diff --git a/node_modules/.package-lock.json b/node_modules/.package-lock.json
index e738bf3b09..4e67792666 100644
--- a/node_modules/.package-lock.json
+++ b/node_modules/.package-lock.json
@@ -8500,10 +8500,9 @@
       }
     },
     "node_modules/undici": {
-      "version": "5.28.5",
-      "resolved": "https://registry.npmjs.org/undici/-/undici-5.28.5.tgz",
-      "integrity": "sha512-zICwjrDrcrUE0pyyJc1I2QzBkLM8FINsgOrt6WjA+BgajVq9Nxu2PbFFXUrAggLfDXlZGZBVZYw7WNV5KiBiBA==",
-      "license": "MIT",
+      "version": "5.29.0",
+      "resolved": "https://registry.npmjs.org/undici/-/undici-5.29.0.tgz",
+      "integrity": "sha512-raqeBD6NQK4SkWhQzeYKd1KmIG6dllBOTt55Rmkt4HtI9mwdWtJljnrXjAFUBLTSN67HWrOIZ3EPF4kjUw80Bg==",
       "dependencies": {
         "@fastify/busboy": "^2.0.0"
       },
diff --git a/node_modules/undici/lib/cookies/index.js b/node_modules/undici/lib/cookies/index.js
index c9c1f28ee1..f867b197a0 100644
--- a/node_modules/undici/lib/cookies/index.js
+++ b/node_modules/undici/lib/cookies/index.js
@@ -1,7 +1,7 @@
 'use strict'
 
 const { parseSetCookie } = require('./parse')
-const { stringify, getHeadersList } = require('./util')
+const { stringify } = require('./util')
 const { webidl } = require('../fetch/webidl')
 const { Headers } = require('../fetch/headers')
 
@@ -77,14 +77,13 @@ function getSetCookies (headers) {
 
   webidl.brandCheck(headers, Headers, { strict: false })
 
-  const cookies = getHeadersList(headers).cookies
+  const cookies = headers.getSetCookie()
 
   if (!cookies) {
     return []
   }
 
-  // In older versions of undici, cookies is a list of name:value.
-  return cookies.map((pair) => parseSetCookie(Array.isArray(pair) ? pair[1] : pair))
+  return cookies.map((pair) => parseSetCookie(pair))
 }
 
 /**
diff --git a/node_modules/undici/lib/cookies/util.js b/node_modules/undici/lib/cookies/util.js
index 2290329fe8..be3ccbeba3 100644
--- a/node_modules/undici/lib/cookies/util.js
+++ b/node_modules/undici/lib/cookies/util.js
@@ -1,8 +1,9 @@
 'use strict'
 
-const assert = require('assert')
-const { kHeadersList } = require('../core/symbols')
-
+/**
+ * @param {string} value
+ * @returns {boolean}
+ */
 function isCTLExcludingHtab (value) {
   if (value.length === 0) {
     return false
@@ -263,29 +264,11 @@ function stringify (cookie) {
   return out.join('; ')
 }
 
-let kHeadersListNode
-
-function getHeadersList (headers) {
-  if (headers[kHeadersList]) {
-    return headers[kHeadersList]
-  }
-
-  if (!kHeadersListNode) {
-    kHeadersListNode = Object.getOwnPropertySymbols(headers).find(
-      (symbol) => symbol.description === 'headers list'
-    )
-
-    assert(kHeadersListNode, 'Headers cannot be parsed')
-  }
-
-  const headersList = headers[kHeadersListNode]
-  assert(headersList)
-
-  return headersList
-}
-
 module.exports = {
   isCTLExcludingHtab,
-  stringify,
-  getHeadersList
+  validateCookieName,
+  validateCookiePath,
+  validateCookieValue,
+  toIMFDate,
+  stringify
 }
diff --git a/node_modules/undici/lib/fetch/headers.js b/node_modules/undici/lib/fetch/headers.js
index 2f1c0be5a4..fcab732961 100644
--- a/node_modules/undici/lib/fetch/headers.js
+++ b/node_modules/undici/lib/fetch/headers.js
@@ -10,6 +10,7 @@ const {
   isValidHeaderName,
   isValidHeaderValue
 } = require('./util')
+const util = require('util')
 const { webidl } = require('./webidl')
 const assert = require('assert')
 
@@ -563,6 +564,9 @@ Object.defineProperties(Headers.prototype, {
   [Symbol.toStringTag]: {
     value: 'Headers',
     configurable: true
+  },
+  [util.inspect.custom]: {
+    enumerable: false
   }
 })
 
diff --git a/node_modules/undici/lib/pool.js b/node_modules/undici/lib/pool.js
index e3cd3399e6..86b29d4420 100644
--- a/node_modules/undici/lib/pool.js
+++ b/node_modules/undici/lib/pool.js
@@ -73,6 +73,20 @@ class Pool extends PoolBase {
       ? { ...options.interceptors }
       : undefined
     this[kFactory] = factory
+
+    this.on('connectionError', (origin, targets, error) => {
+      // If a connection error occurs, we remove the client from the pool,
+      // and emit a connectionError event. They will not be re-used.
+      // Fixes https://github.com/nodejs/undici/issues/3895
+      for (const target of targets) {
+        // Do not use kRemoveClient here, as it will close the client,
+        // but the client cannot be closed in this state.
+        const idx = this[kClients].indexOf(target)
+        if (idx !== -1) {
+          this[kClients].splice(idx, 1)
+        }
+      }
+    })
   }
 
   [kGetDispatcher] () {
diff --git a/node_modules/undici/package.json b/node_modules/undici/package.json
index 0c6b71e175..738688d959 100644
--- a/node_modules/undici/package.json
+++ b/node_modules/undici/package.json
@@ -1,6 +1,6 @@
 {
   "name": "undici",
-  "version": "5.28.5",
+  "version": "5.29.0",
   "description": "An HTTP/1.1 client, written from scratch for Node.js",
   "homepage": "https://undici.nodejs.org",
   "bugs": {
diff --git a/package-lock.json b/package-lock.json
index 59c09e9b89..ccb3e13dd1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8568,10 +8568,9 @@
       }
     },
     "node_modules/undici": {
-      "version": "5.28.5",
-      "resolved": "https://registry.npmjs.org/undici/-/undici-5.28.5.tgz",
-      "integrity": "sha512-zICwjrDrcrUE0pyyJc1I2QzBkLM8FINsgOrt6WjA+BgajVq9Nxu2PbFFXUrAggLfDXlZGZBVZYw7WNV5KiBiBA==",
-      "license": "MIT",
+      "version": "5.29.0",
+      "resolved": "https://registry.npmjs.org/undici/-/undici-5.29.0.tgz",
+      "integrity": "sha512-raqeBD6NQK4SkWhQzeYKd1KmIG6dllBOTt55Rmkt4HtI9mwdWtJljnrXjAFUBLTSN67HWrOIZ3EPF4kjUw80Bg==",
       "dependencies": {
         "@fastify/busboy": "^2.0.0"
       },