diff --git a/app/serializers/pipeline_serializer.rb b/app/serializers/pipeline_serializer.rb
index 0af9ef0e3f7d4372233cfa29e11961967c350fb3..e7a9df8ac4ee8d60ac944e992866a4b307246856 100644
--- a/app/serializers/pipeline_serializer.rb
+++ b/app/serializers/pipeline_serializer.rb
@@ -13,7 +13,7 @@ class PipelineSerializer < BaseSerializer
 
   def represent(resource, opts = {})
     if resource.is_a?(ActiveRecord::Relation)
-      resource = resource.includes([
+      resource = resource.preload([
         :retryable_builds,
         :cancelable_statuses,
         :trigger_requests,