diff --git a/.travis.yml b/.travis.yml
index 4ac3c53..a9e092b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,5 +6,6 @@ gemfile:
   - gemfiles/rails_42.gemfile
   - gemfiles/rails_50.gemfile
   - gemfiles/rails_51.gemfile
+  - gemfiles/rails_52.gemfile
 notifications:
   email: false
diff --git a/Appraisals b/Appraisals
index 2a17e94..6b2670d 100644
--- a/Appraisals
+++ b/Appraisals
@@ -1,3 +1,8 @@
+appraise 'rails-52' do
+  gem 'actionpack', '~> 5.2.0.beta2'
+  gem 'railties', '~> 5.2.0.beta2'
+end
+
 appraise 'rails-51' do
   gem 'actionpack', '~> 5.1'
   gem 'railties', '~> 5.1'
diff --git a/gemfiles/rails_42.gemfile b/gemfiles/rails_42.gemfile
index 8f81710..c37751a 100644
--- a/gemfiles/rails_42.gemfile
+++ b/gemfiles/rails_42.gemfile
@@ -14,7 +14,7 @@ group :development do
   gem "rspec", "~> 3.5.0"
   gem "rspec-its", "~> 1.1.0"
   gem "rspec-rails", "~> 3.5.0"
-  gem "rubocop", "~> 0.51.0"
+  gem "rubocop", "~> 0.52.1"
   gem "coveralls", "~> 0.8.2", require: false
 end
 
diff --git a/gemfiles/rails_50.gemfile b/gemfiles/rails_50.gemfile
index a929f66..3e30385 100644
--- a/gemfiles/rails_50.gemfile
+++ b/gemfiles/rails_50.gemfile
@@ -14,7 +14,7 @@ group :development do
   gem "rspec", "~> 3.5.0"
   gem "rspec-its", "~> 1.1.0"
   gem "rspec-rails", "~> 3.5.0"
-  gem "rubocop", "~> 0.51.0"
+  gem "rubocop", "~> 0.52.1"
   gem "coveralls", "~> 0.8.2", require: false
 end
 
diff --git a/gemfiles/rails_51.gemfile b/gemfiles/rails_51.gemfile
index 9b4e1ad..cfd2f47 100644
--- a/gemfiles/rails_51.gemfile
+++ b/gemfiles/rails_51.gemfile
@@ -14,7 +14,7 @@ group :development do
   gem "rspec", "~> 3.5.0"
   gem "rspec-its", "~> 1.1.0"
   gem "rspec-rails", "~> 3.5.0"
-  gem "rubocop", "~> 0.51.0"
+  gem "rubocop", "~> 0.52.1"
   gem "coveralls", "~> 0.8.2", require: false
 end
 
diff --git a/gemfiles/rails_52.gemfile b/gemfiles/rails_52.gemfile
new file mode 100644
index 0000000..c65533e
--- /dev/null
+++ b/gemfiles/rails_52.gemfile
@@ -0,0 +1,21 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "actionpack", "~> 5.2.0.beta2"
+gem "railties", "~> 5.2.0.beta2"
+
+group :development do
+  gem "appraisal", "~> 2.2"
+  gem "pry", "~> 0.10.1"
+  gem "pry-byebug", "~> 3.2.0"
+  gem "sdoc", "~> 0.4.1"
+  gem "telegram-bot-types", "~> 0.3.0"
+  gem "rspec", "~> 3.5.0"
+  gem "rspec-its", "~> 1.1.0"
+  gem "rspec-rails", "~> 3.5.0"
+  gem "rubocop", "~> 0.52.1"
+  gem "coveralls", "~> 0.8.2", require: false
+end
+
+gemspec path: "../"
diff --git a/lib/telegram/bot/config_methods.rb b/lib/telegram/bot/config_methods.rb
index be4ef2e..459534b 100644
--- a/lib/telegram/bot/config_methods.rb
+++ b/lib/telegram/bot/config_methods.rb
@@ -53,7 +53,8 @@ module Telegram
       def bots_config
         @bots_config ||=
           if defined?(Rails.application)
-            secrets = Rails.application.secrets.
+            app = Rails.application
+            secrets = (app.respond_to?(:credentials) ? app.credentials : app.secrets).
               fetch(:telegram, {}).with_indifferent_access
             secrets.fetch(:bots, {}).symbolize_keys.tap do |config|
               default = secrets[:bot]
diff --git a/spec/integration_helper.rb b/spec/integration_helper.rb
index 908eb0c..b78bc13 100644
--- a/spec/integration_helper.rb
+++ b/spec/integration_helper.rb
@@ -15,14 +15,21 @@ class TestApplication < Rails::Application
   config.eager_load = false
   config.log_level = :debug
   config.action_dispatch.show_exceptions = false
-  secrets[:secret_key_base] = 'test'
-  secrets[:telegram] = {
+
+  telegram_config = {
     bot: 'default_token',
     bots: {
       other: {token: 'other_token'},
       named: {token: 'named_token', username: 'TestBot'},
     },
   }
+
+  if Rails.application.respond_to?(:credentials)
+    Rails.application.credentials.config[:telegram] = telegram_config
+  else
+    secrets[:secret_key_base] = 'test'
+    secrets[:telegram] = telegram_config
+  end
 end
 Rails.application.initialize!