diff --git a/db/fixtures/development/10_merge_requests.rb b/db/fixtures/development/10_merge_requests.rb
index 8bdc7c6556ca6481d92dd70ee148d513cb2a7059..2051bcff8f089a035e9917914d69fa5adef05197 100644
--- a/db/fixtures/development/10_merge_requests.rb
+++ b/db/fixtures/development/10_merge_requests.rb
@@ -27,6 +27,9 @@ Gitlab::Seeder.quiet do
 
       Sidekiq::Worker.skipping_transaction_check do
         MergeRequests::CreateService.new(project, developer, params).execute
+      rescue Repository::AmbiguousRefError
+        # Ignore pipelines creation errors for now, we can doing that after
+        # https://gitlab.com/gitlab-org/gitlab-ce/issues/55966. will be resolved.
       end
       print '.'
     end