diff --git a/scripts/db/schemes/categories.js b/scripts/db/schemes/categories.js
new file mode 100644
index 0000000..4d655c9
--- /dev/null
+++ b/scripts/db/schemes/categories.js
@@ -0,0 +1,10 @@
+const Joi = require('joi')
+
+module.exports = {
+	id: Joi.string()
+		.regex(/^[a-z]+$/)
+		.required(),
+	name: Joi.string()
+		.regex(/^[A-Z]+$/i)
+		.required()
+}