diff --git a/package.json b/package.json
index b40cafd..6940abf 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
     "@fastify/websocket": "^11.2.0",
     "alpinejs": "^3.15.8",
     "base-x": "^5.0.1",
-    "fastify": "^5.8.2",
+    "fastify": "^5.8.3",
     "js-base64": "3.7.7"
   },
   "devDependencies": {
diff --git a/yarn.lock b/yarn.lock
index 7169dff..4ea2161 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1054,9 +1054,9 @@ __metadata:
   languageName: node
   linkType: hard
 
-"fastify@npm:^5.8.2":
-  version: 5.8.2
-  resolution: "fastify@npm:5.8.2"
+"fastify@npm:^5.8.3":
+  version: 5.8.4
+  resolution: "fastify@npm:5.8.4"
   dependencies:
     "@fastify/ajv-compiler": "npm:^4.0.5"
     "@fastify/error": "npm:^4.0.0"
@@ -1073,7 +1073,7 @@ __metadata:
     secure-json-parse: "npm:^4.0.0"
     semver: "npm:^7.6.0"
     toad-cache: "npm:^3.7.0"
-  checksum: 10c0/f6ee45032d8467c590b665a5d1d4c90b45c8cc51d427d29ff0c42759fa2ab88168bd9a473675bd163991bc84565e4d6ebdb8b914a6ecea5df59844fd1dfc7553
+  checksum: 10c0/560ef35d59f96d9900c6e96946736215873ed8aa7a493f61f9489c1bdbddf8f714c735886c00e21077fe9a0ea96539b8b5d6755e8877c464b0b04b6afde9c5ab
   languageName: node
   linkType: hard
 
@@ -1801,7 +1801,7 @@ __metadata:
     alpinejs: "npm:^3.15.8"
     base-x: "npm:^5.0.1"
     esbuild: "npm:^0.27.3"
-    fastify: "npm:^5.8.2"
+    fastify: "npm:^5.8.3"
     js-base64: "npm:3.7.7"
     tsx: "npm:^4.21.0"
     typescript: "npm:^5.9.3"