diff --git a/package.json b/package.json
index 511e16b..072babf 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,7 @@
   },
   "devDependencies": {
     "@types/amqplib": "^0.8.0",
-    "fastify": "^3.10.1",
+    "fastify": "^4.0.0",
     "pre-commit": "^1.2.2",
     "standard": "^17.0.0",
     "tap": "^16.0.0",