diff --git a/src/validators/expressValidator/customValidators.js b/src/validators/expressValidator/customValidators.js
index abd0ef6..31d6dc9 100644
--- a/src/validators/expressValidator/customValidators.js
+++ b/src/validators/expressValidator/customValidators.js
@@ -3,9 +3,11 @@ import { check } from 'express-validator'
 const varChar = (field, { max = 255 } = {}) => check(field).isString().trim().isLength({ min: 1, max }).withMessage(`|${field}| must be a string with a length between 1 and ${max}`)
 const integer = field => check(field).isInt({min: Number.MIN_SAFE_INTEGER, max: Number.MAX_SAFE_INTEGER}).withMessage(`|${field}| must be an integer`)
 const uuid = field => check(field).isUUID('all').withMessage(`|${field}| must be a valid UUID`)
+const bigInt = field => check(field).isBigInt().withMessage(`|${field}| must be a valid BigInt`)
 
 export {
 	integer,
 	uuid,
 	varChar,
-}
+	bigInt
+}
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