2 files changed, 5 insertions, 1 deletions
diff --git a/.sync.yml b/.sync.yml
index 0383b33..a7844a7 100644
--- a/.sync.yml
+++ b/.sync.yml
@@ -29,6 +29,9 @@ Gemfile:
         from_env: BEAKER_PUPPET_VERSION
         version: '~> 1.22'
       - gem: github_changelog_generator
+        version: '= 1.16.4'
+      - gem: concurrent-ruby
+        version: '= 1.1.10'
       # We can unpin async when we move to Ruby 3
       - gem: async
         version: '~> 1'
diff --git a/Gemfile b/Gemfile
index b1261c6..6a6c641 100644
--- a/Gemfile
+++ b/Gemfile
@@ -40,7 +40,8 @@ group :development do
   gem "beaker-hostgenerator"
   gem "beaker-rspec"
   gem "beaker-puppet", *location_for(ENV['BEAKER_PUPPET_VERSION'] || '~> 1.22')
-  gem "github_changelog_generator",                                             require: false
+  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