diff --git a/.sync.yml b/.sync.yml
index 5dfa4f84..c1a8d74e 100644
--- a/.sync.yml
+++ b/.sync.yml
@@ -6,10 +6,6 @@ appveyor.yml:
 
 Gemfile:
   use_litmus: true
-  optional:
-    ":development":
-    - gem: github_changelog_generator
-      version: '= 1.15.2'
 NOTICE:
   copyright_holders:
   - name: Puppet, Inc.
diff --git a/Gemfile b/Gemfile
index 91a389e8..add18735 100644
--- a/Gemfile
+++ b/Gemfile
@@ -35,7 +35,6 @@ group :development do
   gem "rubocop-performance", '= 1.16.0',         require: false
   gem "rubocop-rspec", '= 2.19.0',               require: false
   gem "rb-readline", '= 0.5.5',                  require: false, platforms: [:mswin, :mingw, :x64_mingw]
-  gem "github_changelog_generator", '= 1.15.2',  require: false
 end
 group :system_tests do
   gem "puppet_litmus", '~> 1.0', require: false, platforms: [:ruby, :x64_mingw]