diff --git a/packages/boot/test/bootstrapTests/test-walletSurvivesZoeRestart.ts b/packages/boot/test/bootstrapTests/test-walletSurvivesZoeRestart.ts
index c1fef632c27..ea327accb03 100644
--- a/packages/boot/test/bootstrapTests/test-walletSurvivesZoeRestart.ts
+++ b/packages/boot/test/bootstrapTests/test-walletSurvivesZoeRestart.ts
@@ -288,7 +288,7 @@ const checkFlow1 = async (
     // restart Zoe
     // /////// Upgrading ////////////////////////////////
     await buildAndExecuteProposal(
-      '@agoric/builders/scripts/vats/null-upgrade-zoe-proposal.js',
+      '@agoric/builders/scripts/vats/upgrade-zoe-proposal.js',
     );
 
     await buyer.tryExitOffer(`${collateralBrandKey}-bid3`);
diff --git a/packages/builders/package.json b/packages/builders/package.json
index c4960efe864..16428c20391 100644
--- a/packages/builders/package.json
+++ b/packages/builders/package.json
@@ -8,9 +8,8 @@
   "scripts": {
     "build": "exit 0",
     "build:add-STARS-proposal": "echo This command has been deprecated. Please run this instead: agoric run scripts/inter-protocol/add-STARS.js",
-    "build:restart-vats-proposal": "echo echo This command has been deprecated. Please run this instead: agoric run scripts/vats/restart-vats.js",
+    "build:restart-vats-proposal": "echo This command has been deprecated. Please run this instead: agoric run scripts/vats/restart-vats.js",
     "build:zcf-proposal": "echo This command has been deprecated. Please run this instead: agoric run scripts/vats/replace-zoe.js",
-    "build:null-upgrade-zoe-proposal": "echo This command has been deprecated. Please run this instead: agoric run scripts/vats/replace-zoe.js",
     "prepack": "tsc --build tsconfig.build.json",
     "postpack": "git clean -f '*.d.ts*'",
     "test": "ava",
diff --git a/packages/builders/scripts/vats/upgrade-zoe.js b/packages/builders/scripts/vats/upgrade-zoe.js
index a9ea1fdec9e..e7503efbb13 100644
--- a/packages/builders/scripts/vats/upgrade-zoe.js
+++ b/packages/builders/scripts/vats/upgrade-zoe.js
@@ -3,7 +3,7 @@ import { makeHelpers } from '@agoric/deploy-script-support';
 /** @type {import('@agoric/deploy-script-support/src/externalTypes.js').ProposalBuilder} */
 export const defaultProposalBuilder = async ({ publishRef, install }) =>
   harden({
-    sourceSpec: '@agoric/vats/src/proposals/null-upgrade-zoe-proposal.js',
+    sourceSpec: '@agoric/vats/src/proposals/upgrade-zoe-proposal.js',
     getManifestCall: [
       'getManifestForUpgradingZoe',
       {
@@ -14,5 +14,5 @@ export const defaultProposalBuilder = async ({ publishRef, install }) =>
 
 export default async (homeP, endowments) => {
   const { writeCoreProposal } = await makeHelpers(homeP, endowments);
-  await writeCoreProposal('null-upgrade-zoe', defaultProposalBuilder);
+  await writeCoreProposal('upgrade-zoe', defaultProposalBuilder);
 };
diff --git a/packages/vats/src/proposals/null-upgrade-zoe-proposal.js b/packages/vats/src/proposals/upgrade-zoe-proposal.js
similarity index 92%
rename from packages/vats/src/proposals/null-upgrade-zoe-proposal.js
rename to packages/vats/src/proposals/upgrade-zoe-proposal.js
index bf907d345d4..946b05b2856 100644
--- a/packages/vats/src/proposals/null-upgrade-zoe-proposal.js
+++ b/packages/vats/src/proposals/upgrade-zoe-proposal.js
@@ -10,7 +10,7 @@ import { E } from '@endo/far';
  * @param {object} options
  * @param {{ zoeRef: VatSourceRef; zcfRef: VatSourceRef }} options.options
  */
-export const nullUpgradeZoe = async (
+export const upgradeZoe = async (
   { consume: { vatAdminSvc, vatStore } },
   options,
 ) => {
@@ -26,7 +26,7 @@ export const nullUpgradeZoe = async (
 
 export const getManifestForUpgradingZoe = (_powers, { zoeRef }) => ({
   manifest: {
-    [nullUpgradeZoe.name]: {
+    [upgradeZoe.name]: {
       consume: {
         vatAdminSvc: 'vatAdminSvc',
         vatStore: 'vatStore',