diff --git a/.circleci/config.yml b/.circleci/config.yml
index 2120dbc..4eec387 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -6,7 +6,7 @@ defaults: &defaults
     - image: cimg/ruby:<< parameters.ruby-version >>
 
 orbs:
-  ruby: circleci/ruby@1.4.0
+  ruby: circleci/ruby@1.7.1
 
 references:
   restore_bundle_cache: &restore_bundle_cache
@@ -122,7 +122,7 @@ jobs:
       - checkout
       - <<: *use_compatible_gemspec
       - ruby/install-deps:
-          bundler-version: "2.3.8"
+          bundler-version: "2.3.12"
           with-cache: false
           path: './vendor/custom_bundle'
       - <<: *install_system_dependencies
diff --git a/.circleci/gemspec_compatible b/.circleci/gemspec_compatible
index d915cc8..faffe0e 100644
--- a/.circleci/gemspec_compatible
+++ b/.circleci/gemspec_compatible
@@ -31,13 +31,12 @@ Gem::Specification.new do |spec|
 
   spec.add_runtime_dependency 'simpleidn', '~> 0.2.1'
 
-  spec.add_development_dependency 'dns_mock', '~> 1.5'
-  spec.add_development_dependency 'ffaker', '~> 2.20'
+  spec.add_development_dependency 'dns_mock', '~> 1.5', '>= 1.5.2'
+  spec.add_development_dependency 'ffaker', '~> 2.21'
   spec.add_development_dependency 'json_matchers', '~> 0.11.1'
-  spec.add_development_dependency 'pry-byebug', '~> 3.9'
   spec.add_development_dependency 'rake', '~> 13.0', '>= 13.0.6'
   spec.add_development_dependency 'rspec', '~> 3.11'
-  spec.add_development_dependency 'smtp_mock', '~> 1.0'
+  spec.add_development_dependency 'smtp_mock', '~> 1.0', '>= 1.0.1'
   spec.add_development_dependency 'truemail-rspec', '~> 0.9.1'
   spec.add_development_dependency 'webmock', '~> 3.14'
 end
diff --git a/.circleci/gemspec_latest b/.circleci/gemspec_latest
index d5862a0..ea47ebe 100644
--- a/.circleci/gemspec_latest
+++ b/.circleci/gemspec_latest
@@ -33,20 +33,20 @@ Gem::Specification.new do |spec|
   spec.add_runtime_dependency 'simpleidn', '~> 0.2.1'
 
   spec.add_development_dependency 'bundler-audit', '~> 0.9.0.1'
-  spec.add_development_dependency 'dns_mock', '~> 1.5', '>= 1.5.1'
-  spec.add_development_dependency 'fasterer', '~> 0.9.0'
-  spec.add_development_dependency 'ffaker', '~> 2.20'
+  spec.add_development_dependency 'dns_mock', '~> 1.5', '>= 1.5.2'
+  spec.add_development_dependency 'fasterer', '~> 0.10.0'
+  spec.add_development_dependency 'ffaker', '~> 2.21'
   spec.add_development_dependency 'json_matchers', '~> 0.11.1'
-  spec.add_development_dependency 'overcommit', '~> 0.58.0'
+  spec.add_development_dependency 'overcommit', '~> 0.59.0'
   spec.add_development_dependency 'pry-byebug', '~> 3.9'
   spec.add_development_dependency 'rake', '~> 13.0', '>= 13.0.6'
-  spec.add_development_dependency 'reek', '~> 6.1'
+  spec.add_development_dependency 'reek', '~> 6.1', '>= 6.1.1'
   spec.add_development_dependency 'rspec', '~> 3.11'
-  spec.add_development_dependency 'rubocop', '~> 1.25', '>= 1.25.1'
-  spec.add_development_dependency 'rubocop-performance', '~> 1.13', '>= 1.13.2'
-  spec.add_development_dependency 'rubocop-rspec', '~> 2.9'
+  spec.add_development_dependency 'rubocop', '~> 1.28', '>= 1.28.2'
+  spec.add_development_dependency 'rubocop-performance', '~> 1.13', '>= 1.13.3'
+  spec.add_development_dependency 'rubocop-rspec', '~> 2.10'
   spec.add_development_dependency 'simplecov', '~> 0.21.2'
-  spec.add_development_dependency 'smtp_mock', '~> 1.0'
+  spec.add_development_dependency 'smtp_mock', '~> 1.0', '>= 1.0.1'
   spec.add_development_dependency 'truemail-rspec', '~> 0.9.1'
   spec.add_development_dependency 'webmock', '~> 3.14'
 end
diff --git a/.codeclimate.yml b/.codeclimate.yml
index a8c9a6b..3fb3fd2 100644
--- a/.codeclimate.yml
+++ b/.codeclimate.yml
@@ -7,7 +7,7 @@ checks:
 plugins:
   rubocop:
     enabled: true
-    channel: rubocop-1-25
+    channel: rubocop-1-28
 
   reek:
     enabled: true
diff --git a/.github/DEVELOPMENT_ENVIRONMENT_GUIDE.md b/.github/DEVELOPMENT_ENVIRONMENT_GUIDE.md
index 5de9f80..676e43f 100644
--- a/.github/DEVELOPMENT_ENVIRONMENT_GUIDE.md
+++ b/.github/DEVELOPMENT_ENVIRONMENT_GUIDE.md
@@ -12,7 +12,7 @@ cd  truemail
 Configure latest Ruby environment:
 
 ```bash
-echo 'ruby-3.1.1' > .ruby-version
+echo 'ruby-3.1.2' > .ruby-version
 cp .circleci/gemspec_latest truemail.gemspec
 ```
 
diff --git a/.rubocop.yml b/.rubocop.yml
index 6542afd..d49b191 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -193,6 +193,18 @@ Style/FileWrite:
 Style/MapToHash:
   Enabled: true
 
+Style/FetchEnvVar:
+  Enabled: true
+
+Style/NestedFileDirname:
+  Enabled: true
+
+Style/ObjectThen:
+  Enabled: true
+
+Style/RedundantInitialize:
+  Enabled: true
+
 Layout/LineLength:
   Max: 140
 
@@ -368,6 +380,9 @@ Lint/RequireRelativeSelfPath:
 Lint/UselessRuby2Keywords:
   Enabled: true
 
+Lint/RefinementImportMethods:
+  Enabled: true
+
 Gemspec/DateAssignment:
   Enabled: true
 
@@ -380,6 +395,9 @@ Gemspec/RubyVersionGlobalsUsage:
 Security/IoMethods:
   Enabled: true
 
+Security/CompoundHash:
+  Enabled: true
+
 Performance/AncestorsInclude:
   Enabled: true
 
@@ -481,3 +499,12 @@ RSpec/FactoryBot/SyntaxMethods:
 
 RSpec/SubjectStub:
   Enabled: false
+
+RSpec/BeEq:
+  Enabled: true
+
+RSpec/BeNil:
+  Enabled: true
+
+RSpec/VerifiedDoubleReference:
+  Enabled: false
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3bd64a5..8e1b544 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,15 @@
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [2.7.2] - 2022.04.02
+
+### Updated
+
+- Updated gemspecs, circleci config
+- Updated rubocop/codeclimate configs
+- Updated git templates
+- Updated gem version
+
 ## [2.7.1] - 2022.03.02
 
 ### Updated
diff --git a/lib/truemail/version.rb b/lib/truemail/version.rb
index 8c9bf54..7825d04 100644
--- a/lib/truemail/version.rb
+++ b/lib/truemail/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module Truemail
-  VERSION = '2.7.1'
+  VERSION = '2.7.2'
 end
diff --git a/spec/truemail/configuration_spec.rb b/spec/truemail/configuration_spec.rb
index 9c67816..906739a 100644
--- a/spec/truemail/configuration_spec.rb
+++ b/spec/truemail/configuration_spec.rb
@@ -106,7 +106,7 @@
       expect(configuration_instance.default_validation_type).to eq(Truemail::Configuration::DEFAULT_VALIDATION_TYPE)
       expect(configuration_instance.validation_type_by_domain).to eq({})
       expect(configuration_instance.whitelisted_domains).to eq([])
-      expect(configuration_instance.whitelist_validation).to eq(false)
+      expect(configuration_instance.whitelist_validation).to be(false)
       expect(configuration_instance.blacklisted_domains).to eq([])
       expect(configuration_instance.blacklisted_mx_ip_addresses).to eq([])
       expect(configuration_instance.dns).to eq([])
@@ -131,7 +131,7 @@
         expect(configuration_instance.default_validation_type).to eq(Truemail::Configuration::DEFAULT_VALIDATION_TYPE)
         expect(configuration_instance.validation_type_by_domain).to eq({})
         expect(configuration_instance.whitelisted_domains).to eq([])
-        expect(configuration_instance.whitelist_validation).to eq(false)
+        expect(configuration_instance.whitelist_validation).to be(false)
         expect(configuration_instance.blacklisted_domains).to eq([])
         expect(configuration_instance.blacklisted_mx_ip_addresses).to eq([])
         expect(configuration_instance.dns).to eq([])
diff --git a/truemail.gemspec b/truemail.gemspec
index 24fa512..7474f70 100644
--- a/truemail.gemspec
+++ b/truemail.gemspec
@@ -32,12 +32,12 @@ Gem::Specification.new do |spec|
   spec.add_runtime_dependency 'net-smtp', '~> 0.3.1' if ::RUBY_VERSION >= '3.1.0'
   spec.add_runtime_dependency 'simpleidn', '~> 0.2.1'
 
-  spec.add_development_dependency 'dns_mock', '~> 1.5', '>= 1.5.1'
-  spec.add_development_dependency 'ffaker', '~> 2.20'
+  spec.add_development_dependency 'dns_mock', '~> 1.5', '>= 1.5.2'
+  spec.add_development_dependency 'ffaker', '~> 2.21'
   spec.add_development_dependency 'json_matchers', '~> 0.11.1'
   spec.add_development_dependency 'rake', '~> 13.0', '>= 13.0.6'
   spec.add_development_dependency 'rspec', '~> 3.11'
-  spec.add_development_dependency 'smtp_mock', '~> 1.0'
+  spec.add_development_dependency 'smtp_mock', '~> 1.0', '>= 1.0.1'
   spec.add_development_dependency 'truemail-rspec', '~> 0.9.1'
   spec.add_development_dependency 'webmock', '~> 3.14'
 end