle
deleted file mode 100755
index cc6eea1f26..0000000000
--- a/Library/Homebrew/shims/ruby/bundle
+++ /dev/null
@@ -1,15 +0,0 @@
-#!/usr/bin/env ruby
-# frozen_string_literal: true
-
-# Insert our system Ruby patch script, if neeeded.
-# Fixes universal-ruby getting confused whether to install arm64 or x86_64 macOS versions.
-# https://github.com/rubygems/rubygems/issues/4234
-if RUBY_PLATFORM.match?(/universal\..*-darwin/)
-  rubylib = File.expand_path("../../rubyext", File.dirname(__FILE__))
-  ENV["RUBYLIB"] = rubylib
-  $LOAD_PATH.unshift(rubylib) unless $LOAD_PATH.include?(rubylib)
-  require "rubygems/defaults/operating_system" if defined?(Gem) # Reload if already loaded.
-end
-
-require "rubygems"
-load Gem.activate_bin_path("bundler", "bundle", ">= 0.a")
diff --git a/Library/Homebrew/utils/gems.rb b/Library/Homebrew/utils/gems.rb
index 2b5c7e5a2d..320a8ba4a5 100644
--- a/Library/Homebrew/utils/gems.rb
+++ b/Library/Homebrew/utils/gems.rb
@@ -10,7 +10,7 @@ require "English"
 module Homebrew
   # Keep in sync with the `Gemfile.lock`'s BUNDLED WITH.
   # After updating this, run `brew vendor-gems --update=--bundler`.
-  HOMEBREW_BUNDLER_VERSION = "2.3.24"
+  HOMEBREW_BUNDLER_VERSION = "2.3.26"
 
   module_function
 
@@ -64,7 +64,6 @@ module Homebrew
     paths = ENV.fetch("PATH").split(":")
     paths.unshift(ruby_bindir) unless paths.include?(ruby_bindir)
     paths.unshift(Gem.bindir) unless paths.include?(Gem.bindir)
-    paths.unshift(HOMEBREW_LIBRARY_PATH/"shims/ruby") unless paths.include?(HOMEBREW_LIBRARY_PATH/"shims/ruby")
     ENV["PATH"] = paths.compact.join(":")
 
     # Set envs so the above binaries can be invoked.