diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ac39b54..9fe9c06 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,10 +20,12 @@ jobs:
       fail-fast: false
       matrix:
         os: [macOS-latest, windows-latest, ubuntu-latest]
-        node-version: [14, 16, 18]
+        node-version: [18, 20]
     steps:
-      - uses: actions/checkout@v3
-      - name: Use Node.js ${{ matrix.node-version }}
+      - name: Check out repo
+        uses: actions/checkout@v4
+
+      - name: Setup Node ${{ matrix.node-version }}
         uses: actions/setup-node@v3
         with:
           node-version: ${{ matrix.node-version }}
diff --git a/package.json b/package.json
index d23a950..1b02725 100644
--- a/package.json
+++ b/package.json
@@ -24,15 +24,15 @@
   },
   "homepage": "https://github.com/davidmarkclements/koa-pino-logger#readme",
   "dependencies": {
-    "pino-http": "^7.0.0"
+    "pino-http": "git+https://github.com/pinojs/pino-http.git#next"
   },
   "devDependencies": {
-    "koa": "^2.13.1",
+    "koa": "^2.14.2",
     "koa-bunyan-logger": "^2.1.0",
     "koa-logger": "^3.2.1",
     "koa-morgan": "^1.0.1",
-    "split2": "^4.1.0",
-    "standard": "^17.0.0",
-    "tap": "^16.0.0"
+    "split2": "^4.2.0",
+    "standard": "^17.1.0",
+    "tap": "^16.3.9"
   }
 }
diff --git a/test.js b/test.js
index 128559d..5bb1dae 100644
--- a/test.js
+++ b/test.js
@@ -38,6 +38,11 @@ function doGet (server) {
   http.get('http://' + address.address + ':' + address.port)
 }
 
+function doGetError (server) {
+  const address = server.address()
+  http.get('http://' + address.address + ':' + address.port + '/error')
+}
+
 test('default settings', function (t) {
   const dest = split(JSON.parse)
   const logger = pinoLogger(dest)
@@ -120,13 +125,13 @@ test('supports errors in the response', function (t) {
 
   const app = setup(t, logger, function (err, server) {
     t.error(err)
-    const address = server.address()
-    http.get('http://' + address.address + ':' + address.port + '/error')
+    doGetError(server)
   })
 
   app.use((ctx, next) => {
     if (ctx.request.url === '/error') {
       ctx.body = ''
+      ctx.res.flushHeaders()
       ctx.res.emit('error', Error('boom!'))
     }
     return next()
@@ -143,14 +148,36 @@ test('supports errors in the response', function (t) {
   })
 })
 
+test('status code will be null if headers are not flushed in response', function (t) {
+  t.plan(2)
+  const dest = split(JSON.parse)
+  const logger = pinoLogger(dest)
+
+  const app = setup(t, logger, function (err, server) {
+    t.error(err)
+    doGetError(server)
+  })
+
+  app.use((ctx, next) => {
+    if (ctx.request.url === '/error') {
+      ctx.body = ''
+      ctx.res.emit('error', Error('boom!'))
+    }
+    return next()
+  })
+
+  dest.on('data', function (line) {
+    t.equal(line.res.statusCode, null, 'statusCode is null')
+  })
+})
+
 test('supports errors in the middleware', function (t) {
   const dest = split(JSON.parse)
   const logger = pinoLogger(dest)
 
   const app = setup(t, logger, function (err, server) {
     t.error(err)
-    const address = server.address()
-    http.get('http://' + address.address + ':' + address.port + '/error')
+    doGetError(server)
   })
 
   app.use((ctx, next) => {
@@ -183,8 +210,7 @@ test('does not inhibit downstream error handling', function (t) {
 
   const app = setup(t, logger, function (err, server) {
     t.error(err)
-    const address = server.address()
-    http.get('http://' + address.address + ':' + address.port + '/error')
+    doGetError(server)
   })
 
   app.use((ctx, next) => {
@@ -222,8 +248,7 @@ test('work with error reporting middlewares', function (t) {
 
   const app = setup(t, [reporter, logger], function (err, server) {
     t.error(err)
-    const address = server.address()
-    http.get('http://' + address.address + ':' + address.port + '/error')
+    doGetError(server)
   })
 
   app.use((ctx, next) => {