diff --git a/build/add-list.js b/build/add-list.js
index ae763ae..65ee995 100644
--- a/build/add-list.js
+++ b/build/add-list.js
@@ -1,8 +1,8 @@
-const {join} = require('path')
+const path = require('path')
 const {pick} = require('lodash')
 const readCsv = require('./read-csv')
 
-const ADD_LIST_PATH = join(__dirname, '..', 'add-list.csv')
+const ADD_LIST_PATH = path.join(__dirname, '..', 'add-list.csv')
 
 async function loadAddList() {
   const rows = await readCsv(ADD_LIST_PATH)
diff --git a/build/communes.js b/build/communes.js
index 956a6a6..f53973c 100644
--- a/build/communes.js
+++ b/build/communes.js
@@ -6,7 +6,7 @@ const arrondissementsMunicipaux = require('@etalab/decoupage-administratif/data/
 
 function connectGraph(historiqueCommunes) {
   const byId = keyBy(historiqueCommunes, 'id')
-  historiqueCommunes.forEach(h => {
+  for (const h of historiqueCommunes) {
     if (h.successeur) {
       h.successeur = byId[h.successeur]
     }
@@ -22,7 +22,7 @@ function connectGraph(historiqueCommunes) {
     if (h.membres) {
       h.membres = h.membres.map(m => byId[m])
     }
-  })
+  }
 }
 
 connectGraph(historiqueCommunes)
diff --git a/build/extract-fimoct.js b/build/extract-fimoct.js
index 04bd33a..9f7d4b8 100644
--- a/build/extract-fimoct.js
+++ b/build/extract-fimoct.js
@@ -21,17 +21,15 @@ function eachLine(line, ignoreList, cb) {
   const borneInferieureRepetition = line.substr(107, 1).trim()
   const indicateurAdressage = line.substr(115, 1).trim()
 
-  if (!codePostal.match(/(\d{5})/)) return cb()
+  if (!/(\d{5})/.test(codePostal)) return cb()
   if (codeCommune.startsWith('B')) return cb() // On ignore les codes postaux de pays étrangers
   if (codeCommune === '06900') return cb() // On ignore Monaco
   if (codeCommune === '97123') return cb() // On ignore Saint-Barthelemy
   if (codeCommune === '97127') return cb() // On ignore Saint-Martin
 
   // On ignore tous les couples codeCommune/codePostal renseignés dans le fichier CSV ignore-list.csv
-  if (codeCommune in ignoreList) {
-    if (ignoreList[codeCommune].some(item => item.codePostal === codePostal)) {
-      return cb()
-    }
+  if (codeCommune in ignoreList && ignoreList[codeCommune].some(item => item.codePostal === codePostal)) {
+    return cb()
   }
 
   const result = {
diff --git a/build/ignore-list.js b/build/ignore-list.js
index 242af19..45beb6d 100644
--- a/build/ignore-list.js
+++ b/build/ignore-list.js
@@ -1,8 +1,8 @@
-const {join} = require('path')
+const path = require('path')
 const {groupBy} = require('lodash')
 const readCsv = require('./read-csv')
 
-const IGNORE_LIST_PATH = join(__dirname, '..', 'ignore-list.csv')
+const IGNORE_LIST_PATH = path.join(__dirname, '..', 'ignore-list.csv')
 
 async function loadIgnoreList() {
   const rows = await readCsv(IGNORE_LIST_PATH)
diff --git a/build/index.js b/build/index.js
index d594a04..f429dc0 100644
--- a/build/index.js
+++ b/build/index.js
@@ -1,6 +1,6 @@
-/* eslint unicorn/no-process-exit: off */
+#!/usr/bin/env node
 const fs = require('fs')
-const {join} = require('path')
+const path = require('path')
 const {promisify} = require('util')
 const {chain, pick} = require('lodash')
 const {getLatestFIMOCTFileBuffer} = require('./download-fimoct')
@@ -57,10 +57,10 @@ function expandWithDefault(codesPostaux) {
 async function main() {
   const buffer = await getLatestFIMOCTFileBuffer()
   const codesPostaux = expandWithDefault(await extractFromFIMOCT(buffer))
-  codesPostaux.forEach(item => expandWithCommune(item))
-  await writeAsJSONFile(join(__dirname, '..', 'codes-postaux-full.json'), codesPostaux)
+  for (const item of codesPostaux) expandWithCommune(item)
+  await writeAsJSONFile(path.join(__dirname, '..', 'codes-postaux-full.json'), codesPostaux)
   const codesPostauxCompact = buildCompact(codesPostaux)
-  await writeAsJSONFile(join(__dirname, '..', 'codes-postaux.json'), codesPostauxCompact)
+  await writeAsJSONFile(path.join(__dirname, '..', 'codes-postaux.json'), codesPostauxCompact)
 }
 
 main().catch(error => {
diff --git a/full.js b/full.js
index 92c4a2c..457c6b8 100644
--- a/full.js
+++ b/full.js
@@ -70,11 +70,9 @@ function findCodePostal(codeCommune, idVoie, numero, repetition) {
     const entries = voiesIndex[idVoieMatch]
     if (entries.length === 1) return formatResult(entries[0])
     const parsedNumero = Number.parseInt(numero, 10)
-    const candidate = entries.find(entry => {
-      return pariteOK(parsedNumero, entry.codeParite) &&
-        superieurBorneInf(parsedNumero, repetition, entry.borneInferieure) &&
-        inferieurBorneSup(parsedNumero, repetition, entry.borneSuperieure)
-    })
+    const candidate = entries.find(entry => pariteOK(parsedNumero, entry.codeParite)
+        && superieurBorneInf(parsedNumero, repetition, entry.borneInferieure)
+        && inferieurBorneSup(parsedNumero, repetition, entry.borneSuperieure))
     if (candidate) return formatResult(candidate)
   }
 
diff --git a/index.js b/index.js
index a6c340e..dbb7fde 100644
--- a/index.js
+++ b/index.js
@@ -1,12 +1,12 @@
 const index = {}
 
-require('./codes-postaux.json').forEach(entry => {
+for (const entry of require('./codes-postaux.json')) {
   if (!(entry.codePostal in index)) {
     index[entry.codePostal] = []
   }
 
   index[entry.codePostal].push(entry)
-})
+}
 
 exports.find = function (postalCode) {
   return index[postalCode] || []
diff --git a/package.json b/package.json
index 1940c27..33a840a 100644
--- a/package.json
+++ b/package.json
@@ -47,7 +47,8 @@
       "comma-dangle": ["error", "never"],
       "unicorn/prefer-module": "off",
       "unicorn/prefer-string-slice": "off",
-      "import/extensions": "off"
+      "import/extensions": "off",
+      "node/prefer-global/process": "off"
 
     }
   },
diff --git a/test/basic.js b/test/basic.js
index c9cbba9..b06ccb0 100644
--- a/test/basic.js
+++ b/test/basic.js
@@ -2,7 +2,7 @@ const test = require('ava')
 const codesPostaux = require('..')
 
 test('75002', t => {
-  const communes = codesPostaux.find(75002)
+  const communes = codesPostaux.find(75_002)
   t.is(communes.length, 1)
   const [commune] = communes
   t.is(commune.codePostal, '75002')