diff --git a/lib/rspec_flaky/report.rb b/lib/rspec_flaky/report.rb
index 393ba3ae9f7..73f30362cfe 100644
--- a/lib/rspec_flaky/report.rb
+++ b/lib/rspec_flaky/report.rb
@@ -40,7 +40,7 @@ module RspecFlaky
       report_path_dir = File.dirname(file_path)
       FileUtils.mkdir_p(report_path_dir) unless Dir.exist?(report_path_dir)
 
-      File.write(file_path, Gitlab::Json.pretty_generate(flaky_examples.to_h))
+      File.write(file_path, JSON.pretty_generate(flaky_examples.to_h))
     end
 
     def prune_outdated(days: OUTDATED_DAYS_THRESHOLD)