diff --git a/lib/bundler/bundler.gemspec b/lib/bundler/bundler.gemspec
index 88411f295d..16ca4a022c 100644
--- a/lib/bundler/bundler.gemspec
+++ b/lib/bundler/bundler.gemspec
@@ -29,10 +29,10 @@ Gem::Specification.new do |s|
     "source_code_uri" => "https://github.com/rubygems/rubygems/tree/master/bundler",
   }
 
-  s.required_ruby_version     = ">= 3.1.0"
+  s.required_ruby_version     = ">= 3.2.0"
 
   # It should match the RubyGems version shipped with `required_ruby_version` above
-  s.required_rubygems_version = ">= 3.3.3"
+  s.required_rubygems_version = ">= 3.4.1"
 
   s.files = Dir.glob("lib/bundler{.rb,/**/*}", File::FNM_DOTMATCH).reject {|f| File.directory?(f) }
 
diff --git a/lib/bundler/cli/gem.rb b/lib/bundler/cli/gem.rb
index 22bcf0e47a..9e61af9f42 100644
--- a/lib/bundler/cli/gem.rb
+++ b/lib/bundler/cli/gem.rb
@@ -446,7 +446,7 @@ module Bundler
     end
 
     def required_ruby_version
-      "3.1.0"
+      "3.2.0"
     end
 
     def rubocop_version
@@ -456,12 +456,5 @@ module Bundler
     def standard_version
       "1.3"
     end
-
-    def validate_rust_builder_rubygems_version
-      if Gem::Version.new(rust_builder_required_rubygems_version) > Gem.rubygems_version
-        Bundler.ui.error "Your RubyGems version (#{Gem.rubygems_version}) is too old to build Rust extension. Please update your RubyGems using `gem update --system` or any other way and try again."
-        exit 1
-      end
-    end
   end
 end
diff --git a/lib/bundler/rubygems_ext.rb b/lib/bundler/rubygems_ext.rb
index 1f3fb0fdde..5789973b6b 100644
--- a/lib/bundler/rubygems_ext.rb
+++ b/lib/bundler/rubygems_ext.rb
@@ -13,15 +13,6 @@ require "rubygems" unless defined?(Gem)
 # `Gem::Source` from the redefined `Gem::Specification#source`.
 require "rubygems/source"
 
-# Cherry-pick fixes to `Gem.ruby_version` to be useful for modern Bundler
-# versions and ignore patchlevels
-# (https://github.com/rubygems/rubygems/pull/5472,
-# https://github.com/rubygems/rubygems/pull/5486). May be removed once RubyGems
-# 3.3.12 support is dropped.
-unless Gem.ruby_version.to_s == RUBY_VERSION || RUBY_PATCHLEVEL == -1
-  Gem.instance_variable_set(:@ruby_version, Gem::Version.new(RUBY_VERSION))
-end
-
 module Gem
   # Can be removed once RubyGems 3.5.11 support is dropped
   unless Gem.respond_to?(:freebsd_platform?)
@@ -92,21 +83,10 @@ module Gem
           # version
           (
             (@os != "linux" && (@version.nil? || other.version.nil?)) ||
-            (@os == "linux" && (normalized_linux_version_ext == other.normalized_linux_version_ext || ["musl#{@version}", "musleabi#{@version}", "musleabihf#{@version}"].include?(other.version))) ||
+            (@os == "linux" && (normalized_linux_version == other.normalized_linux_version || ["musl#{@version}", "musleabi#{@version}", "musleabihf#{@version}"].include?(other.version))) ||
             @version == other.version
           )
       end
-
-      # This is a copy of RubyGems 3.3.23 or higher `normalized_linux_method`.
-      # Once only 3.3.23 is supported, we can use the method in RubyGems.
-      def normalized_linux_version_ext
-        return nil unless @version
-
-        without_gnu_nor_abi_modifiers = @version.sub(/\Agnu/, "").sub(/eabi(hf)?\Z/, "")
-        return nil if without_gnu_nor_abi_modifiers.empty?
-
-        without_gnu_nor_abi_modifiers
-      end
     end
   end
 
@@ -144,9 +124,6 @@ module Gem
   # Can be removed once RubyGems 3.5.14 support is dropped
   VALIDATES_FOR_RESOLUTION = Specification.new.respond_to?(:validate_for_resolution).freeze
 
-  # Can be removed once RubyGems 3.3.15 support is dropped
-  FLATTENS_REQUIRED_PATHS = Specification.new.respond_to?(:flatten_require_paths).freeze
-
   class Specification
     # Can be removed once RubyGems 3.5.15 support is dropped
     correct_array_attributes = @@default_value.select {|_k,v| v.is_a?(Array) }.keys
@@ -272,27 +249,6 @@ module Gem
       end
     end
 
-    unless FLATTENS_REQUIRED_PATHS
-      def flatten_require_paths
-        return unless raw_require_paths.first.is_a?(Array)
-
-        warn "#{name} #{version} includes a gemspec with `require_paths` set to an array of arrays. Newer versions of this gem might've already fixed this"
-        raw_require_paths.flatten!
-      end
-
-      class << self
-        module RequirePathFlattener
-          def from_yaml(input)
-            spec = super(input)
-            spec.flatten_require_paths
-            spec
-          end
-        end
-
-        prepend RequirePathFlattener
-      end
-    end
-
     private
 
     def dependencies_to_gemfile(dependencies, group = nil)
@@ -471,15 +427,4 @@ module Gem
 
     Package::TarReader::Entry.prepend(FixFullNameEncoding)
   end
-
-  require "rubygems/uri"
-
-  # Can be removed once RubyGems 3.3.15 support is dropped
-  unless Gem::Uri.respond_to?(:redact)
-    class Uri
-      def self.redact(uri)
-        new(uri).redacted
-      end
-    end
-  end
 end
diff --git a/spec/bundler/bundler/specifications/foo.gemspec b/spec/bundler/bundler/specifications/foo.gemspec
index 81b77d0c86..19b7724e81 100644
--- a/spec/bundler/bundler/specifications/foo.gemspec
+++ b/spec/bundler/bundler/specifications/foo.gemspec
@@ -8,6 +8,6 @@ Gem::Specification.new do |s|
   s.version = "1.0.0"
   s.loaded_from = __FILE__
   s.extensions = "ext/foo"
-  s.required_ruby_version = ">= 3.1.0"
+  s.required_ruby_version = ">= 3.2.0"
 end
 # rubocop:enable Style/FrozenStringLiteralComment
diff --git a/spec/bundler/support/rubygems_ext.rb b/spec/bundler/support/rubygems_ext.rb
index 46261493db..fa85280408 100644
--- a/spec/bundler/support/rubygems_ext.rb
+++ b/spec/bundler/support/rubygems_ext.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-abort "RubyGems only supports Ruby 3.1 or higher" if RUBY_VERSION < "3.1.0"
+abort "RubyGems only supports Ruby 3.2 or higher" if RUBY_VERSION < "3.2.0"
 
 require_relative "path"