diff --git a/.github/FUNDING.yml b/.github/FUNDING.yml
deleted file mode 100644
index d72444c..0000000
--- a/.github/FUNDING.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-# These are supported funding model platforms
-
-github: [dnlup] # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
-patreon: # Replace with a single Patreon username
-open_collective: # Replace with a single Open Collective username
-ko_fi: # Replace with a single Ko-fi username
-tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
-community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
-liberapay: # Replace with a single Liberapay username
-issuehunt: # Replace with a single IssueHunt username
-otechie: # Replace with a single Otechie username
-custom: [] # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 52bdde2..bf82858 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -16,7 +16,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest]
-        node-version: [14.x, 16.x]
+        node-version: [20.x, 22.x]
 
     runs-on: ${{ matrix.os }}
 
@@ -37,5 +37,8 @@ jobs:
       - name: Run tests
         run: npm run test:ci
 
+      - name: Run tests on fastify 4
+        run: npm i fastify@4 && npm run test:ci
+
       - name: Coverage report
         uses: codecov/codecov-action@v3.1.4
diff --git a/README.md b/README.md
index 5b3fe8a..8546129 100644
--- a/README.md
+++ b/README.md
@@ -29,12 +29,6 @@
 $ npm i @dnlup/fastify-traps
 ```
 
-If you are using fastify 3, use the version `1` of the plugin:
-
-```bash
-$ npm i @dnlup/fastify-traps@1
-```
-
 ## Usage
 
 #### Default
diff --git a/index.js b/index.js
index 36e2d16..acf4e7b 100644
--- a/index.js
+++ b/index.js
@@ -79,6 +79,6 @@ function plugin (fastify, opts, next) {
 }
 
 module.exports = fp(plugin, {
-  fastify: '^4.0.0',
+  fastify: '>=4.0.0',
   name: '@dnlup/fastify-traps'
 })
diff --git a/package.json b/package.json
index 4258c5e..2b8cdfa 100644
--- a/package.json
+++ b/package.json
@@ -46,8 +46,8 @@
   },
   "homepage": "https://github.com/dnlup/fastify-traps#readme",
   "devDependencies": {
-    "@types/node": "^20.1.2",
-    "fastify": "^4.1.0",
+    "@types/node": "^22.10.1",
+    "fastify": "^5.1.0",
     "husky": "^8.0.3",
     "lint-staged": "^15.2.0",
     "markdown-toc": "^1.2.0",
@@ -59,6 +59,6 @@
     "typescript": "^5.0.4"
   },
   "dependencies": {
-    "fastify-plugin": "^4.0.0"
+    "fastify-plugin": "^5.0.1"
   }
 }
diff --git a/test/fixtures/close.js b/test/fixtures/close.js
index 8cd2f0f..678b1f4 100644
--- a/test/fixtures/close.js
+++ b/test/fixtures/close.js
@@ -8,7 +8,4 @@ const fastify = Fastify(fastifyOptions)
 
 fastify.register(plugin, { strict: false })
 
-fastify.listen(0, (err) => {
-  const payload = err ? 'error' : 'listening'
-  send(payload)
-})
+fastify.listen({ port: 0 }).then(() => send('listening')).catch(e => send('error'))
diff --git a/test/fixtures/closeError.js b/test/fixtures/closeError.js
index d78b14e..e0a8816 100644
--- a/test/fixtures/closeError.js
+++ b/test/fixtures/closeError.js
@@ -17,6 +17,4 @@ fastify.register(plugin, {
   strict: false
 })
 
-fastify.listen(0, err => {
-  send(err ? 'error' : 'listening')
-})
+fastify.listen({ port: 0 }).then(() => send('listening')).catch(e => send('error'))
diff --git a/test/fixtures/closeTimeout.js b/test/fixtures/closeTimeout.js
index e98bc0c..b959885 100644
--- a/test/fixtures/closeTimeout.js
+++ b/test/fixtures/closeTimeout.js
@@ -18,6 +18,4 @@ fastify.register(plugin, {
   strict: false
 })
 
-fastify.listen(0, err => {
-  send(err ? 'error' : 'listening')
-})
+fastify.listen({ port: 0 }).then(() => send('listening')).catch(e => send('error'))
diff --git a/test/fixtures/customCloseHooks.js b/test/fixtures/customCloseHooks.js
index 199334e..03db6d6 100644
--- a/test/fixtures/customCloseHooks.js
+++ b/test/fixtures/customCloseHooks.js
@@ -12,6 +12,4 @@ fastify.register(plugin, {
   strict: false
 })
 
-fastify.listen(0, err => {
-  send(err ? 'error' : 'listening')
-})
+fastify.listen({ port: 0 }).then(() => send('listening')).catch(e => send('error'))
diff --git a/test/fixtures/customErrorHook.js b/test/fixtures/customErrorHook.js
index 4bf6e7c..8407228 100644
--- a/test/fixtures/customErrorHook.js
+++ b/test/fixtures/customErrorHook.js
@@ -18,6 +18,4 @@ fastify.register(plugin, {
   strict: false
 })
 
-fastify.listen(0, err => {
-  send(err ? 'error' : 'listening')
-})
+fastify.listen({ port: 0 }).then(() => send('listening')).catch(e => send('error'))
diff --git a/test/fixtures/customTimeoutHook.js b/test/fixtures/customTimeoutHook.js
index 4329e25..cd2fb88 100644
--- a/test/fixtures/customTimeoutHook.js
+++ b/test/fixtures/customTimeoutHook.js
@@ -19,6 +19,4 @@ fastify.register(plugin, {
   strict: false
 })
 
-fastify.listen(0, err => {
-  send(err ? 'error' : 'listening')
-})
+fastify.listen({ port: 0 }).then(() => send('listening')).catch(e => send('error'))