diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 267f6b6..4475fcb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,7 +11,13 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: ['2.7', '3.0', '3.1']
+        include:
+          - ruby: '2.7'
+          - ruby: '3.0'
+          - ruby: '3.1'
+          - ruby: '3.2'
+          - ruby: '3.3'
+          - ruby: '3.4'
 
     steps:
       - uses: actions/checkout@v4
diff --git a/lib/jsonapi/swagger/json.rb b/lib/jsonapi/swagger/json.rb
index b23c3e9..d17f88c 100644
--- a/lib/jsonapi/swagger/json.rb
+++ b/lib/jsonapi/swagger/json.rb
@@ -9,7 +9,20 @@ def initialize(path = 'swagger/v1/swagger.json')
       end
 
       def parse_doc
-        @doc ||= JSON.parse(load) rescue Hash.new{ |h, k| h[k]= {} }
+        @doc ||= begin
+          parsed = JSON.parse(load)
+
+          doc = Hash.new { |h, k| h[k] = {} }
+          doc.merge!(parsed) if parsed.is_a?(Hash)
+
+          if doc.key?('paths') && !doc['paths'].is_a?(Hash)
+            doc['paths'] = {}
+          end
+
+          doc
+        rescue StandardError
+          Hash.new { |h, k| h[k] = {} }
+        end
       end
 
       def base_path
@@ -28,4 +41,4 @@ def load
 
     end
   end
-end
\ No newline at end of file
+end
diff --git a/spec/integration/swagger_generator_spec.rb b/spec/integration/swagger_generator_spec.rb
index cbe206f..27e0221 100644
--- a/spec/integration/swagger_generator_spec.rb
+++ b/spec/integration/swagger_generator_spec.rb
@@ -13,7 +13,9 @@ class NamedBase
       class << self
         attr_accessor :_source_root, :_destination_root
 
-        def desc(*) = nil
+        def desc(*)
+          nil
+        end
 
         def source_root(path = nil)
           self._source_root = path if path
@@ -77,13 +79,33 @@ def template(src, dest)
     relation.define_singleton_method(:belongs_to?) { true }
 
     resource = Class.new(JSONAPI::Resource) do
-      def self._attributes = { id: nil, name: nil }
-      def self._relationships = { company: OpenStruct.new(class_name: 'Company', table_name: 'companies') }
-      def self.sortable_fields = [:name]
-      def self.creatable_fields = [:name]
-      def self.updatable_fields = [:name]
-      def self.filters = { name: {} }
-      def self.mutable? = true
+      def self._attributes
+        { id: nil, name: nil }
+      end
+
+      def self._relationships
+        { company: OpenStruct.new(class_name: 'Company', table_name: 'companies') }
+      end
+
+      def self.sortable_fields
+        [:name]
+      end
+
+      def self.creatable_fields
+        [:name]
+      end
+
+      def self.updatable_fields
+        [:name]
+      end
+
+      def self.filters
+        { name: {} }
+      end
+
+      def self.mutable?
+        true
+      end
     end
 
     # Ensure relationship object has belongs_to? and table_name.
diff --git a/spec/jsonapi/swagger/resource_spec.rb b/spec/jsonapi/swagger/resource_spec.rb
index 112ea1c..4ec5ace 100644
--- a/spec/jsonapi/swagger/resource_spec.rb
+++ b/spec/jsonapi/swagger/resource_spec.rb
@@ -14,13 +14,33 @@
 
   it 'wraps JSONAPI::Resource subclasses' do
     klass = Class.new(JSONAPI::Resource) do
-      def self._attributes = { id: {}, name: {} }
-      def self._relationships = {}
-      def self.sortable_fields = []
-      def self.creatable_fields = []
-      def self.updatable_fields = []
-      def self.filters = {}
-      def self.mutable? = false
+      def self._attributes
+        { id: {}, name: {} }
+      end
+
+      def self._relationships
+        {}
+      end
+
+      def self.sortable_fields
+        []
+      end
+
+      def self.creatable_fields
+        []
+      end
+
+      def self.updatable_fields
+        []
+      end
+
+      def self.filters
+        {}
+      end
+
+      def self.mutable?
+        false
+      end
     end
     stub_const('UserResource', klass)
 
@@ -31,10 +51,21 @@ def self.mutable? = false
 
   it 'wraps JSONAPI::Serializable::Resource subclasses' do
     klass = Class.new(JSONAPI::Serializable::Resource) do
-      def self.type_val = :users
-      def self.attribute_blocks = { id: nil, name: nil }
-      def self.relationship_blocks = { company: nil }
-      def self.link_blocks = {}
+      def self.type_val
+        :users
+      end
+
+      def self.attribute_blocks
+        { id: nil, name: nil }
+      end
+
+      def self.relationship_blocks
+        { company: nil }
+      end
+
+      def self.link_blocks
+        {}
+      end
     end
     stub_const('SerializableUser', klass)
 
@@ -46,8 +77,13 @@ def self.link_blocks = {}
 
   it 'wraps FastJsonapi::ObjectSerializer subclasses' do
     klass = Class.new(FastJsonapi::ObjectSerializer) do
-      def self.attributes_to_serialize = { id: {}, name: {} }
-      def self.relationships_to_serialize = {}
+      def self.attributes_to_serialize
+        { id: {}, name: {} }
+      end
+
+      def self.relationships_to_serialize
+        {}
+      end
     end
     stub_const('UserSerializer', klass)
 
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 6384414..9ce1e0d 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -2,6 +2,7 @@
 
 require 'json'
 
+require 'logger'
 require 'active_support'
 require 'active_support/core_ext/hash/except'
 require 'active_support/core_ext/object/blank'
@@ -14,6 +15,24 @@
 require 'jsonapi/swagger'
 
 RSpec.configure do |config|
+  config.around do |example|
+    swagger = Jsonapi::Swagger
+    ivars = %i[
+      @version
+      @info
+      @file_path
+      @base_path
+      @use_rswag
+      @attribute_default
+    ]
+
+    saved = ivars.to_h { |ivar| [ivar, swagger.instance_variable_get(ivar)] }
+
+    example.run
+  ensure
+    saved.each { |ivar, value| swagger.instance_variable_set(ivar, value) }
+  end
+
   config.disable_monkey_patching!
   config.order = :random
   Kernel.srand config.seed