diff --git a/packages/inter-protocol/package.json b/packages/inter-protocol/package.json
index b8e0f111ddc1..b869a07f4c91 100644
--- a/packages/inter-protocol/package.json
+++ b/packages/inter-protocol/package.json
@@ -10,7 +10,6 @@
   "scripts": {
     "build": "yarn build:bundles",
     "build:bundles": "node ./scripts/build-bundles.js",
-    "build:upgrade-vaults-proposal": "agoric run scripts/upgrade-vaults.js",
     "test": "ava",
     "test:c8": "c8 $C8_OPTIONS ava --config=ava-nesm.config.js",
     "test:xs": "exit 0",