diff --git a/lib/bundler/vendor/securerandom/lib/random/formatter.rb b/lib/bundler/vendor/securerandom/lib/random/formatter.rb
deleted file mode 100644
index 531e7219c860b7..00000000000000
--- a/lib/bundler/vendor/securerandom/lib/random/formatter.rb
+++ /dev/null
@@ -1,372 +0,0 @@
-# -*- coding: us-ascii -*-
-# frozen_string_literal: true
-
-# == \Random number formatter.
-#
-# Formats generated random numbers in many manners. When <tt>'random/formatter'</tt>
-# is required, several methods are added to empty core module <tt>Bundler::Random::Formatter</tt>,
-# making them available as Random's instance and module methods.
-#
-# Standard library Bundler::SecureRandom is also extended with the module, and the methods
-# described below are available as a module methods in it.
-#
-# === Examples
-#
-# Generate random hexadecimal strings:
-#
-#   require 'bundler/vendor/securerandom/lib/random/formatter'
-#
-#   prng = Random.new
-#   prng.hex(10) #=> "52750b30ffbc7de3b362"
-#   prng.hex(10) #=> "92b15d6c8dc4beb5f559"
-#   prng.hex(13) #=> "39b290146bea6ce975c37cfc23"
-#   # or just
-#   Random.hex #=> "1aed0c631e41be7f77365415541052ee"
-#
-# Generate random base64 strings:
-#
-#   prng.base64(10) #=> "EcmTPZwWRAozdA=="
-#   prng.base64(10) #=> "KO1nIU+p9DKxGg=="
-#   prng.base64(12) #=> "7kJSM/MzBJI+75j8"
-#   Random.base64(4) #=> "bsQ3fQ=="
-#
-# Generate random binary strings:
-#
-#   prng.random_bytes(10) #=> "\016\t{\370g\310pbr\301"
-#   prng.random_bytes(10) #=> "\323U\030TO\234\357\020\a\337"
-#   Random.random_bytes(6) #=> "\xA1\xE6Lr\xC43"
-#
-# Generate alphanumeric strings:
-#
-#   prng.alphanumeric(10) #=> "S8baxMJnPl"
-#   prng.alphanumeric(10) #=> "aOxAg8BAJe"
-#   Random.alphanumeric #=> "TmP9OsJHJLtaZYhP"
-#
-# Generate UUIDs:
-#
-#   prng.uuid #=> "2d931510-d99f-494a-8c67-87feb05e1594"
-#   prng.uuid #=> "bad85eb9-0713-4da7-8d36-07a8e4b00eab"
-#   Random.uuid #=> "f14e0271-de96-45cc-8911-8910292a42cd"
-#
-# All methods are available in the standard library Bundler::SecureRandom, too:
-#
-#   Bundler::SecureRandom.hex #=> "05b45376a30c67238eb93b16499e50cf"
-
-module Bundler::Random::Formatter
-
-  # Generate a random binary string.
-  #
-  # The argument _n_ specifies the length of the result string.
-  #
-  # If _n_ is not specified or is nil, 16 is assumed.
-  # It may be larger in future.
-  #
-  # The result may contain any byte: "\x00" - "\xff".
-  #
-  #   require 'bundler/vendor/securerandom/lib/random/formatter'
-  #
-  #   Random.random_bytes #=> "\xD8\\\xE0\xF4\r\xB2\xFC*WM\xFF\x83\x18\xF45\xB6"
-  #   # or
-  #   prng = Random.new
-  #   prng.random_bytes #=> "m\xDC\xFC/\a\x00Uf\xB2\xB2P\xBD\xFF6S\x97"
-  def random_bytes(n=nil)
-    n = n ? n.to_int : 16
-    gen_random(n)
-  end
-
-  # Generate a random hexadecimal string.
-  #
-  # The argument _n_ specifies the length, in bytes, of the random number to be generated.
-  # The length of the resulting hexadecimal string is twice of _n_.
-  #
-  # If _n_ is not specified or is nil, 16 is assumed.
-  # It may be larger in the future.
-  #
-  # The result may contain 0-9 and a-f.
-  #
-  #   require 'bundler/vendor/securerandom/lib/random/formatter'
-  #
-  #   Random.hex #=> "eb693ec8252cd630102fd0d0fb7c3485"
-  #   # or
-  #   prng = Random.new
-  #   prng.hex #=> "91dc3bfb4de5b11d029d376634589b61"
-  def hex(n=nil)
-    random_bytes(n).unpack1("H*")
-  end
-
-  # Generate a random base64 string.
-  #
-  # The argument _n_ specifies the length, in bytes, of the random number
-  # to be generated. The length of the result string is about 4/3 of _n_.
-  #
-  # If _n_ is not specified or is nil, 16 is assumed.
-  # It may be larger in the future.
-  #
-  # The result may contain A-Z, a-z, 0-9, "+", "/" and "=".
-  #
-  #   require 'bundler/vendor/securerandom/lib/random/formatter'
-  #
-  #   Random.base64 #=> "/2BuBuLf3+WfSKyQbRcc/A=="
-  #   # or
-  #   prng = Random.new
-  #   prng.base64 #=> "6BbW0pxO0YENxn38HMUbcQ=="
-  #
-  # See RFC 3548 for the definition of base64.
-  def base64(n=nil)
-    [random_bytes(n)].pack("m0")
-  end
-
-  # Generate a random URL-safe base64 string.
-  #
-  # The argument _n_ specifies the length, in bytes, of the random number
-  # to be generated. The length of the result string is about 4/3 of _n_.
-  #
-  # If _n_ is not specified or is nil, 16 is assumed.
-  # It may be larger in the future.
-  #
-  # The boolean argument _padding_ specifies the padding.
-  # If it is false or nil, padding is not generated.
-  # Otherwise padding is generated.
-  # By default, padding is not generated because "=" may be used as a URL delimiter.
-  #
-  # The result may contain A-Z, a-z, 0-9, "-" and "_".
-  # "=" is also used if _padding_ is true.
-  #
-  #   require 'bundler/vendor/securerandom/lib/random/formatter'
-  #
-  #   Random.urlsafe_base64 #=> "b4GOKm4pOYU_-BOXcrUGDg"
-  #   # or
-  #   prng = Random.new
-  #   prng.urlsafe_base64 #=> "UZLdOkzop70Ddx-IJR0ABg"
-  #
-  #   prng.urlsafe_base64(nil, true) #=> "i0XQ-7gglIsHGV2_BNPrdQ=="
-  #   prng.urlsafe_base64(nil, true) #=> "-M8rLhr7JEpJlqFGUMmOxg=="
-  #
-  # See RFC 3548 for the definition of URL-safe base64.
-  def urlsafe_base64(n=nil, padding=false)
-    s = [random_bytes(n)].pack("m0")
-    s.tr!("+/", "-_")
-    s.delete!("=") unless padding
-    s
-  end
-
-  # Generate a random v4 UUID (Universally Unique IDentifier).
-  #
-  #   require 'bundler/vendor/securerandom/lib/random/formatter'
-  #
-  #   Random.uuid #=> "2d931510-d99f-494a-8c67-87feb05e1594"
-  #   Random.uuid #=> "bad85eb9-0713-4da7-8d36-07a8e4b00eab"
-  #   # or
-  #   prng = Random.new
-  #   prng.uuid #=> "62936e70-1815-439b-bf89-8492855a7e6b"
-  #
-  # The version 4 UUID is purely random (except the version).
-  # It doesn't contain meaningful information such as MAC addresses, timestamps, etc.
-  #
-  # The result contains 122 random bits (15.25 random bytes).
-  #
-  # See RFC9562[https://www.rfc-editor.org/rfc/rfc9562] for details of UUIDv4.
-  #
-  def uuid
-    ary = random_bytes(16)
-    ary.setbyte(6, (ary.getbyte(6) & 0x0f) | 0x40)
-    ary.setbyte(8, (ary.getbyte(8) & 0x3f) | 0x80)
-    ary.unpack("H8H4H4H4H12").join(?-)
-  end
-
-  alias uuid_v4 uuid
-
-  # Generate a random v7 UUID (Universally Unique IDentifier).
-  #
-  #   require 'bundler/vendor/securerandom/lib/random/formatter'
-  #
-  #   Random.uuid_v7 # => "0188d4c3-1311-7f96-85c7-242a7aa58f1e"
-  #   Random.uuid_v7 # => "0188d4c3-16fe-744f-86af-38fa04c62bb5"
-  #   Random.uuid_v7 # => "0188d4c3-1af8-764f-b049-c204ce0afa23"
-  #   Random.uuid_v7 # => "0188d4c3-1e74-7085-b14f-ef6415dc6f31"
-  #   #                    |<--sorted-->| |<----- random ---->|
-  #
-  #   # or
-  #   prng = Random.new
-  #   prng.uuid_v7 # => "0188ca51-5e72-7950-a11d-def7ff977c98"
-  #
-  # The version 7 UUID starts with the least significant 48 bits of a 64 bit
-  # Unix timestamp (milliseconds since the epoch) and fills the remaining bits
-  # with random data, excluding the version and variant bits.
-  #
-  # This allows version 7 UUIDs to be sorted by creation time.  Time ordered
-  # UUIDs can be used for better database index locality of newly inserted
-  # records, which may have a significant performance benefit compared to random
-  # data inserts.
-  #
-  # The result contains 74 random bits (9.25 random bytes).
-  #
-  # Note that this method cannot be made reproducible because its output
-  # includes not only random bits but also timestamp.
-  #
-  # See RFC9562[https://www.rfc-editor.org/rfc/rfc9562] for details of UUIDv7.
-  #
-  # ==== Monotonicity
-  #
-  # UUIDv7 has millisecond precision by default, so multiple UUIDs created
-  # within the same millisecond are not issued in monotonically increasing
-  # order.  To create UUIDs that are time-ordered with sub-millisecond
-  # precision, up to 12 bits of additional timestamp may added with
-  # +extra_timestamp_bits+.  The extra timestamp precision comes at the expense
-  # of random bits.  Setting <tt>extra_timestamp_bits: 12</tt> provides ~244ns
-  # of precision, but only 62 random bits (7.75 random bytes).
-  #
-  #   prng = Random.new
-  #   Array.new(4) { prng.uuid_v7(extra_timestamp_bits: 12) }
-  #   # =>
-  #   ["0188d4c7-13da-74f9-8b53-22a786ffdd5a",
-  #    "0188d4c7-13da-753b-83a5-7fb9b2afaeea",
-  #    "0188d4c7-13da-754a-88ea-ac0baeedd8db",
-  #    "0188d4c7-13da-7557-83e1-7cad9cda0d8d"]
-  #   # |<--- sorted --->| |<-- random --->|
-  #
-  #   Array.new(4) { prng.uuid_v7(extra_timestamp_bits: 8) }
-  #   # =>
-  #   ["0188d4c7-3333-7a95-850a-de6edb858f7e",
-  #    "0188d4c7-3333-7ae8-842e-bc3a8b7d0cf9",  # <- out of order
-  #    "0188d4c7-3333-7ae2-995a-9f135dc44ead",  # <- out of order
-  #    "0188d4c7-3333-7af9-87c3-8f612edac82e"]
-  #   # |<--- sorted -->||<---- random --->|
-  #
-  # Any rollbacks of the system clock will break monotonicity.  UUIDv7 is based
-  # on UTC, which excludes leap seconds and can rollback the clock.  To avoid
-  # this, the system clock can synchronize with an NTP server configured to use
-  # a "leap smear" approach.  NTP or PTP will also be needed to synchronize
-  # across distributed nodes.
-  #
-  # Counters and other mechanisms for stronger guarantees of monotonicity are
-  # not implemented.  Applications with stricter requirements should follow
-  # {Section 6.2}[https://www.rfc-editor.org/rfc/rfc9562.html#name-monotonicity-and-counters]
-  # of the specification.
-  #
-  def uuid_v7(extra_timestamp_bits: 0)
-    case (extra_timestamp_bits = Integer(extra_timestamp_bits))
-    when 0 # min timestamp precision
-      ms = Process.clock_gettime(Process::CLOCK_REALTIME, :millisecond)
-      rand = random_bytes(10)
-      rand.setbyte(0, rand.getbyte(0) & 0x0f | 0x70) # version
-      rand.setbyte(2, rand.getbyte(2) & 0x3f | 0x80) # variant
-      "%08x-%04x-%s" % [
-        (ms & 0x0000_ffff_ffff_0000) >> 16,
-        (ms & 0x0000_0000_0000_ffff),
-        rand.unpack("H4H4H12").join("-")
-      ]
-
-    when 12 # max timestamp precision
-      ms, ns = Process.clock_gettime(Process::CLOCK_REALTIME, :nanosecond)
-        .divmod(1_000_000)
-      extra_bits = ns * 4096 / 1_000_000
-      rand = random_bytes(8)
-      rand.setbyte(0, rand.getbyte(0) & 0x3f | 0x80) # variant
-      "%08x-%04x-7%03x-%s" % [
-        (ms & 0x0000_ffff_ffff_0000) >> 16,
-        (ms & 0x0000_0000_0000_ffff),
-        extra_bits,
-        rand.unpack("H4H12").join("-")
-      ]
-
-    when (0..12) # the generic version is slower than the special cases above
-      rand_a, rand_b1, rand_b2, rand_b3 = random_bytes(10).unpack("nnnN")
-      rand_mask_bits = 12 - extra_timestamp_bits
-      ms, ns = Process.clock_gettime(Process::CLOCK_REALTIME, :nanosecond)
-        .divmod(1_000_000)
-      "%08x-%04x-%04x-%04x-%04x%08x" % [
-        (ms & 0x0000_ffff_ffff_0000) >> 16,
-        (ms & 0x0000_0000_0000_ffff),
-        0x7000 |
-          ((ns * (1 << extra_timestamp_bits) / 1_000_000) << rand_mask_bits) |
-          rand_a & ((1 << rand_mask_bits) - 1),
-        0x8000 | (rand_b1 & 0x3fff),
-        rand_b2,
-        rand_b3
-      ]
-
-    else
-      raise ArgumentError, "extra_timestamp_bits must be in 0..12"
-    end
-  end
-
-  # Internal interface to Random; Generate random data _n_ bytes.
-  private def gen_random(n)
-    self.bytes(n)
-  end
-
-  # Generate a string that randomly draws from a
-  # source array of characters.
-  #
-  # The argument _source_ specifies the array of characters from which
-  # to generate the string.
-  # The argument _n_ specifies the length, in characters, of the string to be
-  # generated.
-  #
-  # The result may contain whatever characters are in the source array.
-  #
-  #   require 'bundler/vendor/securerandom/lib/random/formatter'
-  #
-  #   prng.choose([*'l'..'r'], 16) #=> "lmrqpoonmmlqlron"
-  #   prng.choose([*'0'..'9'], 5)  #=> "27309"
-  private def choose(source, n)
-    size = source.size
-    m = 1
-    limit = size
-    while limit * size <= 0x100000000
-      limit *= size
-      m += 1
-    end
-    result = ''.dup
-    while m <= n
-      rs = random_number(limit)
-      is = rs.digits(size)
-      (m-is.length).times { is << 0 }
-      result << source.values_at(*is).join('')
-      n -= m
-    end
-    if 0 < n
-      rs = random_number(limit)
-      is = rs.digits(size)
-      if is.length < n
-        (n-is.length).times { is << 0 }
-      else
-        is.pop while n < is.length
-      end
-      result.concat source.values_at(*is).join('')
-    end
-    result
-  end
-
-  # The default character list for #alphanumeric.
-  ALPHANUMERIC = [*'A'..'Z', *'a'..'z', *'0'..'9']
-
-  # Generate a random alphanumeric string.
-  #
-  # The argument _n_ specifies the length, in characters, of the alphanumeric
-  # string to be generated.
-  # The argument _chars_ specifies the character list which the result is
-  # consist of.
-  #
-  # If _n_ is not specified or is nil, 16 is assumed.
-  # It may be larger in the future.
-  #
-  # The result may contain A-Z, a-z and 0-9, unless _chars_ is specified.
-  #
-  #   require 'bundler/vendor/securerandom/lib/random/formatter'
-  #
-  #   Random.alphanumeric     #=> "2BuBuLf3WfSKyQbR"
-  #   # or
-  #   prng = Random.new
-  #   prng.alphanumeric(10) #=> "i6K93NdqiH"
-  #
-  #   Random.alphanumeric(4, chars: [*"0".."9"]) #=> "2952"
-  #   # or
-  #   prng = Random.new
-  #   prng.alphanumeric(10, chars: [*"!".."/"]) #=> ",.,++%/''."
-  def alphanumeric(n = nil, chars: ALPHANUMERIC)
-    n = 16 if n.nil?
-    choose(chars, n)
-  end
-end
diff --git a/lib/bundler/vendor/securerandom/lib/securerandom.rb b/lib/bundler/vendor/securerandom/lib/securerandom.rb
index 001c6af07c5462..6461203c8e97e3 100644
--- a/lib/bundler/vendor/securerandom/lib/securerandom.rb
+++ b/lib/bundler/vendor/securerandom/lib/securerandom.rb
@@ -1,7 +1,7 @@
 # -*- coding: us-ascii -*-
 # frozen_string_literal: true
 
-require_relative 'random/formatter'
+require 'random/formatter'
 
 # == Secure random number generator interface.
 #
@@ -18,7 +18,7 @@
 # * /dev/urandom
 # * Win32
 #
-# Bundler::SecureRandom is extended by the Bundler::Random::Formatter module which
+# Bundler::SecureRandom is extended by the Random::Formatter module which
 # defines the following methods:
 #
 # * alphanumeric
@@ -41,7 +41,7 @@
 module Bundler::SecureRandom
 
   # The version
-  VERSION = "0.3.2"
+  VERSION = "0.4.0"
 
   class << self
     # Returns a random binary string containing +size+ bytes.
@@ -88,9 +88,9 @@ def gen_random_urandom(n)
 
     # :startdoc:
 
-    # Generate random data bytes for Bundler::Random::Formatter
+    # Generate random data bytes for Random::Formatter
     public :gen_random
   end
 end
 
-Bundler::SecureRandom.extend(Bundler::Random::Formatter)
+Bundler::SecureRandom.extend(Random::Formatter)
diff --git a/lib/bundler/vendored_securerandom.rb b/lib/bundler/vendored_securerandom.rb
index 6c15f4a2b2aef5..6a704dbd40e487 100644
--- a/lib/bundler/vendored_securerandom.rb
+++ b/lib/bundler/vendored_securerandom.rb
@@ -7,8 +7,6 @@
 begin
   require "rubygems/vendored_securerandom"
 rescue LoadError
-  module Bundler::Random; end
   require_relative "vendor/securerandom/lib/securerandom"
   Gem::SecureRandom = Bundler::SecureRandom
-  Gem::Random = Bundler::Random
 end
diff --git a/lib/rubygems/vendor/securerandom/lib/random/formatter.rb b/lib/rubygems/vendor/securerandom/lib/random/formatter.rb
deleted file mode 100644
index 591cdcaa93144b..00000000000000
--- a/lib/rubygems/vendor/securerandom/lib/random/formatter.rb
+++ /dev/null
@@ -1,372 +0,0 @@
-# -*- coding: us-ascii -*-
-# frozen_string_literal: true
-
-# == \Random number formatter.
-#
-# Formats generated random numbers in many manners. When <tt>'random/formatter'</tt>
-# is required, several methods are added to empty core module <tt>Gem::Random::Formatter</tt>,
-# making them available as Random's instance and module methods.
-#
-# Standard library Gem::SecureRandom is also extended with the module, and the methods
-# described below are available as a module methods in it.
-#
-# === Examples
-#
-# Generate random hexadecimal strings:
-#
-#   require 'rubygems/vendor/securerandom/lib/random/formatter'
-#
-#   prng = Random.new
-#   prng.hex(10) #=> "52750b30ffbc7de3b362"
-#   prng.hex(10) #=> "92b15d6c8dc4beb5f559"
-#   prng.hex(13) #=> "39b290146bea6ce975c37cfc23"
-#   # or just
-#   Random.hex #=> "1aed0c631e41be7f77365415541052ee"
-#
-# Generate random base64 strings:
-#
-#   prng.base64(10) #=> "EcmTPZwWRAozdA=="
-#   prng.base64(10) #=> "KO1nIU+p9DKxGg=="
-#   prng.base64(12) #=> "7kJSM/MzBJI+75j8"
-#   Random.base64(4) #=> "bsQ3fQ=="
-#
-# Generate random binary strings:
-#
-#   prng.random_bytes(10) #=> "\016\t{\370g\310pbr\301"
-#   prng.random_bytes(10) #=> "\323U\030TO\234\357\020\a\337"
-#   Random.random_bytes(6) #=> "\xA1\xE6Lr\xC43"
-#
-# Generate alphanumeric strings:
-#
-#   prng.alphanumeric(10) #=> "S8baxMJnPl"
-#   prng.alphanumeric(10) #=> "aOxAg8BAJe"
-#   Random.alphanumeric #=> "TmP9OsJHJLtaZYhP"
-#
-# Generate UUIDs:
-#
-#   prng.uuid #=> "2d931510-d99f-494a-8c67-87feb05e1594"
-#   prng.uuid #=> "bad85eb9-0713-4da7-8d36-07a8e4b00eab"
-#   Random.uuid #=> "f14e0271-de96-45cc-8911-8910292a42cd"
-#
-# All methods are available in the standard library Gem::SecureRandom, too:
-#
-#   Gem::SecureRandom.hex #=> "05b45376a30c67238eb93b16499e50cf"
-
-module Gem::Random::Formatter
-
-  # Generate a random binary string.
-  #
-  # The argument _n_ specifies the length of the result string.
-  #
-  # If _n_ is not specified or is nil, 16 is assumed.
-  # It may be larger in future.
-  #
-  # The result may contain any byte: "\x00" - "\xff".
-  #
-  #   require 'rubygems/vendor/securerandom/lib/random/formatter'
-  #
-  #   Random.random_bytes #=> "\xD8\\\xE0\xF4\r\xB2\xFC*WM\xFF\x83\x18\xF45\xB6"
-  #   # or
-  #   prng = Random.new
-  #   prng.random_bytes #=> "m\xDC\xFC/\a\x00Uf\xB2\xB2P\xBD\xFF6S\x97"
-  def random_bytes(n=nil)
-    n = n ? n.to_int : 16
-    gen_random(n)
-  end
-
-  # Generate a random hexadecimal string.
-  #
-  # The argument _n_ specifies the length, in bytes, of the random number to be generated.
-  # The length of the resulting hexadecimal string is twice of _n_.
-  #
-  # If _n_ is not specified or is nil, 16 is assumed.
-  # It may be larger in the future.
-  #
-  # The result may contain 0-9 and a-f.
-  #
-  #   require 'rubygems/vendor/securerandom/lib/random/formatter'
-  #
-  #   Random.hex #=> "eb693ec8252cd630102fd0d0fb7c3485"
-  #   # or
-  #   prng = Random.new
-  #   prng.hex #=> "91dc3bfb4de5b11d029d376634589b61"
-  def hex(n=nil)
-    random_bytes(n).unpack1("H*")
-  end
-
-  # Generate a random base64 string.
-  #
-  # The argument _n_ specifies the length, in bytes, of the random number
-  # to be generated. The length of the result string is about 4/3 of _n_.
-  #
-  # If _n_ is not specified or is nil, 16 is assumed.
-  # It may be larger in the future.
-  #
-  # The result may contain A-Z, a-z, 0-9, "+", "/" and "=".
-  #
-  #   require 'rubygems/vendor/securerandom/lib/random/formatter'
-  #
-  #   Random.base64 #=> "/2BuBuLf3+WfSKyQbRcc/A=="
-  #   # or
-  #   prng = Random.new
-  #   prng.base64 #=> "6BbW0pxO0YENxn38HMUbcQ=="
-  #
-  # See RFC 3548 for the definition of base64.
-  def base64(n=nil)
-    [random_bytes(n)].pack("m0")
-  end
-
-  # Generate a random URL-safe base64 string.
-  #
-  # The argument _n_ specifies the length, in bytes, of the random number
-  # to be generated. The length of the result string is about 4/3 of _n_.
-  #
-  # If _n_ is not specified or is nil, 16 is assumed.
-  # It may be larger in the future.
-  #
-  # The boolean argument _padding_ specifies the padding.
-  # If it is false or nil, padding is not generated.
-  # Otherwise padding is generated.
-  # By default, padding is not generated because "=" may be used as a URL delimiter.
-  #
-  # The result may contain A-Z, a-z, 0-9, "-" and "_".
-  # "=" is also used if _padding_ is true.
-  #
-  #   require 'rubygems/vendor/securerandom/lib/random/formatter'
-  #
-  #   Random.urlsafe_base64 #=> "b4GOKm4pOYU_-BOXcrUGDg"
-  #   # or
-  #   prng = Random.new
-  #   prng.urlsafe_base64 #=> "UZLdOkzop70Ddx-IJR0ABg"
-  #
-  #   prng.urlsafe_base64(nil, true) #=> "i0XQ-7gglIsHGV2_BNPrdQ=="
-  #   prng.urlsafe_base64(nil, true) #=> "-M8rLhr7JEpJlqFGUMmOxg=="
-  #
-  # See RFC 3548 for the definition of URL-safe base64.
-  def urlsafe_base64(n=nil, padding=false)
-    s = [random_bytes(n)].pack("m0")
-    s.tr!("+/", "-_")
-    s.delete!("=") unless padding
-    s
-  end
-
-  # Generate a random v4 UUID (Universally Unique IDentifier).
-  #
-  #   require 'rubygems/vendor/securerandom/lib/random/formatter'
-  #
-  #   Random.uuid #=> "2d931510-d99f-494a-8c67-87feb05e1594"
-  #   Random.uuid #=> "bad85eb9-0713-4da7-8d36-07a8e4b00eab"
-  #   # or
-  #   prng = Random.new
-  #   prng.uuid #=> "62936e70-1815-439b-bf89-8492855a7e6b"
-  #
-  # The version 4 UUID is purely random (except the version).
-  # It doesn't contain meaningful information such as MAC addresses, timestamps, etc.
-  #
-  # The result contains 122 random bits (15.25 random bytes).
-  #
-  # See RFC9562[https://www.rfc-editor.org/rfc/rfc9562] for details of UUIDv4.
-  #
-  def uuid
-    ary = random_bytes(16)
-    ary.setbyte(6, (ary.getbyte(6) & 0x0f) | 0x40)
-    ary.setbyte(8, (ary.getbyte(8) & 0x3f) | 0x80)
-    ary.unpack("H8H4H4H4H12").join(?-)
-  end
-
-  alias uuid_v4 uuid
-
-  # Generate a random v7 UUID (Universally Unique IDentifier).
-  #
-  #   require 'rubygems/vendor/securerandom/lib/random/formatter'
-  #
-  #   Random.uuid_v7 # => "0188d4c3-1311-7f96-85c7-242a7aa58f1e"
-  #   Random.uuid_v7 # => "0188d4c3-16fe-744f-86af-38fa04c62bb5"
-  #   Random.uuid_v7 # => "0188d4c3-1af8-764f-b049-c204ce0afa23"
-  #   Random.uuid_v7 # => "0188d4c3-1e74-7085-b14f-ef6415dc6f31"
-  #   #                    |<--sorted-->| |<----- random ---->|
-  #
-  #   # or
-  #   prng = Random.new
-  #   prng.uuid_v7 # => "0188ca51-5e72-7950-a11d-def7ff977c98"
-  #
-  # The version 7 UUID starts with the least significant 48 bits of a 64 bit
-  # Unix timestamp (milliseconds since the epoch) and fills the remaining bits
-  # with random data, excluding the version and variant bits.
-  #
-  # This allows version 7 UUIDs to be sorted by creation time.  Time ordered
-  # UUIDs can be used for better database index locality of newly inserted
-  # records, which may have a significant performance benefit compared to random
-  # data inserts.
-  #
-  # The result contains 74 random bits (9.25 random bytes).
-  #
-  # Note that this method cannot be made reproducible because its output
-  # includes not only random bits but also timestamp.
-  #
-  # See RFC9562[https://www.rfc-editor.org/rfc/rfc9562] for details of UUIDv7.
-  #
-  # ==== Monotonicity
-  #
-  # UUIDv7 has millisecond precision by default, so multiple UUIDs created
-  # within the same millisecond are not issued in monotonically increasing
-  # order.  To create UUIDs that are time-ordered with sub-millisecond
-  # precision, up to 12 bits of additional timestamp may added with
-  # +extra_timestamp_bits+.  The extra timestamp precision comes at the expense
-  # of random bits.  Setting <tt>extra_timestamp_bits: 12</tt> provides ~244ns
-  # of precision, but only 62 random bits (7.75 random bytes).
-  #
-  #   prng = Random.new
-  #   Array.new(4) { prng.uuid_v7(extra_timestamp_bits: 12) }
-  #   # =>
-  #   ["0188d4c7-13da-74f9-8b53-22a786ffdd5a",
-  #    "0188d4c7-13da-753b-83a5-7fb9b2afaeea",
-  #    "0188d4c7-13da-754a-88ea-ac0baeedd8db",
-  #    "0188d4c7-13da-7557-83e1-7cad9cda0d8d"]
-  #   # |<--- sorted --->| |<-- random --->|
-  #
-  #   Array.new(4) { prng.uuid_v7(extra_timestamp_bits: 8) }
-  #   # =>
-  #   ["0188d4c7-3333-7a95-850a-de6edb858f7e",
-  #    "0188d4c7-3333-7ae8-842e-bc3a8b7d0cf9",  # <- out of order
-  #    "0188d4c7-3333-7ae2-995a-9f135dc44ead",  # <- out of order
-  #    "0188d4c7-3333-7af9-87c3-8f612edac82e"]
-  #   # |<--- sorted -->||<---- random --->|
-  #
-  # Any rollbacks of the system clock will break monotonicity.  UUIDv7 is based
-  # on UTC, which excludes leap seconds and can rollback the clock.  To avoid
-  # this, the system clock can synchronize with an NTP server configured to use
-  # a "leap smear" approach.  NTP or PTP will also be needed to synchronize
-  # across distributed nodes.
-  #
-  # Counters and other mechanisms for stronger guarantees of monotonicity are
-  # not implemented.  Applications with stricter requirements should follow
-  # {Section 6.2}[https://www.rfc-editor.org/rfc/rfc9562.html#name-monotonicity-and-counters]
-  # of the specification.
-  #
-  def uuid_v7(extra_timestamp_bits: 0)
-    case (extra_timestamp_bits = Integer(extra_timestamp_bits))
-    when 0 # min timestamp precision
-      ms = Process.clock_gettime(Process::CLOCK_REALTIME, :millisecond)
-      rand = random_bytes(10)
-      rand.setbyte(0, rand.getbyte(0) & 0x0f | 0x70) # version
-      rand.setbyte(2, rand.getbyte(2) & 0x3f | 0x80) # variant
-      "%08x-%04x-%s" % [
-        (ms & 0x0000_ffff_ffff_0000) >> 16,
-        (ms & 0x0000_0000_0000_ffff),
-        rand.unpack("H4H4H12").join("-")
-      ]
-
-    when 12 # max timestamp precision
-      ms, ns = Process.clock_gettime(Process::CLOCK_REALTIME, :nanosecond)
-        .divmod(1_000_000)
-      extra_bits = ns * 4096 / 1_000_000
-      rand = random_bytes(8)
-      rand.setbyte(0, rand.getbyte(0) & 0x3f | 0x80) # variant
-      "%08x-%04x-7%03x-%s" % [
-        (ms & 0x0000_ffff_ffff_0000) >> 16,
-        (ms & 0x0000_0000_0000_ffff),
-        extra_bits,
-        rand.unpack("H4H12").join("-")
-      ]
-
-    when (0..12) # the generic version is slower than the special cases above
-      rand_a, rand_b1, rand_b2, rand_b3 = random_bytes(10).unpack("nnnN")
-      rand_mask_bits = 12 - extra_timestamp_bits
-      ms, ns = Process.clock_gettime(Process::CLOCK_REALTIME, :nanosecond)
-        .divmod(1_000_000)
-      "%08x-%04x-%04x-%04x-%04x%08x" % [
-        (ms & 0x0000_ffff_ffff_0000) >> 16,
-        (ms & 0x0000_0000_0000_ffff),
-        0x7000 |
-          ((ns * (1 << extra_timestamp_bits) / 1_000_000) << rand_mask_bits) |
-          rand_a & ((1 << rand_mask_bits) - 1),
-        0x8000 | (rand_b1 & 0x3fff),
-        rand_b2,
-        rand_b3
-      ]
-
-    else
-      raise ArgumentError, "extra_timestamp_bits must be in 0..12"
-    end
-  end
-
-  # Internal interface to Random; Generate random data _n_ bytes.
-  private def gen_random(n)
-    self.bytes(n)
-  end
-
-  # Generate a string that randomly draws from a
-  # source array of characters.
-  #
-  # The argument _source_ specifies the array of characters from which
-  # to generate the string.
-  # The argument _n_ specifies the length, in characters, of the string to be
-  # generated.
-  #
-  # The result may contain whatever characters are in the source array.
-  #
-  #   require 'rubygems/vendor/securerandom/lib/random/formatter'
-  #
-  #   prng.choose([*'l'..'r'], 16) #=> "lmrqpoonmmlqlron"
-  #   prng.choose([*'0'..'9'], 5)  #=> "27309"
-  private def choose(source, n)
-    size = source.size
-    m = 1
-    limit = size
-    while limit * size <= 0x100000000
-      limit *= size
-      m += 1
-    end
-    result = ''.dup
-    while m <= n
-      rs = random_number(limit)
-      is = rs.digits(size)
-      (m-is.length).times { is << 0 }
-      result << source.values_at(*is).join('')
-      n -= m
-    end
-    if 0 < n
-      rs = random_number(limit)
-      is = rs.digits(size)
-      if is.length < n
-        (n-is.length).times { is << 0 }
-      else
-        is.pop while n < is.length
-      end
-      result.concat source.values_at(*is).join('')
-    end
-    result
-  end
-
-  # The default character list for #alphanumeric.
-  ALPHANUMERIC = [*'A'..'Z', *'a'..'z', *'0'..'9']
-
-  # Generate a random alphanumeric string.
-  #
-  # The argument _n_ specifies the length, in characters, of the alphanumeric
-  # string to be generated.
-  # The argument _chars_ specifies the character list which the result is
-  # consist of.
-  #
-  # If _n_ is not specified or is nil, 16 is assumed.
-  # It may be larger in the future.
-  #
-  # The result may contain A-Z, a-z and 0-9, unless _chars_ is specified.
-  #
-  #   require 'rubygems/vendor/securerandom/lib/random/formatter'
-  #
-  #   Random.alphanumeric     #=> "2BuBuLf3WfSKyQbR"
-  #   # or
-  #   prng = Random.new
-  #   prng.alphanumeric(10) #=> "i6K93NdqiH"
-  #
-  #   Random.alphanumeric(4, chars: [*"0".."9"]) #=> "2952"
-  #   # or
-  #   prng = Random.new
-  #   prng.alphanumeric(10, chars: [*"!".."/"]) #=> ",.,++%/''."
-  def alphanumeric(n = nil, chars: ALPHANUMERIC)
-    n = 16 if n.nil?
-    choose(chars, n)
-  end
-end
diff --git a/lib/rubygems/vendor/securerandom/lib/securerandom.rb b/lib/rubygems/vendor/securerandom/lib/securerandom.rb
index 2b456705a1360f..9b9ec3e312def4 100644
--- a/lib/rubygems/vendor/securerandom/lib/securerandom.rb
+++ b/lib/rubygems/vendor/securerandom/lib/securerandom.rb
@@ -1,7 +1,7 @@
 # -*- coding: us-ascii -*-
 # frozen_string_literal: true
 
-require_relative 'random/formatter'
+require 'random/formatter'
 
 # == Secure random number generator interface.
 #
@@ -18,7 +18,7 @@
 # * /dev/urandom
 # * Win32
 #
-# Gem::SecureRandom is extended by the Gem::Random::Formatter module which
+# Gem::SecureRandom is extended by the Random::Formatter module which
 # defines the following methods:
 #
 # * alphanumeric
@@ -41,7 +41,7 @@
 module Gem::SecureRandom
 
   # The version
-  VERSION = "0.3.2"
+  VERSION = "0.4.0"
 
   class << self
     # Returns a random binary string containing +size+ bytes.
@@ -88,9 +88,9 @@ def gen_random_urandom(n)
 
     # :startdoc:
 
-    # Generate random data bytes for Gem::Random::Formatter
+    # Generate random data bytes for Random::Formatter
     public :gen_random
   end
 end
 
-Gem::SecureRandom.extend(Gem::Random::Formatter)
+Gem::SecureRandom.extend(Random::Formatter)
diff --git a/lib/rubygems/vendored_securerandom.rb b/lib/rubygems/vendored_securerandom.rb
index 0ce26905c455ec..859b6d7d7aacb4 100644
--- a/lib/rubygems/vendored_securerandom.rb
+++ b/lib/rubygems/vendored_securerandom.rb
@@ -1,4 +1,3 @@
 # frozen_string_literal: true
 
-module Gem::Random; end
 require_relative "vendor/securerandom/lib/securerandom"
diff --git a/tool/bundler/vendor_gems.rb b/tool/bundler/vendor_gems.rb
index 7103f02bb27c40..7e9a9bf2a0c93c 100644
--- a/tool/bundler/vendor_gems.rb
+++ b/tool/bundler/vendor_gems.rb
@@ -10,7 +10,7 @@
 gem "optparse", "0.6.0"
 gem "pub_grub", github: "jhawthorn/pub_grub"
 gem "resolv", "0.5.0"
-gem "securerandom", "0.3.2"
+gem "securerandom", "0.4.0"
 gem "timeout", "0.4.2"
 gem "thor", "1.3.2"
 gem "tsort", "0.2.0"