diff --git a/domains.json b/domains.json
index 9c5d186..df015eb 100644
--- a/domains.json
+++ b/domains.json
@@ -78,6 +78,7 @@
   "6mail.cf",
   "6paq.com",
   "74.ru",
+  "74gmail.com",
   "7mail.ga",
   "7mail.ml",
   "88.am",
@@ -522,8 +523,8 @@
   "cia.hu",
   "ciaoweb.it",
   "cicciociccio.com",
-  "cincinow.net",
   "cinci.rr.com",
+  "cincinow.net",
   "citiz.net",
   "citlink.net",
   "citromail.hu",
@@ -1785,7 +1786,6 @@
   "magicmail.co.za",
   "magspam.net",
   "mahmoodweb.com",
-  "mail.bg",
   "mail-awu.de",
   "mail-box.cz",
   "mail-center.com",
@@ -1798,6 +1798,7 @@
   "mail.austria.com",
   "mail.az",
   "mail.be",
+  "mail.bg",
   "mail.bulgaria.com",
   "mail.by",
   "mail.co.za",
@@ -3298,8 +3299,8 @@
   "mttestdriver.com",
   "muehlacker.tk",
   "muell.icu",
-  "muellmail.com",
   "muellemail.com",
+  "muellmail.com",
   "mundomail.net",
   "munich.com",
   "music.com",
@@ -3640,6 +3641,7 @@
   "plus.com",
   "plus.google.com",
   "plusmail.com.br",
+  "pm.me",
   "pmail.net",
   "pobox.hu",
   "pobox.sk",
@@ -3706,6 +3708,8 @@
   "promessage.com",
   "prontomail.com",
   "protestant.com",
+  "proton.me",
+  "protonmail.ch",
   "protonmail.com",
   "prydirect.info",
   "psv-supporter.com",
@@ -4002,12 +4006,12 @@
   "spacewar.com",
   "spainmail.com",
   "spam.2012-2016.ru",
+  "spam.care",
   "spamavert.com",
   "spambob.com",
   "spambob.org",
   "spambog.net",
   "spambooger.com",
-  "spam.care",
   "spamcero.com",
   "spamdecoy.net",
   "spameater.com",
@@ -4368,8 +4372,8 @@
   "ukmax.com",
   "ukr.net",
   "uku.co.uk",
-  "ultra.fyi",
   "ultapulta.com",
+  "ultra.fyi",
   "ultrapostman.com",
   "ummah.org",
   "umpire.com",
@@ -4755,4 +4759,4 @@
   "zzom.co.uk",
   "zzz.com",
   "zzz.pl"
-]
+]
\ No newline at end of file
diff --git a/package.json b/package.json
index e367d7c..c141ae4 100644
--- a/package.json
+++ b/package.json
@@ -48,10 +48,6 @@
     "hubspot",
     "mail"
   ],
-  "dependencies": {
-    "got": "~13.0.0",
-    "json-future": "~2.2.13"
-  },
   "devDependencies": {
     "@commitlint/cli": "latest",
     "@commitlint/config-conventional": "latest",
@@ -70,7 +66,7 @@
     "standard-version": "latest"
   },
   "engines": {
-    "node": ">= 6"
+    "node": ">= 18"
   },
   "files": [
     "domains.js",
diff --git a/scripts/postinstall.mjs b/scripts/postinstall.mjs
index 6d2bd3a..c224373 100755
--- a/scripts/postinstall.mjs
+++ b/scripts/postinstall.mjs
@@ -1,20 +1,23 @@
-import jsonFuture from 'json-future'
-import got from 'got'
+import { writeFile } from 'node:fs/promises'
 
 /* List of free email domains by HubSpot
    https://knowledge.hubspot.com/forms/what-domains-are-blocked-when-using-the-forms-email-domains-to-block-feature */
 const URL =
   'https://f.hubspotusercontent40.net/hubfs/2832391/Marketing/Lead-Capture/free-domains-2.csv'
 
+/** Additional domains not present in the URL */
+const DOMAINS = ['pm.me', 'proton.me', 'protonmail.ch']
+
 const trim = text => text.replace(/^\s+|\s+$/g, '')
 
-const save = async body => {
-  const result = body.split(/[,\n]/g).map(trim).filter(Boolean)
-  await jsonFuture.saveAsync('domains.json', result)
-}
+const sanetize = text => text.split(/[,\n]/g).map(trim).filter(Boolean)
 
 try {
-  await save(await got(URL).text())
+  const raw = await fetch(URL).then(res => res.text())
+  const domains = new Set(sanetize(raw))
+  for (const domain of DOMAINS) domains.add(domain)
+  const sorted = Array.from(domains).sort()
+  await writeFile('domains.json', JSON.stringify(sorted, null, 2))
 } catch (error) {
   console.error(error)
   process.exit(1)