diff --git a/.github/actions/sync/shared-config.rb b/.github/actions/sync/shared-config.rb
index 39acac28..fd2d7fcb 100755
--- a/.github/actions/sync/shared-config.rb
+++ b/.github/actions/sync/shared-config.rb
@@ -180,8 +180,10 @@ def git(*args)
 # We don't have Homebrew exclude? method here.
 if !custom_ruby_version_repos.include?(repository_name) && (target_directory_path/"Gemfile.lock").exist?
   Dir.chdir target_directory_path do
+    require "bundler"
+    bundler_version = Bundler.definition.locked_gems.bundler_version
     puts "Running bundle install..."
-    system "bundle update --ruby --bundler --quiet >/dev/null"
+    system "bundle", "update", "--ruby", "--bundler=#{bundler_version}", "--quiet", out: "/dev/null"
   end
 end
 # rubocop:enable Homebrew/NegateInclude