diff --git a/db/migrate/20241009160105_alter_customer_id_to_bigint.rb b/db/migrate/20241009160105_alter_customer_id_to_bigint.rb
new file mode 100644
index 0000000..297222e
--- /dev/null
+++ b/db/migrate/20241009160105_alter_customer_id_to_bigint.rb
@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+class AlterCustomerIdToBigint < ActiveRecord::Migration[7.1]
+  def up
+    change_column :discourse_subscriptions_subscriptions, :customer_id, :bigint
+  end
+
+  def down
+    raise ActiveRecord::IrreversibleMigration
+  end
+end