diff --git a/scripts/helpers/utils.js b/scripts/helpers/utils.js
index 7a2bae063..f0d9b3e50 100644
--- a/scripts/helpers/utils.js
+++ b/scripts/helpers/utils.js
@@ -1,4 +1,3 @@
-const escapeStringRegexp = require('escape-string-regexp')
 const transliteration = require('transliteration')
 const iso6393 = require('@freearhey/iso-639-3')
 const categories = require('./categories')
@@ -71,16 +70,6 @@ utils.sortBy = function (arr, fields) {
   })
 }
 
-utils.escapeStringRegexp = function (scring) {
-  return escapeStringRegexp(string)
-}
-
-utils.sleep = function (ms) {
-  return function (x) {
-    return new Promise(resolve => setTimeout(() => resolve(x), ms))
-  }
-}
-
 utils.removeProtocol = function (string) {
   return string.replace(/(^\w+:|^)\/\//, '')
 }