diff --git a/samples/poc-subapp-pbx/package.json b/samples/poc-subapp-pbx/package.json
index b1840fce2..9455f639d 100644
--- a/samples/poc-subapp-pbx/package.json
+++ b/samples/poc-subapp-pbx/package.json
@@ -35,7 +35,7 @@
   "dependencies": {
     "@babel/runtime": "^7.12.5",
     "@xarc/app": "^8.1.7",
-    "@xarc/fastify-server": "^2.0.0",
+    "@xarc/fastify-server": "^3.0.1",
     "electrode-confippet": "^1.5.0",
     "preact": "^10.4.6",
     "preact-render-to-string": "^5.1.10",