diff --git a/migrations/20180430205325_update_supplier_categories_enum.js b/migrations/20180430205325_update_supplier_categories_enum.js
new file mode 100644
index 000000000..c473aeca5
--- /dev/null
+++ b/migrations/20180430205325_update_supplier_categories_enum.js
@@ -0,0 +1,25 @@
+var constants = require('../models/constants.js');
+
+exports.up = function(knex, Promise) {
+    // Schema + data migration for supplier categories enum
+    // Remap: "carriage" -> "moving", everything else -> "other"
+
+    return Promise.all([
+        knex('suppliers').whereNotIn('supplier_category', ['carriage', 'moving']).update({'supplier_category': 'other'}),
+
+        knex.schema.alterTable(constants.SUPPLIERS_TABLE_NAME, table => {
+            table.enu('supplier_category', ['moving', 'other', 'carriage']).alter();
+            // Temporarily add 'carriage' category for data migration
+        }),
+
+        knex('suppliers').where('supplier_category', '=', 'carriage').update({supplier_category: 'moving'}),
+
+        knex.schema.alterTable(constants.SUPPLIERS_TABLE_NAME, table => {
+            table.enu('supplier_category', ['moving', 'other']).alter();
+        }),
+    ]);
+};
+
+exports.down = function(knex, Promise) {
+
+};