diff --git a/lib/BankLetter.js b/lib/BankLetter.js
index 8a7bae6..1a98282 100644
--- a/lib/BankLetter.js
+++ b/lib/BankLetter.js
@@ -5,7 +5,6 @@ const fs = require('fs');
 const handlebars = require('handlebars');
 const Crypto = require('./crypto/Crypto');
 const { date } = require('./utils.js');
-// const BN = require('bn.js');
 
 const registerHelpers = () => {
 	handlebars.registerHelper('today', () => date.toISODate(Date.now(), false));