diff --git a/Gemfile.lock b/Gemfile.lock
index 94f6472..79e803c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,7 +2,7 @@ PATH
   remote: .
   specs:
     yookassa (0.1.0)
-      dry-initializer
+      dry-struct
       http (~> 5.0.1)
 
 GEM
@@ -13,13 +13,35 @@ GEM
     ast (2.4.2)
     byebug (11.1.3)
     coderay (1.1.3)
+    concurrent-ruby (1.1.9)
     crack (0.4.5)
       rexml
     diff-lcs (1.4.4)
     docile (1.4.0)
     domain_name (0.5.20190701)
       unf (>= 0.0.5, < 1.0.0)
-    dry-initializer (3.0.4)
+    dry-configurable (0.13.0)
+      concurrent-ruby (~> 1.0)
+      dry-core (~> 0.6)
+    dry-container (0.9.0)
+      concurrent-ruby (~> 1.0)
+      dry-configurable (~> 0.13, >= 0.13.0)
+    dry-core (0.7.1)
+      concurrent-ruby (~> 1.0)
+    dry-inflector (0.2.1)
+    dry-logic (1.2.0)
+      concurrent-ruby (~> 1.0)
+      dry-core (~> 0.5, >= 0.5)
+    dry-struct (1.4.0)
+      dry-core (~> 0.5, >= 0.5)
+      dry-types (~> 1.5)
+      ice_nine (~> 0.11)
+    dry-types (1.5.1)
+      concurrent-ruby (~> 1.0)
+      dry-container (~> 0.3)
+      dry-core (~> 0.5, >= 0.5)
+      dry-inflector (~> 0.1, >= 0.1.2)
+      dry-logic (~> 1.0, >= 1.0.2)
     ffi (1.15.4)
     ffi-compiler (1.0.1)
       ffi (>= 1.0.0)
@@ -33,6 +55,7 @@ GEM
     http-cookie (1.0.4)
       domain_name (~> 0.5)
     http-form_data (2.3.0)
+    ice_nine (0.11.2)
     llhttp-ffi (0.4.0)
       ffi-compiler (~> 1.0)
       rake (~> 13.0)
diff --git a/lib/yookassa.rb b/lib/yookassa.rb
index b70d279..aaebd55 100644
--- a/lib/yookassa.rb
+++ b/lib/yookassa.rb
@@ -1,16 +1,13 @@
 # frozen_string_literal: true
 
 require "http"
-require "dry-initializer"
+require "dry-struct"
 require "yookassa/version"
 require "yookassa/payment"
 require "yookassa/refund"
-require "yookassa/response"
-require "yookassa/callable"
-require "yookassa/optional"
 require "yookassa/entity/payment"
 require "yookassa/entity/refund"
-require "yookassa/error"
+require "yookassa/entity/error"
 require "yookassa/config"
 require "yookassa/http_helpers"
 
diff --git a/lib/yookassa/callable.rb b/lib/yookassa/callable.rb
deleted file mode 100644
index fa08026..0000000
--- a/lib/yookassa/callable.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-# frozen_string_literal: true
-
-module Yookassa
-  module Callable
-    def call(*args)
-      new(*args)
-    end
-    alias [] call
-  end
-end
diff --git a/lib/yookassa/entity/amount.rb b/lib/yookassa/entity/amount.rb
index 4182e04..2db9abf 100644
--- a/lib/yookassa/entity/amount.rb
+++ b/lib/yookassa/entity/amount.rb
@@ -1,14 +1,12 @@
 # frozen_string_literal: true
 
+require_relative "./types"
+
 module Yookassa
   module Entity
-    class Amount
-      extend  Dry::Initializer
-      extend  Yookassa::Callable
-      include Yookassa::Optional
-
-      option :value, proc(&:to_f), optional: true
-      option :currency, proc(&:to_s), optional: true
+    class Amount < Dry::Struct
+      attribute :value, Types::Coercible::Float
+      attribute :currency, Types::String
     end
   end
 end
diff --git a/lib/yookassa/entity/card.rb b/lib/yookassa/entity/card.rb
index 26b23a7..599220e 100644
--- a/lib/yookassa/entity/card.rb
+++ b/lib/yookassa/entity/card.rb
@@ -1,18 +1,16 @@
 # frozen_string_literal: true
 
+require_relative "./types"
+
 module Yookassa
   module Entity
-    class Card
-      extend  Dry::Initializer
-      extend  Yookassa::Callable
-      include Yookassa::Optional
-
-      option :first6
-      option :last4
-      option :expiry_month
-      option :expiry_year
-      option :card_type, proc(&:to_s)
-      option :source, proc(&:to_s), optional: true
+    class Card < Dry::Struct
+      attribute :first6, Types::Integer
+      attribute :last4, Types::Integer
+      attribute :expiry_month, Types::Integer
+      attribute :expiry_year, Types::Integer
+      attribute :card_type, Types::String
+      attribute :source, Types::String
     end
   end
 end
diff --git a/lib/yookassa/entity/confirmation.rb b/lib/yookassa/entity/confirmation.rb
index cab9f3a..3454dd7 100644
--- a/lib/yookassa/entity/confirmation.rb
+++ b/lib/yookassa/entity/confirmation.rb
@@ -1,16 +1,14 @@
 # frozen_string_literal: true
 
+require_relative "./types"
+
 module Yookassa
   module Entity
-    class Confirmation
-      extend  Dry::Initializer
-      extend  Yookassa::Callable
-      include Yookassa::Optional
-
-      option :type, proc(&:to_s), optional: true
-      option :confirmation_url, proc(&:to_s), optional: true
-      option :enforce, optional: true
-      option :return_url, proc(&:to_s), optional: true
+    class Confirmation < Dry::Struct
+      attribute :type, Types::String
+      attribute :confirmation_url, Types::String
+      attribute? :enforce, Types::Bool
+      attribute? :return_url, Types::String
     end
   end
 end
diff --git a/lib/yookassa/entity/error.rb b/lib/yookassa/entity/error.rb
new file mode 100644
index 0000000..6d225e4
--- /dev/null
+++ b/lib/yookassa/entity/error.rb
@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+
+module Yookassa
+  module Entity
+    class Error < Dry::Struct
+      attribute :type, Types::String
+      attribute? :id, Types::String
+      attribute? :code, Types::String
+      attribute? :description, Types::String
+      attribute? :parameter, Types::String
+
+      def error?
+        type == "error"
+      end
+    end
+  end
+end
diff --git a/lib/yookassa/entity/payment.rb b/lib/yookassa/entity/payment.rb
index 7fb4133..1e4667b 100644
--- a/lib/yookassa/entity/payment.rb
+++ b/lib/yookassa/entity/payment.rb
@@ -1,22 +1,26 @@
 # frozen_string_literal: true
 
+require_relative "./types"
 require_relative "./amount"
 require_relative "./payment_method"
 require_relative "./confirmation"
 
 module Yookassa
   module Entity
-    class Payment < Yookassa::Response
-      option :paid
-      option :amount, Entity::Amount
-      option :created_at
-      option :captured_at, proc(&:to_s), optional: true
-      option :expires_at, optional: true
-      option :description, proc(&:to_s), optional: true
-      option :metadata, optional: true
-      option :payment_method, Entity::PaymentMethod, optional: true
-      option :confirmation, Entity::Confirmation, optional: true
-      option :test
+    class Payment < Dry::Struct
+      attribute :id, Types::String
+      attribute :status, Types::String.enum("pending", "waiting_for_capture", "succeeded", "canceled")
+      attribute :paid, Types::Bool
+      attribute :amount, Entity::Amount
+      attribute? :income_amount, Entity::Amount
+      attribute :created_at, Types::String
+      attribute? :captured_at, Types::String
+      attribute? :expires_at, Types::String
+      attribute? :description, Types::String
+      attribute :metadata, Types::Hash
+      attribute :payment_method, Entity::PaymentMethod
+      attribute :confirmation, Entity::Confirmation
+      attribute :test, Types::Bool
     end
   end
 end
diff --git a/lib/yookassa/entity/payment_method.rb b/lib/yookassa/entity/payment_method.rb
index a7a93ea..47358cc 100644
--- a/lib/yookassa/entity/payment_method.rb
+++ b/lib/yookassa/entity/payment_method.rb
@@ -1,19 +1,16 @@
 # frozen_string_literal: true
 
+require_relative "./types"
 require_relative "./card"
 
 module Yookassa
   module Entity
-    class PaymentMethod
-      extend  Dry::Initializer
-      extend  Yookassa::Callable
-      include Yookassa::Optional
-
-      option :type, proc(&:to_s)
-      option :id, proc(&:to_s)
-      option :saved
-      option :card, Entity::Card, optional: true
-      option :title, proc(&:to_s), optional: true
+    class PaymentMethod < Dry::Struct
+      attribute :type, Types::String
+      attribute :id, Types::String
+      attribute :saved, Types::Bool
+      attribute? :card, Entity::Card
+      attribute? :title, Types::String
     end
   end
 end
diff --git a/lib/yookassa/entity/refund.rb b/lib/yookassa/entity/refund.rb
index a5da761..03613cb 100644
--- a/lib/yookassa/entity/refund.rb
+++ b/lib/yookassa/entity/refund.rb
@@ -1,15 +1,18 @@
 # frozen_string_literal: true
 
+require_relative "./types"
 require_relative "./amount"
 
 module Yookassa
   module Entity
-    class Refund < Yookassa::Response
-      option :payment_id
-      option :created_at, proc(&:to_s)
-      option :amount, Entity::Amount
-      option :receipt_registration, proc(&:to_s), optional: true
-      option :description, proc(&:to_s), optional: true
+    class Refund < Dry::Struct
+      attribute :id, Types::String
+      attribute :status, Types::String
+      attribute :payment_id, Types::String
+      attribute :created_at, Types::String
+      attribute :amount, Entity::Amount
+      attribute? :receipt_registration, Types::String
+      attribute :description, Types::String
     end
   end
 end
diff --git a/lib/yookassa/entity/types.rb b/lib/yookassa/entity/types.rb
new file mode 100644
index 0000000..4306115
--- /dev/null
+++ b/lib/yookassa/entity/types.rb
@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+module Yookassa
+  module Entity
+    module Types
+      include Dry.Types()
+    end
+  end
+end
diff --git a/lib/yookassa/error.rb b/lib/yookassa/error.rb
deleted file mode 100644
index e4d9974..0000000
--- a/lib/yookassa/error.rb
+++ /dev/null
@@ -1,30 +0,0 @@
-# frozen_string_literal: true
-
-module Yookassa
-  class Error
-    extend  Dry::Initializer
-    extend  Yookassa::Callable
-    include Yookassa::Optional
-
-    option :type, proc(&:to_s)
-    option :id, proc(&:to_s), optional: true
-    option :code, proc(&:to_s), optional: true
-    option :description, proc(&:to_s), optional: true
-    option :parameter, proc(&:to_s), optional: true
-
-    def error?
-      type == "error"
-    end
-
-    class << self
-      def build(*res)
-        body = res.last
-        new JSON.parse(body.first)
-      end
-
-      def new(opts)
-        super opts.transform_keys(&:to_sym)
-      end
-    end
-  end
-end
diff --git a/lib/yookassa/http_helpers.rb b/lib/yookassa/http_helpers.rb
index 94b1039..26e80d6 100644
--- a/lib/yookassa/http_helpers.rb
+++ b/lib/yookassa/http_helpers.rb
@@ -8,7 +8,7 @@ module Yookassa
       response = client.get("#{API_URL}#{endpoint}", params: query)
       body = JSON.parse(response.body.to_s, symbolize_names: true)
 
-      return Error.new(body) if response.status.client_error?
+      return Entity::Error.new(**body) if response.status.client_error?
 
       yield(body) if block_given?
     end
@@ -17,7 +17,7 @@ module Yookassa
       response = client.headers("Idempotence-Key" => idempotency_key).post("#{API_URL}#{endpoint}", json: payload)
       body = JSON.parse(response.body.to_s, symbolize_names: true)
 
-      return Error.new(body) if response.status.client_error?
+      return Entity::Error.new(**body) if response.status.client_error?
 
       yield(body) if block_given?
     end
diff --git a/lib/yookassa/optional.rb b/lib/yookassa/optional.rb
deleted file mode 100644
index 026c9eb..0000000
--- a/lib/yookassa/optional.rb
+++ /dev/null
@@ -1,23 +0,0 @@
-# frozen_string_literal: true
-
-module Yookassa
-  module Optional
-    private
-
-    def initialize(opts)
-      super opts.transform_keys(&:to_sym)
-    end
-
-    def __options__
-      @__options__ ||= self.class.dry_initializer.attributes(self)
-    end
-
-    def respond_to_missing?(name, *)
-      __options__.respond_to? name
-    end
-
-    def method_missing(*args, &block)
-      respond_to_missing?(*args) ? __options__.send(*args, &block) : super
-    end
-  end
-end
diff --git a/lib/yookassa/response.rb b/lib/yookassa/response.rb
deleted file mode 100644
index e6ddd84..0000000
--- a/lib/yookassa/response.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-# frozen_string_literal: true
-
-module Yookassa
-  class Response
-    extend Dry::Initializer
-    option :id, proc(&:to_s)
-    option :status, proc(&:to_s), default: proc {}
-  end
-end
diff --git a/spec/yookassa/payment_spec.rb b/spec/yookassa/payment_spec.rb
index 1ae3228..36c802e 100644
--- a/spec/yookassa/payment_spec.rb
+++ b/spec/yookassa/payment_spec.rb
@@ -10,7 +10,7 @@ RSpec.describe Yookassa::Payment do
 
   shared_examples "returns_payment_object" do
     it "returns success" do
-      expect(subject).to be_kind_of Yookassa::Response
+      expect(subject).to be_a Yookassa::Entity::Payment
       expect(subject.id).to eq "2490ded1-000f-5000-8000-1f64111bc63e"
       expect(subject.test).to eq true
       expect(subject.paid).to eq false
@@ -21,17 +21,17 @@ RSpec.describe Yookassa::Payment do
       expect(subject.expires_at).to eq nil
       expect(subject.metadata).to eq({})
 
-      expect(subject.amount).to be_kind_of Yookassa::Entity::Amount
+      expect(subject.amount).to be_a Yookassa::Entity::Amount
       expect(subject.amount.currency).to eq "RUB"
       expect(subject.amount.value).to eq 10.0
 
-      expect(subject.confirmation).to be_kind_of Yookassa::Entity::Confirmation
+      expect(subject.confirmation).to be_a Yookassa::Entity::Confirmation
       expect(subject.confirmation.confirmation_url).to eq "https://money.yookassa.ru/payments/external/confirmation?orderId=2490ded1-000f-5000-8000-1f64111bc63e"
       expect(subject.confirmation.type).to eq "redirect"
       expect(subject.confirmation.return_url).to eq "https://url.test"
       expect(subject.confirmation.enforce).to eq nil
 
-      expect(subject.payment_method).to be_kind_of Yookassa::Entity::PaymentMethod
+      expect(subject.payment_method).to be_a Yookassa::Entity::PaymentMethod
       expect(subject.payment_method.card).to eq nil
       expect(subject.payment_method.id).to eq "2490ded1-000f-5000-8000-1f64111bc63e"
       expect(subject.payment_method.saved).to eq false
diff --git a/spec/yookassa/refund_spec.rb b/spec/yookassa/refund_spec.rb
index 935a6db..526d3d9 100644
--- a/spec/yookassa/refund_spec.rb
+++ b/spec/yookassa/refund_spec.rb
@@ -10,7 +10,7 @@ RSpec.describe Yookassa::Refund do
 
   shared_examples "returns_refund_object" do
     it "returns success" do
-      expect(subject).to be_kind_of Yookassa::Response
+      expect(subject).to be_a Yookassa::Entity::Refund
       expect(subject.id).to eq "2491ab0c-0015-5000-9000-1640c7f1a6f0"
       expect(subject.payment_id).to eq "2491a6e2-000f-5000-9000-1480e820ae17"
       expect(subject.status).to eq "succeeded"
diff --git a/yookassa.gemspec b/yookassa.gemspec
index 403656f..d938ed0 100644
--- a/yookassa.gemspec
+++ b/yookassa.gemspec
@@ -22,6 +22,6 @@ Gem::Specification.new do |spec|
 
   spec.required_ruby_version = ">= 2.6"
 
-  spec.add_runtime_dependency "dry-initializer"
+  spec.add_runtime_dependency "dry-struct"
   spec.add_runtime_dependency "http", "~> 5.0.1"
 end