diff --git a/.sync.yml b/.sync.yml
index e59781f..6e3c7ae 100644
--- a/.sync.yml
+++ b/.sync.yml
@@ -39,10 +39,6 @@ Gemfile:
       - gem: beaker-puppet
         from_env: BEAKER_PUPPET_VERSION
         version: '~> 1.22'
-      - gem: github_changelog_generator
-        version: '= 1.16.4'
-      - gem: concurrent-ruby
-        version: '= 1.1.10'
       - gem: async
         version: '~> 1'
       - gem: beaker-module_install_helper
diff --git a/Gemfile b/Gemfile
index e5d4603..02ca247 100644
--- a/Gemfile
+++ b/Gemfile
@@ -40,8 +40,6 @@ group :development do
   gem "beaker-hostgenerator"
   gem "beaker-rspec"
   gem "beaker-puppet", *location_for(ENV['BEAKER_PUPPET_VERSION'] || '~> 1.22')
-  gem "github_changelog_generator", '= 1.16.4',                                 require: false
-  gem "concurrent-ruby", '= 1.1.10',                                            require: false
   gem "async", '~> 1',                                                          require: false
   gem "beaker-module_install_helper",                                           require: false
   gem "beaker-puppet_install_helper",                                           require: false