diff --git a/package.json b/package.json
index 98db439..fb7f4f2 100644
--- a/package.json
+++ b/package.json
@@ -32,9 +32,9 @@
     "@types/node": "latest",
     "@types/supertest": "2.0.7",
     "autocannon": "3.2.0",
-    "codecov": "3.1.0",
+    "codecov": "3.2.0",
     "concurrently": "4.1.0",
-    "fastify": "1.13.1",
+    "fastify": "4.0.0",
     "mocha": "5.2.0",
     "nyc": "13.1.0",
     "supertest": "3.3.0",