diff --git a/db/migrate/20220303170429_change_local_id_to_string.rb b/db/migrate/20220303170429_change_local_id_to_string.rb
new file mode 100644
index 0000000..d6f6c99
--- /dev/null
+++ b/db/migrate/20220303170429_change_local_id_to_string.rb
@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+class ChangeLocalIdToString < ActiveRecord::Migration[6.1]
+  def change
+    change_column :arduinos, :local_id, :string
+  end
+end