diff --git a/db/migrate/20200107125721_migrate_zip_pack_column.rb b/db/migrate/20200107125721_migrate_zip_pack_column.rb
new file mode 100644
index 000000000..6beeb11d2
--- /dev/null
+++ b/db/migrate/20200107125721_migrate_zip_pack_column.rb
@@ -0,0 +1,5 @@
+class MigrateZipPackColumn < ActiveRecord::Migration[5.2]
+  def change
+    change_column :zip_packs, :pack_size, :float
+  end
+end