diff --git a/dev-packages/e2e-tests/test-applications/node-fastify-4/package.json b/dev-packages/e2e-tests/test-applications/node-fastify-4/package.json
index 5b26e3e12582..10e89b1a6639 100644
--- a/dev-packages/e2e-tests/test-applications/node-fastify-4/package.json
+++ b/dev-packages/e2e-tests/test-applications/node-fastify-4/package.json
@@ -13,7 +13,7 @@
   "dependencies": {
     "@sentry/node": "file:../../packed/sentry-node-packed.tgz",
     "@types/node": "^18.19.1",
-    "fastify": "4.29.1",
+    "fastify": "5.12.1",
     "typescript": "5.6.3",
     "ts-node": "10.9.2"
   },