diff --git a/.circleci/gemspecs/latest b/.circleci/gemspecs/latest
index 1ec77df..939c8d2 100644
--- a/.circleci/gemspecs/latest
+++ b/.circleci/gemspecs/latest
@@ -27,8 +27,8 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'rake', '~> 13.2', '>= 13.2.1'
   spec.add_development_dependency 'reek', '~> 6.3'
   spec.add_development_dependency 'rspec', '~> 3.13'
-  spec.add_development_dependency 'rubocop', '~> 1.63', '>= 1.63.5'
-  spec.add_development_dependency 'rubocop-performance', '~> 1.21'
-  spec.add_development_dependency 'rubocop-rspec', '~> 2.29', '>= 2.29.2'
+  spec.add_development_dependency 'rubocop', '~> 1.65'
+  spec.add_development_dependency 'rubocop-performance', '~> 1.21', '>= 1.21.1'
+  spec.add_development_dependency 'rubocop-rspec', '~> 3.0', '>= 3.0.3'
   spec.add_development_dependency 'simplecov', '~> 0.22.0'
 end
diff --git a/.circleci/linter_configs/.rubocop.yml b/.circleci/linter_configs/.rubocop.yml
index fec78fe..7c88679 100644
--- a/.circleci/linter_configs/.rubocop.yml
+++ b/.circleci/linter_configs/.rubocop.yml
@@ -91,6 +91,9 @@ Gemspec/RequireMFA:
 Gemspec/DevelopmentDependencies:
   Enabled: false
 
+Gemspec/AddRuntimeDependency:
+  Enabled: false
+
 # Performance -----------------------------------------------------------------
 
 Performance/MethodObjectAsBlock:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9069e9c..5588e8f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,13 @@
 
 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).
 
+## [1.4.3] - 2024-07-12
+
+### Updated
+
+- Updated gem development dependencies
+- Updated gem version
+
 ## [1.4.2] - 2024-05-19
 
 ### Updated
diff --git a/lib/smtp_mock/version.rb b/lib/smtp_mock/version.rb
index 708d95d..65ee5dd 100644
--- a/lib/smtp_mock/version.rb
+++ b/lib/smtp_mock/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module SmtpMock
-  VERSION = '1.4.2'
+  VERSION = '1.4.3'
 end