diff --git a/package.json b/package.json
index f971f12..c114ae7 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
   },
   "homepage": "https://github.com/fastify/fastify-basic-auth#readme",
   "devDependencies": {
-    "@fastify/auth": "^3.0.0",
+    "@fastify/auth": "^4.0.0",
     "@fastify/pre-commit": "^2.0.2",
     "@types/node": "^18.0.0",
     "fastify": "^4.0.0-rc.2",