diff --git a/exe/ruby-lsp b/exe/ruby-lsp
index 1c2833c2d..612e0f80f 100755
--- a/exe/ruby-lsp
+++ b/exe/ruby-lsp
@@ -37,6 +37,27 @@ parser = OptionParser.new do |opts|
     options[:launcher] = true
   end
 
+  opts.on("--update-server", "Update the Ruby LSP server") do
+    puts("Ruby LSP> Executing server update...")
+    require_relative "../lib/ruby_lsp/setup_bundler"
+
+    begin
+      env = RubyLsp::SetupBundler.new(Dir.pwd, **options).setup!
+    rescue RubyLsp::SetupBundler::BundleNotLocked
+      warn("Project contains a Gemfile, but no Gemfile.lock. Run `bundle install` to lock gems")
+      exit(78)
+    end
+
+    bundler_path = File.join(Gem.default_bindir, "bundle")
+    base_command = (!Gem.win_platform? && File.exist?(bundler_path) ? "#{Gem.ruby} #{bundler_path}" : "bundle").dup
+
+    if env["BUNDLER_VERSION"]
+      base_command << " _#{env["BUNDLER_VERSION"]}_"
+    end
+
+    exit(exec(env, "#{base_command} update ruby-lsp".strip))
+  end
+
   opts.on("-h", "--help", "Print this help") do
     puts opts.help
     puts
diff --git a/test/integration_test.rb b/test/integration_test.rb
index 3fdc4b5a6..6890035ca 100644
--- a/test/integration_test.rb
+++ b/test/integration_test.rb
@@ -333,6 +333,41 @@ def test_launch_mode_retries_if_setup_failed_after_successful_install
     end
   end
 
+  def test_update_server_command
+    in_temp_dir do |dir|
+      File.write(File.join(dir, "Gemfile"), <<~RUBY)
+        source "https://rubygems.org"
+        gem "stringio"
+      RUBY
+
+      lockfile_contents = <<~LOCKFILE
+        GEM
+          remote: https://rubygems.org/
+          specs:
+            stringio (3.1.7)
+
+        PLATFORMS
+          arm64-darwin-23
+          ruby
+
+        DEPENDENCIES
+          stringio
+
+        BUNDLED WITH
+          2.5.7
+      LOCKFILE
+      File.write(File.join(dir, "Gemfile.lock"), lockfile_contents)
+
+      Bundler.with_unbundled_env do
+        stdout, _ = capture_subprocess_io do
+          system(File.join(@root, "exe", "ruby-lsp"), "--update-server")
+        end
+
+        assert_includes(stdout, "Executing server update...")
+      end
+    end
+  end
+
   private
 
   def launch(workspace_path, exec = "ruby-lsp-launcher", extra_env = {})