update Gemfile

temp_file/Gemfile

@@ -2,12 +2,12 @@ begin
   require ::File.expand_path('../app/helpers/bundler_helper.rb',  __FILE__)
   extend BundlerHelper
 rescue LoadError
-  def bundler_with_clean_env
+  def bundler_with_clean_env(&block)
       if block_given?
         if Bundler.respond_to?(:with_unbundled_env)
-            Bundler.with_unbundled_env(&Proc.new)
+          Bundler.with_unbundled_env(&block)
         else
-            Bundler.with_clean_env(&Proc.new)
+          Bundler.with_clean_env(&block)
         end
       end
     end
@@ -186,7 +186,6 @@ else
   gem 'sdoc',          group: :doc
   gem 'spring',       group: :development
   gem 'active_model_serializers', '~> 0.10.0'
-  gem 'rails', '5.2.7'
   gem 'railties'
   gem 'rss'
   #parser
@@ -248,6 +247,11 @@ else
     gem "minitest"
     gem 'minitest-spec-rails'
   end
+  if RUBY_VERSION.to_f < 3
+    gem 'rails', '5.2.7'
+  else
+    gem 'rails', '7.0.4.3'
+  end
 end
 gem 'net_http_unix'
 gem 'roda', '3.66.0'