diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index baa6d2b..d891a1a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,7 +16,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [10, 12, 14, 16]
+        node-version: [14, 16, 18]
         os: [macos-latest, ubuntu-latest, windows-latest]
 
     steps:
diff --git a/index.js b/index.js
index acb1ad5..7921d9d 100644
--- a/index.js
+++ b/index.js
@@ -252,7 +252,7 @@ function now () {
 }
 
 module.exports = fp(underPressure, {
-  fastify: '3.x',
+  fastify: '4.x',
   name: 'under-pressure'
 })
 
diff --git a/package.json b/package.json
index 507ec3a..4e83085 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
   },
   "devDependencies": {
     "@types/node": "^17.0.7",
-    "fastify": "^3.0.0",
+    "fastify": "^4.0.0-rc.2",
     "pre-commit": "^1.2.2",
     "semver": "^7.3.2",
     "simple-get": "^4.0.0",
@@ -40,8 +40,5 @@
     "tap": "^16.2.0",
     "tsd": "^0.20.0",
     "typescript": "^4.0.3"
-  },
-  "engines": {
-    "node": ">=10"
   }
 }
diff --git a/test/pressurehandler.test.js b/test/pressurehandler.test.js
index 34bdf9f..92de5a9 100644
--- a/test/pressurehandler.test.js
+++ b/test/pressurehandler.test.js
@@ -121,7 +121,7 @@ test('event loop delay', { skip: !monitorEventLoopDelay }, t => {
 
   fastify.get('/', (req, rep) => rep.send('A'))
 
-  fastify.listen(0, async (err, address) => {
+  fastify.listen({ port: 0 }, async (err, address) => {
     t.error(err)
     fastify.server.unref()
 
@@ -154,7 +154,7 @@ test('heap bytes', t => {
 
   fastify.get('/', (req, rep) => rep.send('A'))
 
-  fastify.listen(0, (err, address) => {
+  fastify.listen({ port: 0 }, (err, address) => {
     t.error(err)
     fastify.server.unref()
 
@@ -186,7 +186,7 @@ test('rss bytes', t => {
 
   fastify.get('/', (req, rep) => rep.send('A'))
 
-  fastify.listen(0, (err, address) => {
+  fastify.listen({ port: 0 }, (err, address) => {
     t.error(err)
     fastify.server.unref()
 
@@ -218,7 +218,7 @@ test('event loop utilization', { skip: !isSupportedVersion }, t => {
 
   fastify.get('/', async (req, rep) => rep.send('A'))
 
-  fastify.listen(0, (err, address) => {
+  fastify.listen({ port: 0 }, (err, address) => {
     t.error(err)
     fastify.server.unref()
 
@@ -263,7 +263,7 @@ test('event loop delay (NaN)', { skip: !isSupportedVersion }, t => {
 
   fastify.get('/', async (req, rep) => rep.send('A'))
 
-  fastify.listen(0, (err, address) => {
+  fastify.listen({ port: 0 }, (err, address) => {
     t.error(err)
     fastify.server.unref()
 
diff --git a/test/statusRoute.test.js b/test/statusRoute.test.js
index 0a5b9a0..a997ee1 100644
--- a/test/statusRoute.test.js
+++ b/test/statusRoute.test.js
@@ -20,7 +20,7 @@ test('Expose status route', t => {
     exposeStatusRoute: true
   })
 
-  fastify.listen(0, (err, address) => {
+  fastify.listen({ port: 0 }, (err, address) => {
     t.error(err)
     fastify.server.unref()
 
@@ -70,7 +70,7 @@ test('Expose status route with additional route options', t => {
   const customConfig = {
     customVal: 'someVal'
   }
-  const fastify = Fastify()
+  const fastify = Fastify({ exposeHeadRoutes: false })
 
   fastify.addHook('onRoute', (routeOptions) => {
     fastify.server.unref()
@@ -97,7 +97,7 @@ test('Expose status route with additional route options', t => {
 test('Expose status route with additional route options and default url', t => {
   t.plan(2)
 
-  const fastify = Fastify()
+  const fastify = Fastify({ exposeHeadRoutes: false })
 
   fastify.addHook('onRoute', (routeOptions) => {
     fastify.server.unref()
@@ -121,7 +121,7 @@ test('Expose status route with additional route options and default url', t => {
 test('Expose status route with additional route options, route schema options', t => {
   const routeSchemaOpts = { hide: true }
 
-  const fastify = Fastify()
+  const fastify = Fastify({ exposeHeadRoutes: false })
 
   fastify.addHook('onRoute', (routeOptions) => {
     fastify.server.unref()
@@ -158,7 +158,7 @@ test('Expose status route with additional route options, route schema options',
 test('Expose status route with additional route options, route schema options and default url', t => {
   const routeSchemaOpts = { hide: true }
 
-  const fastify = Fastify()
+  const fastify = Fastify({ exposeHeadRoutes: false })
 
   fastify.addHook('onRoute', (routeOptions) => {
     fastify.server.unref()
diff --git a/test/test.js b/test/test.js
index 6763fac..f8087d8 100644
--- a/test/test.js
+++ b/test/test.js
@@ -22,7 +22,7 @@ test('Should return 503 on maxEventLoopDelay', t => {
     reply.send({ hello: 'world' })
   })
 
-  fastify.listen(0, async (err, address) => {
+  fastify.listen({ port: 0 }, async (err, address) => {
     t.error(err)
     fastify.server.unref()
 
@@ -65,7 +65,7 @@ test('Should return 503 on maxEventloopUtilization', { skip: !isSupportedVersion
     reply.send({ hello: 'world' })
   })
 
-  fastify.listen(0, async (err, address) => {
+  fastify.listen({ port: 0 }, async (err, address) => {
     t.error(err)
     fastify.server.unref()
 
@@ -102,7 +102,7 @@ test('Should return 503 on maxHeapUsedBytes', t => {
     reply.send({ hello: 'world' })
   })
 
-  fastify.listen(0, (err, address) => {
+  fastify.listen({ port: 0 }, (err, address) => {
     t.error(err)
     fastify.server.unref()
 
@@ -138,7 +138,7 @@ test('Should return 503 on maxRssBytes', t => {
     reply.send({ hello: 'world' })
   })
 
-  fastify.listen(0, (err, address) => {
+  fastify.listen({ port: 0 }, (err, address) => {
     t.error(err)
     fastify.server.unref()
 
@@ -176,7 +176,7 @@ test('Custom message and retry after header', t => {
     reply.send({ hello: 'world' })
   })
 
-  fastify.listen(0, (err, address) => {
+  fastify.listen({ port: 0 }, (err, address) => {
     t.error(err)
     fastify.server.unref()
 
@@ -227,7 +227,7 @@ test('Custom error instance', t => {
     return reply.code(err.statusCode).send(err)
   })
 
-  fastify.listen(0, (err, address) => {
+  fastify.listen({ port: 0 }, (err, address) => {
     t.error(err)
     fastify.server.unref()
 
@@ -269,7 +269,7 @@ test('memoryUsage name space', t => {
     reply.send({ hello: 'world' })
   })
 
-  fastify.listen(0, async (err, address) => {
+  fastify.listen({ port: 0 }, async (err, address) => {
     t.error(err)
     t.equal(typeof fastify.memoryUsage, 'function')
     fastify.server.unref()
@@ -308,7 +308,7 @@ test('memoryUsage name space (without check)', t => {
     reply.send({ hello: 'world' })
   })
 
-  fastify.listen(0, async (err, address) => {
+  fastify.listen({ port: 0 }, async (err, address) => {
     t.error(err)
     t.equal(typeof fastify.memoryUsage, 'function')
     fastify.server.unref()
@@ -351,7 +351,7 @@ test('Custom health check', t => {
       reply.send({ hello: 'world' })
     })
 
-    fastify.listen(0, (err, address) => {
+    fastify.listen({ port: 0 }, (err, address) => {
       t.error(err)
       fastify.server.unref()
 
@@ -386,7 +386,7 @@ test('Custom health check', t => {
       reply.send({ hello: 'world' })
     })
 
-    fastify.listen(0, (err, address) => {
+    fastify.listen({ port: 0 }, (err, address) => {
       t.error(err)
       fastify.server.unref()
 
@@ -419,7 +419,7 @@ test('Custom health check', t => {
       reply.send({ hello: 'world' })
     })
 
-    fastify.listen(0, (err, address) => {
+    fastify.listen({ port: 0 }, (err, address) => {
       t.error(err)
       fastify.server.unref()
       sget({
@@ -468,7 +468,7 @@ test('Custom health check', t => {
       healthCheckInterval: 1000
     })
 
-    fastify.listen(0, (err) => {
+    fastify.listen({ port: 0 }, (err) => {
       t.error(err)
       t.ok(called)
       fastify.close()
@@ -488,7 +488,7 @@ test('Custom health check', t => {
       exposeStatusRoute: true
     })
 
-    fastify.listen(0, (err, address) => {
+    fastify.listen({ port: 0 }, (err, address) => {
       t.error(err)
       fastify.server.unref()
       check = false
@@ -527,7 +527,7 @@ test('Custom health check', t => {
       exposeStatusRoute: true
     })
 
-    fastify.listen(0, (err, address) => {
+    fastify.listen({ port: 0 }, (err, address) => {
       t.error(err)
       fastify.server.unref()
       check = false
@@ -571,7 +571,7 @@ test('Custom health check', t => {
       }
     })
 
-    fastify.listen(0, (err, address) => {
+    fastify.listen({ port: 0 }, (err, address) => {
       t.error(err)
       fastify.server.unref()
 
@@ -610,7 +610,7 @@ test('Custom health check', t => {
       }
     })
 
-    fastify.listen(0, (err, address) => {
+    fastify.listen({ port: 0 }, (err, address) => {
       t.error(err)
       fastify.server.unref()