diff --git a/jsonapi-rails.gemspec b/jsonapi-rails.gemspec
index 65856fe..656a00b 100644
--- a/jsonapi-rails.gemspec
+++ b/jsonapi-rails.gemspec
@@ -14,7 +14,7 @@ Gem::Specification.new do |spec|
   spec.files         = Dir['README.md', 'lib/**/*']
   spec.require_path  = 'lib'
 
-  spec.add_dependency 'jsonapi-rb', '~> 0.1', '>= 0.1.3'
+  spec.add_dependency 'jsonapi-rb', '~> 0.2.1'
 
   spec.add_development_dependency 'rails', '~> 5.0'
   spec.add_development_dependency 'sqlite3'
diff --git a/lib/jsonapi/rails/railtie.rb b/lib/jsonapi/rails/railtie.rb
index 77823b0..2ac26e4 100644
--- a/lib/jsonapi/rails/railtie.rb
+++ b/lib/jsonapi/rails/railtie.rb
@@ -10,8 +10,8 @@ module Rails
     class Railtie < ::Rails::Railtie
       MEDIA_TYPE = 'application/vnd.api+json'.freeze
       RENDERERS = {
-        jsonapi:       JSONAPI::Rails.rails_renderer(SuccessRenderer),
-        jsonapi_error: JSONAPI::Rails.rails_renderer(ErrorRenderer)
+        jsonapi:       SuccessRenderer.new,
+        jsonapi_error: ErrorsRenderer.new
       }.freeze
 
       initializer 'jsonapi-rails.action_controller' do
@@ -27,8 +27,20 @@ class Railtie < ::Rails::Railtie
             ::ActionDispatch::ParamsParser::DEFAULT_PARSERS[Mime[:jsonapi]] = PARSER
           end
 
-          RENDERERS.each do |key, renderer|
-            ::ActionController::Renderers.add(key, &renderer)
+          ::ActionController::Renderers.add(:jsonapi) do |resources, options|
+            self.content_type ||= Mime[:jsonapi]
+
+            RENDERERS[:jsonapi].render(resources, options).to_json
+          end
+
+          ::ActionController::Renderers.add(:jsonapi_error) do |errors, options|
+            # Renderer proc is evaluated in the controller context, so it
+            # has access to the request object.
+            reverse_mapping = request.env[ActionController::REVERSE_MAPPING_KEY]
+            options = options.merge(_reverse_mapping: reverse_mapping)
+            self.content_type ||= Mime[:jsonapi]
+
+            RENDERERS[:jsonapi_error].render(errors, options).to_json
           end
 
           JSONAPI::Deserializable::Resource.configure do |config|
diff --git a/lib/jsonapi/rails/renderer.rb b/lib/jsonapi/rails/renderer.rb
index 4fd13c2..964d1ac 100644
--- a/lib/jsonapi/rails/renderer.rb
+++ b/lib/jsonapi/rails/renderer.rb
@@ -3,7 +3,13 @@
 module JSONAPI
   module Rails
     class SuccessRenderer
-      def self.render(resources, options)
+      def initialize(renderer = JSONAPI::Serializable::SuccessRenderer.new)
+        @renderer = renderer
+
+        freeze
+      end
+
+      def render(resources, options)
         opts = options.dup
         # TODO(beauby): Move this to a global configuration.
         default_exposures = {
@@ -12,29 +18,20 @@ def self.render(resources, options)
         opts[:expose] = default_exposures.merge!(opts[:expose] || {})
         opts[:jsonapi] = opts.delete(:jsonapi_object)
 
-        JSONAPI::Serializable::Renderer.render(resources, opts)
+        @renderer.render(resources, opts)
       end
     end
 
-    class ErrorRenderer
-      def self.render(errors, options)
-        # TODO(beauby): SerializableError inference on AR validation errors.
-        JSONAPI::Serializable::ErrorRenderer.render(errors, options)
-      end
-    end
+    class ErrorsRenderer
+      def initialize(renderer = JSONAPI::Serializable::ErrorsRenderer.new)
+        @renderer = renderer
 
-    module_function
+        freeze
+      end
 
-    # @api private
-    def rails_renderer(renderer)
-      proc do |json, options|
-        # Renderer proc is evaluated in the controller context, so it
-        # has access to the request object.
-        reverse_mapping = request.env[ActionController::REVERSE_MAPPING_KEY]
-        options = options.merge(_reverse_mapping: reverse_mapping)
-        json = renderer.render(json, options).to_json unless json.is_a?(String)
-        self.content_type ||= Mime[:jsonapi]
-        self.response_body = json
+      def render(errors, options)
+        # TODO(beauby): SerializableError inference on AR validation errors.
+        @renderer.render(errors, options)
       end
     end
   end