diff --git a/package-lock.json b/package-lock.json
index eea05dea..60b04b68 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -28,7 +28,7 @@
         "debug": "^4.3.4",
         "dot-prop": "^9.0.0",
         "drizzle-orm": "^0.30.8",
-        "fastify": ">= 4",
+        "fastify": "^4.0.0",
         "fastify-plugin": "^4.5.1",
         "hyperblobs": "2.3.0",
         "hypercore": "10.17.0",
diff --git a/package.json b/package.json
index e479e5c7..e8d66c30 100644
--- a/package.json
+++ b/package.json
@@ -171,7 +171,7 @@
     "debug": "^4.3.4",
     "dot-prop": "^9.0.0",
     "drizzle-orm": "^0.30.8",
-    "fastify": ">= 4",
+    "fastify": "^4.0.0",
     "fastify-plugin": "^4.5.1",
     "hyperblobs": "2.3.0",
     "hypercore": "10.17.0",