diff --git a/package.json b/package.json
index f252ac7..69a5e8c 100644
--- a/package.json
+++ b/package.json
@@ -5,6 +5,9 @@
   "description": "Mirrors a self-hosted Ghost blog into Standard.site records on an AT Protocol PDS. Self-contained, single-tenant, runs in Docker. CLI for configuration; HTTP only for Ghost webhooks.",
   "license": "MIT",
   "type": "module",
+  "engines": {
+    "node": ">=22"
+  },
   "bin": {
     "gs":            "./dist/cli.js",
     "ghoststandard": "./dist/cli.js"