diff --git a/packages/platform-fastify/adapters/fastify-adapter.ts b/packages/platform-fastify/adapters/fastify-adapter.ts
index e18ba56a892..0c4248c4fde 100644
--- a/packages/platform-fastify/adapters/fastify-adapter.ts
+++ b/packages/platform-fastify/adapters/fastify-adapter.ts
@@ -42,7 +42,7 @@ import {
   Response as LightMyRequestResponse,
 } from 'light-my-request';
 // `querystring` is used internally in fastify for registering urlencoded body parser.
-import { parse as querystringParse } from 'querystring';
+import { parse as querystringParse } from 'fast-querystring';
 import {
   FastifyStaticOptions,
   PointOfViewOptions,
diff --git a/packages/platform-fastify/package.json b/packages/platform-fastify/package.json
index 56e05159788..43f7015e090 100644
--- a/packages/platform-fastify/package.json
+++ b/packages/platform-fastify/package.json
@@ -20,6 +20,7 @@
     "@fastify/cors": "8.1.0",
     "@fastify/formbody": "7.1.0",
     "@fastify/middie": "8.0.0",
+    "fast-querystring": "^0.5.0",
     "fastify": "4.5.3",
     "light-my-request": "5.5.1",
     "path-to-regexp": "3.2.0",