diff --git a/deps/undici/src/lib/web/fetch/body.js b/deps/undici/src/lib/web/fetch/body.js
index 5b14d22d27a854..55718ac7c8165d 100644
--- a/deps/undici/src/lib/web/fetch/body.js
+++ b/deps/undici/src/lib/web/fetch/body.js
@@ -309,7 +309,7 @@ function bodyMixinMethods (instance) {
         // Return a Blob whose contents are bytes and type attribute
         // is mimeType.
         return new Blob([bytes], { type: mimeType })
-      }, instance, false)
+      }, instance)
     },
 
     arrayBuffer () {
@@ -318,21 +318,20 @@ function bodyMixinMethods (instance) {
       // given a byte sequence bytes: return a new ArrayBuffer
       // whose contents are bytes.
       return consumeBody(this, (bytes) => {
-        // Note: arrayBuffer already cloned.
-        return bytes.buffer
-      }, instance, true)
+        return new Uint8Array(bytes).buffer
+      }, instance)
     },
 
     text () {
       // The text() method steps are to return the result of running
       // consume body with this and UTF-8 decode.
-      return consumeBody(this, utf8DecodeBytes, instance, false)
+      return consumeBody(this, utf8DecodeBytes, instance)
     },
 
     json () {
       // The json() method steps are to return the result of running
       // consume body with this and parse JSON from bytes.
-      return consumeBody(this, parseJSONFromBytes, instance, false)
+      return consumeBody(this, parseJSONFromBytes, instance)
     },
 
     formData () {
@@ -384,7 +383,7 @@ function bodyMixinMethods (instance) {
         throw new TypeError(
           'Content-Type was not one of "multipart/form-data" or "application/x-www-form-urlencoded".'
         )
-      }, instance, false)
+      }, instance)
     },
 
     bytes () {
@@ -392,8 +391,8 @@ function bodyMixinMethods (instance) {
       // with this and the following step given a byte sequence bytes: return the
       // result of creating a Uint8Array from bytes in this’s relevant realm.
       return consumeBody(this, (bytes) => {
-        return new Uint8Array(bytes.buffer, 0, bytes.byteLength)
-      }, instance, true)
+        return new Uint8Array(bytes)
+      }, instance)
     }
   }
 
@@ -409,9 +408,8 @@ function mixinBody (prototype) {
  * @param {Response|Request} object
  * @param {(value: unknown) => unknown} convertBytesToJSValue
  * @param {Response|Request} instance
- * @param {boolean} [shouldClone]
  */
-async function consumeBody (object, convertBytesToJSValue, instance, shouldClone) {
+async function consumeBody (object, convertBytesToJSValue, instance) {
   webidl.brandCheck(object, instance)
 
   // 1. If object is unusable, then return a promise rejected
@@ -449,7 +447,7 @@ async function consumeBody (object, convertBytesToJSValue, instance, shouldClone
 
   // 6. Otherwise, fully read object’s body given successSteps,
   //    errorSteps, and object’s relevant global object.
-  await fullyReadBody(object[kState].body, successSteps, errorSteps, shouldClone)
+  await fullyReadBody(object[kState].body, successSteps, errorSteps)
 
   // 7. Return promise.
   return promise.promise
diff --git a/deps/undici/src/lib/web/fetch/util.js b/deps/undici/src/lib/web/fetch/util.js
index b7e42870f3e485..dc5ce9b392a68b 100644
--- a/deps/undici/src/lib/web/fetch/util.js
+++ b/deps/undici/src/lib/web/fetch/util.js
@@ -1029,7 +1029,7 @@ function iteratorMixin (name, object, kInternalIterator, keyIndex = 0, valueInde
 /**
  * @see https://fetch.spec.whatwg.org/#body-fully-read
  */
-async function fullyReadBody (body, processBody, processBodyError, shouldClone) {
+async function fullyReadBody (body, processBody, processBodyError) {
   // 1. If taskDestination is null, then set taskDestination to
   //    the result of starting a new parallel queue.
 
@@ -1055,7 +1055,7 @@ async function fullyReadBody (body, processBody, processBodyError, shouldClone)
 
   // 5. Read all bytes from reader, given successSteps and errorSteps.
   try {
-    successSteps(await readAllBytes(reader, shouldClone))
+    successSteps(await readAllBytes(reader))
   } catch (e) {
     errorSteps(e)
   }
@@ -1103,9 +1103,8 @@ function isomorphicEncode (input) {
  * @see https://streams.spec.whatwg.org/#readablestreamdefaultreader-read-all-bytes
  * @see https://streams.spec.whatwg.org/#read-loop
  * @param {ReadableStreamDefaultReader} reader
- * @param {boolean} [shouldClone]
  */
-async function readAllBytes (reader, shouldClone) {
+async function readAllBytes (reader) {
   const bytes = []
   let byteLength = 0
 
@@ -1114,13 +1113,6 @@ async function readAllBytes (reader, shouldClone) {
 
     if (done) {
       // 1. Call successSteps with bytes.
-      if (bytes.length === 1) {
-        const { buffer, byteOffset, byteLength } = bytes[0]
-        if (shouldClone === false) {
-          return Buffer.from(buffer, byteOffset, byteLength)
-        }
-        return Buffer.from(buffer.slice(byteOffset, byteOffset + byteLength), 0, byteLength)
-      }
       return Buffer.concat(bytes, byteLength)
     }
 
diff --git a/deps/undici/src/package-lock.json b/deps/undici/src/package-lock.json
index 926db8a57da54f..91ada55a0d9cbb 100644
--- a/deps/undici/src/package-lock.json
+++ b/deps/undici/src/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "undici",
-  "version": "6.19.1",
+  "version": "6.19.2",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "undici",
-      "version": "6.19.1",
+      "version": "6.19.2",
       "license": "MIT",
       "devDependencies": {
         "@fastify/busboy": "2.1.1",
diff --git a/deps/undici/src/package.json b/deps/undici/src/package.json
index 8bf2adab7008a3..8187dad6884de6 100644
--- a/deps/undici/src/package.json
+++ b/deps/undici/src/package.json
@@ -1,6 +1,6 @@
 {
   "name": "undici",
-  "version": "6.19.1",
+  "version": "6.19.2",
   "description": "An HTTP/1.1 client, written from scratch for Node.js",
   "homepage": "https://undici.nodejs.org",
   "bugs": {
@@ -85,7 +85,7 @@
     "test:node-test": "borp -p \"test/node-test/**/*.js\"",
     "test:tdd": "borp --expose-gc -p \"test/*.js\"",
     "test:tdd:node-test": "borp -p \"test/node-test/**/*.js\" -w",
-    "test:typescript": "tsd && tsc --skipLibCheck test/imports/undici-import.ts",
+    "test:typescript": "tsd && tsc test/imports/undici-import.ts --typeRoots ./types && tsc ./types/*.d.ts --noEmit --typeRoots ./types",
     "test:webidl": "borp -p \"test/webidl/*.js\"",
     "test:websocket": "borp -p \"test/websocket/*.js\"",
     "test:websocket:autobahn": "node test/autobahn/client.js",
@@ -99,7 +99,7 @@
     "coverage:report:ci": "c8 report",
     "bench": "echo \"Error: Benchmarks have been moved to '/benchmarks'\" && exit 1",
     "serve:website": "echo \"Error: Documentation has been moved to '/docs'\" && exit 1",
-    "prepare": "husky install && node ./scripts/platform-shell.js"
+    "prepare": "husky && node ./scripts/platform-shell.js"
   },
   "devDependencies": {
     "@fastify/busboy": "2.1.1",
diff --git a/deps/undici/src/types/formdata.d.ts b/deps/undici/src/types/formdata.d.ts
index df29a572d6bd4f..e676b11ec342a3 100644
--- a/deps/undici/src/types/formdata.d.ts
+++ b/deps/undici/src/types/formdata.d.ts
@@ -2,7 +2,7 @@
 /// <reference types="node" />
 
 import { File } from './file'
-import { SpecIterator, SpecIterableIterator } from './fetch'
+import { SpecIterableIterator } from './fetch'
 
 /**
  * A `string` or `File` that represents a single value from a set of `FormData` key-value pairs.
diff --git a/deps/undici/src/types/index.d.ts b/deps/undici/src/types/index.d.ts
index 18657b6aeb7b6c..f6be35cd9bf40d 100644
--- a/deps/undici/src/types/index.d.ts
+++ b/deps/undici/src/types/index.d.ts
@@ -42,7 +42,7 @@ declare namespace Undici {
   var RedirectHandler: typeof import ('./handlers').RedirectHandler
   var DecoratorHandler: typeof import ('./handlers').DecoratorHandler
   var RetryHandler: typeof import ('./retry-handler').default
-  var createRedirectInterceptor: typeof import ('./interceptors').createRedirectInterceptor
+  var createRedirectInterceptor: typeof import ('./interceptors').default.createRedirectInterceptor
   var BalancedPool: typeof import('./balanced-pool').default;
   var Client: typeof import('./client').default;
   var buildConnector: typeof import('./connector').default;
@@ -67,9 +67,5 @@ declare namespace Undici {
   var File: typeof import('./file').File;
   var FileReader: typeof import('./filereader').FileReader;
   var caches: typeof import('./cache').caches;
-  var interceptors: {
-    dump: typeof import('./interceptors').dump;
-    retry: typeof import('./interceptors').retry;
-    redirect: typeof import('./interceptors').redirect;
-  }
+  var interceptors: typeof import('./interceptors').default;
 }
diff --git a/deps/undici/src/types/interceptors.d.ts b/deps/undici/src/types/interceptors.d.ts
index d546ac344e3689..fab6da08c0d9b5 100644
--- a/deps/undici/src/types/interceptors.d.ts
+++ b/deps/undici/src/types/interceptors.d.ts
@@ -1,11 +1,15 @@
 import Dispatcher from "./dispatcher";
 import RetryHandler from "./retry-handler";
 
-export type DumpInterceptorOpts = { maxSize?: number }
-export type RetryInterceptorOpts = RetryHandler.RetryOptions
-export type RedirectInterceptorOpts = { maxRedirections?: number }
+export default Interceptors;
 
-export declare function createRedirectInterceptor (opts: RedirectInterceptorOpts): Dispatcher.DispatcherComposeInterceptor
-export declare function dump(opts?: DumpInterceptorOpts): Dispatcher.DispatcherComposeInterceptor
-export declare function retry(opts?: RetryInterceptorOpts): Dispatcher.DispatcherComposeInterceptor
-export declare function redirect(opts?: RedirectInterceptorOpts): Dispatcher.DispatcherComposeInterceptor
+declare namespace Interceptors {
+  export type DumpInterceptorOpts = { maxSize?: number }
+  export type RetryInterceptorOpts = RetryHandler.RetryOptions
+  export type RedirectInterceptorOpts = { maxRedirections?: number }
+  
+  export function createRedirectInterceptor(opts: RedirectInterceptorOpts): Dispatcher.DispatcherComposeInterceptor
+  export function dump(opts?: DumpInterceptorOpts): Dispatcher.DispatcherComposeInterceptor
+  export function retry(opts?: RetryInterceptorOpts): Dispatcher.DispatcherComposeInterceptor
+  export function redirect(opts?: RedirectInterceptorOpts): Dispatcher.DispatcherComposeInterceptor
+}
diff --git a/deps/undici/src/types/retry-agent.d.ts b/deps/undici/src/types/retry-agent.d.ts
index cf559d956e504f..963cea99e42c84 100644
--- a/deps/undici/src/types/retry-agent.d.ts
+++ b/deps/undici/src/types/retry-agent.d.ts
@@ -1,7 +1,4 @@
-import Agent from './agent'
-import buildConnector from './connector';
 import Dispatcher from './dispatcher'
-import { IncomingHttpHeaders } from './header'
 import RetryHandler from './retry-handler'
 
 export default RetryAgent
diff --git a/deps/undici/src/types/webidl.d.ts b/deps/undici/src/types/webidl.d.ts
index fe802a201245fb..8a23a85bf0100a 100644
--- a/deps/undici/src/types/webidl.d.ts
+++ b/deps/undici/src/types/webidl.d.ts
@@ -55,9 +55,7 @@ interface WebidlUtil {
     V: unknown,
     bitLength: number,
     signedness: 'signed' | 'unsigned',
-    opts?: ConvertToIntOpts,
-    prefix: string,
-    argument: string
+    opts?: ConvertToIntOpts
   ): number
 
   /**
diff --git a/deps/undici/undici.js b/deps/undici/undici.js
index 0bcbe10d575c8d..6db2e4ce249f34 100644
--- a/deps/undici/undici.js
+++ b/deps/undici/undici.js
@@ -4367,7 +4367,7 @@ var require_util2 = __commonJS({
       });
     }
     __name(iteratorMixin, "iteratorMixin");
-    async function fullyReadBody(body, processBody, processBodyError, shouldClone) {
+    async function fullyReadBody(body, processBody, processBodyError) {
       const successSteps = processBody;
       const errorSteps = processBodyError;
       let reader;
@@ -4378,7 +4378,7 @@ var require_util2 = __commonJS({
         return;
       }
       try {
-        successSteps(await readAllBytes(reader, shouldClone));
+        successSteps(await readAllBytes(reader));
       } catch (e) {
         errorSteps(e);
       }
@@ -4405,19 +4405,12 @@ var require_util2 = __commonJS({
       return input;
     }
     __name(isomorphicEncode, "isomorphicEncode");
-    async function readAllBytes(reader, shouldClone) {
+    async function readAllBytes(reader) {
       const bytes = [];
       let byteLength = 0;
       while (true) {
         const { done, value: chunk } = await reader.read();
         if (done) {
-          if (bytes.length === 1) {
-            const { buffer, byteOffset, byteLength: byteLength2 } = bytes[0];
-            if (shouldClone === false) {
-              return Buffer.from(buffer, byteOffset, byteLength2);
-            }
-            return Buffer.from(buffer.slice(byteOffset, byteOffset + byteLength2), 0, byteLength2);
-          }
           return Buffer.concat(bytes, byteLength);
         }
         if (!isUint8Array(chunk)) {
@@ -5393,18 +5386,18 @@ Content-Type: ${value.type || "application/octet-stream"}\r
               mimeType = serializeAMimeType(mimeType);
             }
             return new Blob2([bytes], { type: mimeType });
-          }, instance, false);
+          }, instance);
         },
         arrayBuffer() {
           return consumeBody(this, (bytes) => {
-            return bytes.buffer;
-          }, instance, true);
+            return new Uint8Array(bytes).buffer;
+          }, instance);
         },
         text() {
-          return consumeBody(this, utf8DecodeBytes, instance, false);
+          return consumeBody(this, utf8DecodeBytes, instance);
         },
         json() {
-          return consumeBody(this, parseJSONFromBytes, instance, false);
+          return consumeBody(this, parseJSONFromBytes, instance);
         },
         formData() {
           return consumeBody(this, (value) => {
@@ -5433,12 +5426,12 @@ Content-Type: ${value.type || "application/octet-stream"}\r
             throw new TypeError(
               'Content-Type was not one of "multipart/form-data" or "application/x-www-form-urlencoded".'
             );
-          }, instance, false);
+          }, instance);
         },
         bytes() {
           return consumeBody(this, (bytes) => {
-            return new Uint8Array(bytes.buffer, 0, bytes.byteLength);
-          }, instance, true);
+            return new Uint8Array(bytes);
+          }, instance);
         }
       };
       return methods;
@@ -5448,7 +5441,7 @@ Content-Type: ${value.type || "application/octet-stream"}\r
       Object.assign(prototype.prototype, bodyMixinMethods(prototype));
     }
     __name(mixinBody, "mixinBody");
-    async function consumeBody(object, convertBytesToJSValue, instance, shouldClone) {
+    async function consumeBody(object, convertBytesToJSValue, instance) {
       webidl.brandCheck(object, instance);
       if (bodyUnusable(object[kState].body)) {
         throw new TypeError("Body is unusable: Body has already been read");
@@ -5467,7 +5460,7 @@ Content-Type: ${value.type || "application/octet-stream"}\r
         successSteps(Buffer.allocUnsafe(0));
         return promise.promise;
       }
-      await fullyReadBody(object[kState].body, successSteps, errorSteps, shouldClone);
+      await fullyReadBody(object[kState].body, successSteps, errorSteps);
       return promise.promise;
     }
     __name(consumeBody, "consumeBody");
diff --git a/src/undici_version.h b/src/undici_version.h
index ec1879873efb49..8fd646706ca701 100644
--- a/src/undici_version.h
+++ b/src/undici_version.h
@@ -2,5 +2,5 @@
 // Refer to tools/dep_updaters/update-undici.sh
 #ifndef SRC_UNDICI_VERSION_H_
 #define SRC_UNDICI_VERSION_H_
-#define UNDICI_VERSION "6.19.1"
+#define UNDICI_VERSION "6.19.2"
 #endif  // SRC_UNDICI_VERSION_H_