diff --git a/Gemfile b/Gemfile
index ac31ad3..a11525c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -6,7 +6,7 @@ gem "debug"
 if (rails_version = ENV["RAILS_VERSION"])
   gem "rails", "~> #{rails_version}"
 else
-  gem "rails"
+  gem "rails", "7.0.8.4"
 end
 gem "syntax_tree"
 gem "typeprof"
diff --git a/lib/hoardable/has_one.rb b/lib/hoardable/has_one.rb
index ef9843c..a31c87b 100644
--- a/lib/hoardable/has_one.rb
+++ b/lib/hoardable/has_one.rb
@@ -10,10 +10,8 @@ def has_one(*args)
         options = args.extract_options!
         hoardable = options.delete(:hoardable)
         name = args.first
-        has_one_options = super(*args, **options)[name]&.options
-        unless hoardable || (has_one_options && has_one_options[:class_name].match?(/RichText$/))
-          return
-        end
+        association = super(*args, **options).symbolize_keys[name]
+        return unless hoardable || (association.options[:class_name].match?(/RichText$/))
 
         class_eval <<-RUBY, __FILE__, __LINE__ + 1
           def #{name}
diff --git a/test/test_schema_dumper.rb b/test/test_schema_dumper.rb
index 84a424c..034ac57 100644
--- a/test/test_schema_dumper.rb
+++ b/test/test_schema_dumper.rb
@@ -32,7 +32,11 @@ class TestSchemaDumper < ActiveSupport::TestCase
   private def dump_table_schema(*table_names)
     connection = ActiveRecord::Base.connection
     ActiveRecord::SchemaDumper.ignore_tables = connection.data_sources - table_names
-    output, = capture_io { ActiveRecord::SchemaDumper.dump(ActiveRecord::Base.connection_pool) }
-    output
+    if ActiveRecord.version >= Gem::Version.new("7.2.1")
+      output, = capture_io { ActiveRecord::SchemaDumper.dump(ActiveRecord::Base.connection_pool) }
+      output
+    else
+      ActiveRecord::SchemaDumper.dump(connection, StringIO.new).string
+    end
   end
 end