diff --git a/migrations/1720815210066_json-item-mapping.ts b/migrations/1720815210066_json-item-mapping.ts
new file mode 100644
index 00000000..73b5e3a8
--- /dev/null
+++ b/migrations/1720815210066_json-item-mapping.ts
@@ -0,0 +1,17 @@
+/* eslint-disable @typescript-eslint/naming-convention */
+import { MigrationBuilder } from 'node-pg-migrate'
+import { Item } from '../src/Item'
+
+const column = 'mappings'
+
+export async function up(pgm: MigrationBuilder): Promise<void> {
+  pgm.alterColumn(Item.tableName, column, {
+    type: 'json',
+  })
+}
+
+export async function down(pgm: MigrationBuilder): Promise<void> {
+  pgm.alterColumn(Item.tableName, column, {
+    type: 'jsonb',
+  })
+}