diff --git a/.travis.yml b/.travis.yml
index afc33489..2a7e7b46 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,6 @@
 language: ruby
 rvm:
-  - 2.2.0
+  - 2.7.0
 before_install:
   - gem update bundler
 install: 
diff --git a/README.md b/README.md
index f097526f..d580dc96 100644
--- a/README.md
+++ b/README.md
@@ -757,6 +757,7 @@ To install this gem onto your local machine, run `bundle exec rake install`. To
 Bug reports and pull requests are welcome on GitHub at https://github.com/rspective/voucherify-ruby-sdk.
 
 ## Changelog
+- **2021-06-14** - `4.0.0` - Bumped required ruby version, bumped dependencies, added `Consents` API support, remove deprecated `URI.escape`.
 - **2020-03-09** - `3.0.0` - Bumped required ruby version, bumped dependencies, added `list` method in Customers module.
 - **2019-06-19** - `2.4.0` - Added support for custom API endpoint, that allows to connect to projects created in specific Voucherify region.
 - **2019-05-09** - `2.3.0` - Added `create_publication` method in Distributions module.
diff --git a/lib/voucherify.rb b/lib/voucherify.rb
index 1ad87ca5..621b9d7a 100644
--- a/lib/voucherify.rb
+++ b/lib/voucherify.rb
@@ -15,6 +15,7 @@
 require 'voucherify/service/validation_rules'
 require 'voucherify/service/validations'
 require 'voucherify/service/vouchers'
+require 'voucherify/service/consents'
 require 'voucherify/utils'
 
 module Voucherify
diff --git a/lib/voucherify/client.rb b/lib/voucherify/client.rb
index 94b43b50..94f4761e 100644
--- a/lib/voucherify/client.rb
+++ b/lib/voucherify/client.rb
@@ -76,6 +76,10 @@ def loyalties
       Voucherify::Service::Loyalties.new(self)
     end
 
+    def consents
+        Voucherify::Service::Consents.new(self)
+      end
+
     def get(path, params = {})
       begin
         url = @backend_url + path
diff --git a/lib/voucherify/service/consents.rb b/lib/voucherify/service/consents.rb
new file mode 100644
index 00000000..9d67b31f
--- /dev/null
+++ b/lib/voucherify/service/consents.rb
@@ -0,0 +1,17 @@
+require 'uri'
+
+module Voucherify
+  module Service
+    class Consents
+      attr_reader :client
+
+      def initialize(client)
+        @client = client
+      end
+
+      def get()
+        @client.get('/consents')
+      end
+    end
+  end
+end
diff --git a/lib/voucherify/service/customers.rb b/lib/voucherify/service/customers.rb
index b86e33ff..71cdab35 100644
--- a/lib/voucherify/service/customers.rb
+++ b/lib/voucherify/service/customers.rb
@@ -1,4 +1,4 @@
-require 'uri'
+require 'erb'
 
 module Voucherify
   module Service
@@ -28,6 +28,10 @@ def update(customer)
       def delete(customer_id)
         @client.delete("/customers/#{ERB::Util.url_encode(customer_id)}")
       end
+
+      def update_consents(customer_id, consents)
+        @client.put("/customers/#{ERB::Util.url_encode(customer_id)}/consents", consents.to_json)
+      end
     end
   end
 end
diff --git a/lib/voucherify/version.rb b/lib/voucherify/version.rb
index 20f864dc..5b133927 100644
--- a/lib/voucherify/version.rb
+++ b/lib/voucherify/version.rb
@@ -1,3 +1,3 @@
 module Voucherify
-  VERSION = '3.0.0'
+  VERSION = '4.0.0'
 end
diff --git a/spec/consents_spec.rb b/spec/consents_spec.rb
new file mode 100644
index 00000000..185de94a
--- /dev/null
+++ b/spec/consents_spec.rb
@@ -0,0 +1,31 @@
+require 'spec_helper'
+require 'rest-client'
+require 'date'
+
+describe 'Consents API' do
+
+  let(:application_id) { 'application_id' }
+  let(:client_secret_key) { 'client_secret_key' }
+
+  let(:voucherify) { Voucherify::Client.new({:applicationId => application_id, :clientSecretKey => client_secret_key}) }
+  let(:headers) { {
+      'X-App-Id' => application_id,
+      'X-App-Token' => client_secret_key,
+      'X-Voucherify-Channel' => 'Ruby-SDK',
+      :accept => 'application/json'
+  } }
+
+  let(:consents) { {
+      :groups => {},
+      :consents => {}
+  } }
+
+  it 'should get consents' do
+    stub_request(:get, "https://api.voucherify.io/v1/consents")
+        .with(headers: headers)
+        .to_return(:status => 200, :body => consents.to_json, :headers => {})
+
+    voucherify.consents.get()
+  end
+
+end
diff --git a/spec/customers_spec.rb b/spec/customers_spec.rb
index 74480a27..b58ba2b7 100644
--- a/spec/customers_spec.rb
+++ b/spec/customers_spec.rb
@@ -23,6 +23,11 @@
           :lang => 'en'
       }} }
 
+  let(:consents) { {
+      :groups => {},
+      :consents => {}
+  } }
+
   it 'should create customer' do
     stub_request(:post, 'https://api.voucherify.io/v1/customers')
         .with(body: customer.to_json, headers: headers)
@@ -52,4 +57,11 @@
 
     voucherify.customers.delete customer[:id]
   end
-end
\ No newline at end of file
+
+  it 'should update customer consents' do
+    stub_request(:put, "https://api.voucherify.io/v1/customers/#{customer[:id]}/consents")
+        .to_return(:status => 200, :body => customer.to_json, :headers => {})
+
+    voucherify.customers.update_consents(customer[:id], consents)
+  end
+end
diff --git a/voucherify.gemspec b/voucherify.gemspec
index fd4fb9e5..84aa92c6 100644
--- a/voucherify.gemspec
+++ b/voucherify.gemspec
@@ -18,11 +18,11 @@ Gem::Specification.new do |spec|
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ['lib']
 
-  spec.add_development_dependency 'rake', '~> 13.0.1'
-  spec.add_development_dependency 'rspec', '~> 3.0'
+  spec.add_development_dependency 'rake', '~> 13.0.3'
+  spec.add_development_dependency 'rspec', '~> 3.9.0'
   spec.add_development_dependency 'webmock', '~> 3.8.2'
 
-  spec.add_dependency 'rest-client', '~> 2.0'
+  spec.add_dependency 'rest-client', '~> 2.1.0'
 
   spec.required_ruby_version = '>= 2.2.0'
 end