diff --git a/package.json b/package.json
index 31ec4b5..bf8b7a0 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
     "@connectrpc/connect": "1.4",
     "@connectrpc/connect-node": "1.4",
     "@connectrpc/connect-web": "1.4",
-    "@utxorpc/spec": "0.15.0",
+    "@utxorpc/spec": "0.16.0",
     "buffer": "^6.0.3"
   },
   "exports": {