diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index babd56d..e07183a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,6 +17,7 @@ on:
 
 jobs:
   test:
-    uses: fastify/workflows/.github/workflows/plugins-ci.yml@v3
+    uses: fastify/workflows/.github/workflows/plugins-ci.yml@v4.2.0
     with:
       license-check: true
+      node-versions: '["16", "18", "20"]'
diff --git a/.github/workflows/package-manager-ci.yml b/.github/workflows/package-manager-ci.yml
index 89d450f..113aad3 100644
--- a/.github/workflows/package-manager-ci.yml
+++ b/.github/workflows/package-manager-ci.yml
@@ -17,4 +17,4 @@ on:
 
 jobs:
   test:
-    uses: fastify/workflows/.github/workflows/plugins-ci-package-manager.yml@v3
+    uses: fastify/workflows/.github/workflows/plugins-ci-package-manager.yml@v4.1.0
diff --git a/.taprc b/.taprc
index d51127c..343ddd5 100644
--- a/.taprc
+++ b/.taprc
@@ -1 +1,3 @@
-check-coverage: false
+disable-coverage: true
+files:
+  - test/**/*.test.js
diff --git a/lib/utils.js b/lib/utils.js
index 9f5a14a..173b9fd 100644
--- a/lib/utils.js
+++ b/lib/utils.js
@@ -4,7 +4,7 @@ const { HEX } = require('./scopedChars')
 
 function normalizeIPv4 (host) {
   if (findToken(host, '.') < 3) { return { host, isIPV4: false } }
-  const matches = host.match(/^(\b[01]?\d{1,2}|\b2[0-4]\d|\b25[0-5])(\.([01]?\d{1,2}|2[0-4]\d|25[0-5])){3}$/u) || []
+  const matches = host.match(/^(?:(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]|[0-9])\.){3}(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]|[0-9])$/u) || []
   const [address] = matches
   if (address) {
     return { host: stripLeadingZeros(address, '.'), isIPV4: true }
diff --git a/package.json b/package.json
index 44e13df..56877ed 100644
--- a/package.json
+++ b/package.json
@@ -17,20 +17,21 @@
   "homepage": "https://github.com/fastify/fast-uri",
   "scripts": {
     "bench": "node benchmark.js",
+    "lint": "standard | snazzy",
     "lint:fix": "standard --fix",
-    "test:lint": "standard | snazzy",
-    "test:typescript": "tsd",
-    "test:unit": "tap -J test/*.test.js",
-    "test:unit:dev": "tap -J test/*.test.js --coverage-report=html",
-    "test": "npm run test:lint && npm run test:unit && npm run test:typescript",
-    "test:ci": "npm run test:lint && npm run test:unit -- --cov --coverage-report=lcovonly && npm run test:typescript"
+    "test": "npm run lint && npm run test:unit && npm run test:typescript",
+    "test:ci": "npm run lint && npm run test:unit -- --coverage-report=lcovonly && npm run test:typescript",
+    "test:unit": "tap",
+    "test:unit:dev": "npm run test:unit -- --coverage-report=html",
+    "test:typescript": "tsd"
   },
   "devDependencies": {
+    "@fastify/pre-commit": "^2.1.0",
     "benchmark": "^2.1.4",
     "coveralls": "^3.1.1",
     "snazzy": "^9.0.0",
-    "standard": "^17.0.0",
-    "tap": "^16.0.0",
+    "standard": "^17.1.0",
+    "tap": "^18.7.2",
     "tsd": "^0.31.0",
     "uri-js": "^4.4.1"
   }
diff --git a/test/compatibility.test.js b/test/compatibility.test.js
index 5c5edc4..7da9e62 100644
--- a/test/compatibility.test.js
+++ b/test/compatibility.test.js
@@ -11,7 +11,7 @@ test('compatibility Parse', (t) => {
     'https://fastify.org',
     '/definitions/Record%3Cstring%2CPerson%3E',
     '//10.10.10.10',
-    '//10.10.000.10',
+    // '//10.10.000.10', <-- not a valid URI per URI spec: https://datatracker.ietf.org/doc/html/rfc5954#section-4.1
     '//[2001:db8::7%en0]',
     '//[2001:dbZ::1]:80',
     '//[2001:db8::1]:80',
diff --git a/test/parse.test.js b/test/parse.test.js
index 2fe2133..fe7c44e 100644
--- a/test/parse.test.js
+++ b/test/parse.test.js
@@ -174,12 +174,21 @@ test('URI parse', (t) => {
   t.equal(components.query, undefined, 'query')
   t.equal(components.fragment, undefined, 'fragment')
 
-  // IPv4address with unformated 0
-  components = URI.parse('//10.10.000.10')
+  // IPv4address with unformated 0 stay as-is
+  components = URI.parse('//10.10.000.10') // not valid as per https://datatracker.ietf.org/doc/html/rfc5954#section-4.1
   t.equal(components.error, undefined, 'IPv4address errors')
   t.equal(components.scheme, undefined, 'scheme')
   t.equal(components.userinfo, undefined, 'userinfo')
-  t.equal(components.host, '10.10.0.10', 'host')
+  t.equal(components.host, '10.10.000.10', 'host')
+  t.equal(components.port, undefined, 'port')
+  t.equal(components.path, '', 'path')
+  t.equal(components.query, undefined, 'query')
+  t.equal(components.fragment, undefined, 'fragment')
+  components = URI.parse('//01.01.01.01') // not valid in URIs: https://datatracker.ietf.org/doc/html/rfc3986#section-7.4
+  t.equal(components.error, undefined, 'IPv4address errors')
+  t.equal(components.scheme, undefined, 'scheme')
+  t.equal(components.userinfo, undefined, 'userinfo')
+  t.equal(components.host, '01.01.01.01', 'host')
   t.equal(components.port, undefined, 'port')
   t.equal(components.path, '', 'path')
   t.equal(components.query, undefined, 'query')