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-rw-r--r--db/migrate/20180831164909_add_index_for_identifier_to_prometheus_metric.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/db/migrate/20180831164909_add_index_for_identifier_to_prometheus_metric.rb b/db/migrate/20180831164909_add_index_for_identifier_to_prometheus_metric.rb
index b30c24ccafe..1f6cfc181f4 100644
--- a/db/migrate/20180831164909_add_index_for_identifier_to_prometheus_metric.rb
+++ b/db/migrate/20180831164909_add_index_for_identifier_to_prometheus_metric.rb
@@ -1,6 +1,6 @@
# frozen_string_literal: true
-class AddIndexForIdentifierToPrometheusMetric < ActiveRecord::Migration
+class AddIndexForIdentifierToPrometheusMetric < ActiveRecord::Migration[4.2]
include Gitlab::Database::MigrationHelpers
DOWNTIME = false