diff --git a/pkgs/development/interpreters/ruby/default.nix b/pkgs/development/interpreters/ruby/default.nix
index cc540c7c560f..3c9aba07df20 100644
--- a/pkgs/development/interpreters/ruby/default.nix
+++ b/pkgs/development/interpreters/ruby/default.nix
@@ -20,7 +20,6 @@ let
 
   generic = { version, hash, cargoHash ? null }: let
     ver = version;
-    atLeast30 = lib.versionAtLeast ver.majMin "3.0";
     atLeast31 = lib.versionAtLeast ver.majMin "3.1";
     atLeast32 = lib.versionAtLeast ver.majMin "3.2";
     # https://github.com/ruby/ruby/blob/v3_2_2/yjit.h#L21
@@ -84,7 +83,7 @@ let
           ++ (op fiddleSupport libffi)
           ++ (ops cursesSupport [ ncurses readline ])
           ++ (op zlibSupport zlib)
-          ++ (op (atLeast30 && opensslSupport) openssl)
+          ++ (op opensslSupport openssl)
           ++ (op gdbmSupport gdbm)
           ++ (op yamlSupport libyaml)
           # Looks like ruby fails to build on darwin without readline even if curses
@@ -102,7 +101,7 @@ let
         enableParallelInstalling = false;
 
         patches = op (lib.versionOlder ver.majMin "3.1") ./do-not-regenerate-revision.h.patch
-          ++ op (atLeast30 && useBaseRuby) (
+          ++ op useBaseRuby (
             if atLeast32 then ./do-not-update-gems-baseruby-3.2.patch
             else ./do-not-update-gems-baseruby.patch
           )
@@ -113,21 +112,6 @@ let
               hash = "sha256-43hI9L6bXfeujgmgKFVmiWhg7OXvshPCCtQ4TxqK1zk=";
             })
          ]
-          ++ ops (!atLeast30 && rubygemsSupport) [
-            # We upgrade rubygems to a version that isn't compatible with the
-            # ruby 2.7 installer. Backport the upstream fix.
-            ./rbinstall-new-rubygems-compat.patch
-
-            # Ruby prior to 3.0 has a bug the installer (tools/rbinstall.rb) but
-            # the resulting error was swallowed. Newer rubygems no longer swallows
-            # this error. We upgrade rubygems when rubygemsSupport is enabled, so
-            # we have to fix this bug to prevent the install step from failing.
-            # See https://github.com/ruby/ruby/pull/2930
-            (fetchpatch {
-              url = "https://github.com/ruby/ruby/commit/261d8dd20afd26feb05f00a560abd99227269c1c.patch";
-              hash = "sha256-HqfaevMYuIVOsdEr+CnjnUqr2IrH5fkW2uKzzoqIMXM=";
-            })
-          ]
           ++ ops atLeast31 [
             # When using a baseruby, ruby always sets "libdir" to the build
             # directory, which nix rejects due to a reference in to /build/ in
@@ -154,10 +138,6 @@ let
           sed -i configure.ac -e '/config.guess/d'
           cp --remove-destination ${config}/config.guess tool/
           cp --remove-destination ${config}/config.sub tool/
-        '' + opString (!atLeast30) ''
-          # Make the build reproducible for ruby <= 2.7
-          # See https://github.com/ruby/io-console/commit/679a941d05d869f5e575730f6581c027203b7b26#diff-d8422f096931c58d4463e2489f62a228b0f24f0492950ba88c8c89a0d741cfe6
-          sed -i ext/io/console/io-console.gemspec -e '/s\.date/d'
         '';
 
         configureFlags = [
diff --git a/pkgs/development/interpreters/ruby/rbinstall-new-rubygems-compat.patch b/pkgs/development/interpreters/ruby/rbinstall-new-rubygems-compat.patch
deleted file mode 100644
index 54ce8a357a86..000000000000
--- a/pkgs/development/interpreters/ruby/rbinstall-new-rubygems-compat.patch
+++ /dev/null
@@ -1,87 +0,0 @@
-From 8e85d27f9ccfe152fc1b891c19f125915a907493 Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?V=C3=ADt=20Ondruch?= <vondruch@redhat.com>
-Date: Tue, 1 Oct 2019 12:03:33 +0200
-Subject: [PATCH] Use `Gem::Package` like object instead of monkey patching.
-
-1. This is similar to what RubyGems does and it is less magic [[1]].
-2. It avoids deprecated code paths in RubyGems [[2]].
-
-[1]: https://github.com/rubygems/rubygems/blob/92892bbc3adba86a90756c385433835f6761b8da/lib/rubygems/installer.rb#L151
-[2]: https://github.com/rubygems/rubygems/blob/92892bbc3adba86a90756c385433835f6761b8da/lib/rubygems/installer.rb#L187
-
-(cherry picked from commit e960ef6f18a25c637c54f00c75bb6c24f8ab55d0)
----
- tool/rbinstall.rb | 47 +++++++++++++++++++++++++++--------------------
- 1 file changed, 27 insertions(+), 20 deletions(-)
-
-diff --git a/tool/rbinstall.rb b/tool/rbinstall.rb
-index 060390626f..28ae8c409a 100755
---- a/tool/rbinstall.rb
-+++ b/tool/rbinstall.rb
-@@ -710,28 +710,34 @@ def remove_prefix(prefix, string)
-     end
-   end
- 
--  class UnpackedInstaller < Gem::Installer
--    module DirPackage
--      def extract_files(destination_dir, pattern = "*")
--        path = File.dirname(@gem.path)
--        return if path == destination_dir
--        File.chmod(0700, destination_dir)
--        mode = pattern == "bin/*" ? $script_mode : $data_mode
--        spec.files.each do |f|
--          src = File.join(path, f)
--          dest = File.join(without_destdir(destination_dir), f)
--          makedirs(dest[/.*(?=\/)/m])
--          install src, dest, :mode => mode
--        end
--        File.chmod($dir_mode, destination_dir)
-+  class DirPackage
-+    attr_reader :spec
-+
-+    attr_accessor :dir_mode
-+    attr_accessor :prog_mode
-+    attr_accessor :data_mode
-+
-+    def initialize(spec)
-+      @spec = spec
-+      @src_dir = File.dirname(@spec.loaded_from)
-+    end
-+
-+    def extract_files(destination_dir, pattern = "*")
-+      path = @src_dir
-+      return if path == destination_dir
-+      File.chmod(0700, destination_dir)
-+      mode = pattern == "bin/*" ? $script_mode : $data_mode
-+      spec.files.each do |f|
-+        src = File.join(path, f)
-+        dest = File.join(without_destdir(destination_dir), f)
-+        makedirs(dest[/.*(?=\/)/m])
-+        install src, dest, :mode => mode
-       end
-+      File.chmod($dir_mode, destination_dir)
-     end
-+  end
- 
--    def initialize(spec, *options)
--      super(spec.loaded_from, *options)
--      @package.extend(DirPackage).spec = spec
--    end
--
-+  class UnpackedInstaller < Gem::Installer
-     def write_cache_file
-     end
- 
-@@ -890,7 +896,8 @@ def install_default_gem(dir, srcdir)
-     if File.directory?(ext = "#{gem_ext_dir}/#{spec.full_name}")
-       spec.extensions[0] ||= "-"
-     end
--    ins = RbInstall::UnpackedInstaller.new(spec, options)
-+    package = RbInstall::DirPackage.new spec
-+    ins = RbInstall::UnpackedInstaller.new(package, options)
-     puts "#{INDENT}#{spec.name} #{spec.version}"
-     ins.install
-     File.chmod($data_mode, File.join(install_dir, "specifications", "#{spec.full_name}.gemspec"))
--- 
-2.35.1
-