diff --git a/package.json b/package.json
index 94541085..1b505c36 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,6 @@
   "main": "app.js",
   "scripts": {
     "start": "node .",
-    "postinstall": "node scripts/patch-body-parser.js",
     "lint": "npm run lint:js && npm run lint:prettier",
     "lint:fix": "npm run lint:js:fix && npm run lint:prettier:fix",
     "lint:prettier": "prettier --cache --cache-location .cache/prettier --cache-strategy content --check .",
diff --git a/scripts/patch-body-parser.js b/scripts/patch-body-parser.js
deleted file mode 100644
index c97cbf56..00000000
--- a/scripts/patch-body-parser.js
+++ /dev/null
@@ -1,35 +0,0 @@
-/**
- * Patches nhsuk-prototype-kit to increase parameterLimit for forms with many fields.
- * This runs automatically after npm install via the postinstall script.
- */
-
-const fs = require('node:fs')
-const path = require('node:path')
-
-const filePath = path.join(
-  __dirname,
-  '../node_modules/nhsuk-prototype-kit/lib/middleware/index.js'
-)
-
-try {
-  let content = fs.readFileSync(filePath, 'utf8')
-
-  // Check if already patched
-  if (/bodyParser\.urlencoded\([^)]*parameterLimit/.test(content)) {
-    console.log('✓ parameterLimit already patched')
-    // process.exit(0)
-  }
-
-  // Match bodyParser.urlencoded({ ... }) and add parameterLimit
-  const regex = /(bodyParser\.urlencoded\(\{[^}]+)(}\))/
-
-  if (regex.test(content)) {
-    content = content.replace(regex, '$1, parameterLimit: 10000 $2')
-    fs.writeFileSync(filePath, content, 'utf8')
-    console.log('✓ Patched parameterLimit to 10000 in nhsuk-prototype-kit')
-  } else {
-    console.warn('⚠ Could not find expected body-parser config to patch')
-  }
-} catch (err) {
-  console.error('⚠ Failed to patch body-parser:', err.message)
-}