diff --git a/packages/integrations/vercel/package.json b/packages/integrations/vercel/package.json
index e93639b60..d7713183c 100644
--- a/packages/integrations/vercel/package.json
+++ b/packages/integrations/vercel/package.json
@@ -23,7 +23,6 @@
   },
   "dependencies": {
     "@astrojs/webapi": "^0.11.0",
-    "@vercel/node": "^1.14.0",
     "esbuild": "0.14.25",
     "globby": "^12.2.0"
   },
diff --git a/packages/integrations/vercel/src/index.ts b/packages/integrations/vercel/src/index.ts
index c89435ece..5d6794206 100644
--- a/packages/integrations/vercel/src/index.ts
+++ b/packages/integrations/vercel/src/index.ts
@@ -1,17 +1,21 @@
 import type { AstroIntegration, AstroConfig } from 'astro';
-import fs from 'fs/promises';
+import type { IncomingMessage, ServerResponse } from 'http';
 import type { PathLike } from 'fs';
+
+import fs from 'fs/promises';
 import { fileURLToPath } from 'url';
 import { globby } from 'globby';
 import esbuild from 'esbuild';
 
-export type { VercelApiHandler, VercelRequest, VercelRequestBody, VercelRequestCookies, VercelRequestQuery, VercelResponse } from '@vercel/node';
+export type VercelRequest = IncomingMessage;
+export type VercelResponse = ServerResponse;
+export type VercelHandler = (request: VercelRequest, response: VercelResponse) => void | Promise<void>;
 
 const writeJson = (path: PathLike, data: any) => fs.writeFile(path, JSON.stringify(data), { encoding: 'utf-8' });
 
 const ENDPOINT_GLOB = 'api/**/*.{js,ts,tsx}';
 
-export function vercelFunctions(): AstroIntegration {
+function vercelFunctions(): AstroIntegration {
 	let _config: AstroConfig;
 	let output: URL;
 
@@ -59,11 +63,14 @@ export function vercelFunctions(): AstroIntegration {
 					entryPoints: endpoints.map((endpoint) => new URL(endpoint, _config.pages)).map(fileURLToPath),
 					outdir: fileURLToPath(new URL('./server/pages/api/', output)),
 					outbase: fileURLToPath(new URL('./api/', _config.pages)),
+					inject: [fileURLToPath(new URL('./shims.js', import.meta.url))],
 					bundle: true,
 					target: 'node14',
 					platform: 'node',
 					format: 'cjs',
 				});
+
+				await writeJson(new URL(`./package.json`, output), { type: 'commonjs' });
 			},
 		},
 	};
diff --git a/packages/integrations/vercel/src/shims.ts b/packages/integrations/vercel/src/shims.ts
new file mode 100644
index 000000000..01f7b39bf
--- /dev/null
+++ b/packages/integrations/vercel/src/shims.ts
@@ -0,0 +1,5 @@
+import { polyfill } from '@astrojs/webapi';
+
+polyfill(globalThis, {
+	exclude: 'window document',
+});
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index bc3892d79..8fbf184ef 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -1344,14 +1344,12 @@ importers:
   packages/integrations/vercel:
     specifiers:
       '@astrojs/webapi': ^0.11.0
-      '@vercel/node': ^1.14.0
       astro: workspace:*
       astro-scripts: workspace:*
       esbuild: 0.14.25
       globby: ^12.2.0
     dependencies:
       '@astrojs/webapi': link:../../webapi
-      '@vercel/node': 1.14.0
       esbuild: 0.14.25
       globby: 12.2.0
     devDependencies:
@@ -4308,19 +4306,6 @@ packages:
       '@unocss/scope': 0.15.6
     dev: true
 
-  /@vercel/node-bridge/2.2.0:
-    resolution: {integrity: sha512-ydYlZyIQfsuriF6qTt/F4vaAt+nb4ZKhLEl2o5AQFa5ED7LoPS5w01Xbujy+25pqS1ODu8/bsqOCUSX8y/+tSQ==}
-    dev: false
-
-  /@vercel/node/1.14.0:
-    resolution: {integrity: sha512-UAb1qQMeTkSXz95yljJpz0MyTzcj++B/1XR0vKFZOs2CEfSkBO1DjzX6BkaKriaihBdbGM/X9UoMJfWfUBBn8Q==}
-    dependencies:
-      '@types/node': 17.0.23
-      '@vercel/node-bridge': 2.2.0
-      ts-node: 8.9.1_typescript@4.3.4
-      typescript: 4.3.4
-    dev: false
-
   /@vitejs/plugin-vue/2.2.4_vite@2.8.6+vue@3.2.31:
     resolution: {integrity: sha512-ev9AOlp0ljCaDkFZF3JwC/pD2N4Hh+r5srl5JHM6BKg5+99jiiK0rE/XaRs3pVm1wzyKkjUy/StBSoXX5fFzcw==}
     engines: {node: '>=12.0.0'}
@@ -4605,10 +4590,6 @@ packages:
       readable-stream: 2.3.7
     dev: true
 
-  /arg/4.1.3:
-    resolution: {integrity: sha512-58S9QDqG0Xx27YwPSt9fJxivjYl432YCwfDMfZ+71RAqUrZef7LrKQZ3LHLOwCS4FLNBplP533Zx895SeOCHvA==}
-    dev: false
-
   /arg/5.0.1:
     resolution: {integrity: sha512-e0hDa9H2Z9AwFkk2qDlwhoMYE4eToKarchkQHovNdLTCYMHZHeRjI71crOh+dio4K6u1IcwubQqo79Ga4CyAQA==}
 
@@ -4858,6 +4839,7 @@ packages:
 
   /buffer-from/1.1.2:
     resolution: {integrity: sha512-E+XQCRwSbaaiChtv6k6Dwgc+bx+Bs6vuKJHHl5kox/BaKbhiXzqQOwK4cO22yElGp2OCmjwVhT3HmxgyPGnJfQ==}
+    dev: true
 
   /buffer/5.7.1:
     resolution: {integrity: sha512-EHcyIPBQ4BSGlvjB16k5KgAJ27CIsHY/2JBmCRReo48y9rQ3MaUzWX3KVlBa4U7MyX02HdVj0K7C3WaB3ju7FQ==}
@@ -5458,11 +5440,6 @@ packages:
   /didyoumean/1.2.2:
     resolution: {integrity: sha512-gxtyfqMg7GKyhQmb056K7M3xszy/myH8w+B4RT+QXBQsvAOdc3XymqDDPHx1BgPgsdAA5SIifona89YtRATDzw==}
 
-  /diff/4.0.2:
-    resolution: {integrity: sha512-58lmxKSA4BNyLz+HHMUzlOEpg09FV+ev6ZMe3vJihgdxzgcwZ8VoEEPmALCZG9LmqfVoNMMKpttIYTVG6uDY7A==}
-    engines: {node: '>=0.3.1'}
-    dev: false
-
   /diff/5.0.0:
     resolution: {integrity: sha512-/VTCrvm5Z0JGty/BWHljh+BAiw3IK+2j87NGMu8Nwc/f48WoDAC395uomO9ZD117ZOBaHmkX1oyLvkVM/aIT3w==}
     engines: {node: '>=0.3.1'}
@@ -7510,10 +7487,6 @@ packages:
       sourcemap-codec: 1.4.8
     dev: false
 
-  /make-error/1.3.6:
-    resolution: {integrity: sha512-s8UhlNe7vPKomQhC1qFelMokr/Sc3AgNbso3n74mVPA5LTZwkB9NlXf4XPamLxJE8h0gh73rM94xvwRT2CVInw==}
-    dev: false
-
   /map-obj/1.0.1:
     resolution: {integrity: sha1-2TPOuSBdgr3PSIb2dCvcK03qFG0=}
     engines: {node: '>=0.10.0'}
@@ -9406,6 +9379,7 @@ packages:
     dependencies:
       buffer-from: 1.1.2
       source-map: 0.6.1
+    dev: true
 
   /source-map/0.5.7:
     resolution: {integrity: sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w=}
@@ -9957,21 +9931,6 @@ packages:
   /trough/2.1.0:
     resolution: {integrity: sha512-AqTiAOLcj85xS7vQ8QkAV41hPDIJ71XJB4RCUrzo/1GM2CQwhkJGaf9Hgr7BOugMRpgGUrqRg/DrBDl4H40+8g==}
 
-  /ts-node/8.9.1_typescript@4.3.4:
-    resolution: {integrity: sha512-yrq6ODsxEFTLz0R3BX2myf0WBCSQh9A+py8PBo1dCzWIOcvisbyH6akNKqDHMgXePF2kir5mm5JXJTH3OUJYOQ==}
-    engines: {node: '>=6.0.0'}
-    hasBin: true
-    peerDependencies:
-      typescript: '>=2.7'
-    dependencies:
-      arg: 4.1.3
-      diff: 4.0.2
-      make-error: 1.3.6
-      source-map-support: 0.5.21
-      typescript: 4.3.4
-      yn: 3.1.1
-    dev: false
-
   /tsconfig-resolver/3.0.1:
     resolution: {integrity: sha512-ZHqlstlQF449v8glscGRXzL6l2dZvASPCdXJRWG4gHEZlUVx2Jtmr+a2zeVG4LCsKhDXKRj5R3h0C/98UcVAQg==}
     dependencies:
@@ -10193,12 +10152,6 @@ packages:
     resolution: {integrity: sha512-AiknQSEqKVGDDjtZqeKrUoTlcj7FKhupmnVUgz6KoOKtvMwRGE6hUNJ/nVear+h7fnUPO1q/htSkYKb1pyntkQ==}
     engines: {node: '>=12.20'}
 
-  /typescript/4.3.4:
-    resolution: {integrity: sha512-uauPG7XZn9F/mo+7MrsRjyvbxFpzemRjKEZXS4AK83oP2KKOJPvb+9cO/gmnv8arWZvhnjVOXz7B49m1l0e9Ew==}
-    engines: {node: '>=4.2.0'}
-    hasBin: true
-    dev: false
-
   /typescript/4.6.3:
     resolution: {integrity: sha512-yNIatDa5iaofVozS/uQJEl3JRWLKKGJKh6Yaiv0GLGSuhpFJe7P3SbHZ8/yjAHRQwKRoA6YZqlfjXWmVzoVSMw==}
     engines: {node: '>=4.2.0'}
@@ -10995,11 +10948,6 @@ packages:
       yargs-parser: 20.2.4
     dev: true
 
-  /yn/3.1.1:
-    resolution: {integrity: sha512-Ux4ygGWsu2c7isFWe8Yu1YluJmqVhxqK2cLXNQA5AcC3QfbGNpM7fu0Y8b/z16pXLnFxZYvWhd3fhBY9DLmC6Q==}
-    engines: {node: '>=6'}
-    dev: false
-
   /yocto-queue/0.1.0:
     resolution: {integrity: sha512-rVksvsnNCdJ/ohGc6xgPwyN8eheCxsiLM8mxuE/t/mOVqJewPuO1miLpTHQiRgTKCLexL4MeAFVagts7HmNZ2Q==}
     engines: {node: '>=10'}