diff --git a/a3p-integration/proposals/z:acceptance/governance.test.js b/a3p-integration/proposals/z:acceptance/governance.test.js
index 353590370eb..f55e2a492c6 100644
--- a/a3p-integration/proposals/z:acceptance/governance.test.js
+++ b/a3p-integration/proposals/z:acceptance/governance.test.js
@@ -3,7 +3,7 @@
 import test from 'ava';
 
 import { makeWalletUtils } from '@agoric/client-utils';
-import { GOV1ADDR, GOV2ADDR } from '@agoric/synthetic-chain';
+import { evalBundles, getDetailsMatchingVats, GOV1ADDR, GOV2ADDR, waitForBlock } from '@agoric/synthetic-chain';
 import { makeGovernanceDriver } from './test-lib/governance.js';
 import { networkConfig } from './test-lib/index.js';
 import { makeTimerUtils } from './test-lib/utils.js';
@@ -106,3 +106,16 @@ test.serial(
     t.like(latestOutcome, { outcome: 'win' });
   },
 );
+
+test.only('dummy Reserve', async t => {
+
+  console.log('Log: Before ', await getDetailsMatchingVats('reserve'));
+
+  await evalBundles('upgrade-reserve');
+
+  await waitForBlock(10);
+
+  console.log('Log: After ', await getDetailsMatchingVats('reserve'));
+
+  t.pass();
+});
diff --git a/a3p-integration/proposals/z:acceptance/package.json b/a3p-integration/proposals/z:acceptance/package.json
index c1f8a54ce1d..daa0374ef33 100644
--- a/a3p-integration/proposals/z:acceptance/package.json
+++ b/a3p-integration/proposals/z:acceptance/package.json
@@ -4,7 +4,8 @@
     "sdk-generate": [
       "testing/start-valueVow.js start-valueVow",
       "vats/test-localchain.js localchaintest-submission",
-      "testing/restart-valueVow.js restart-valueVow"
+      "testing/restart-valueVow.js restart-valueVow",
+      "testing/upgrade-reserve.js upgrade-reserve"
     ]
   },
   "type": "module",
diff --git a/packages/builders/scripts/testing/upgrade-reserve.js b/packages/builders/scripts/testing/upgrade-reserve.js
new file mode 100644
index 00000000000..e54b5fc17bc
--- /dev/null
+++ b/packages/builders/scripts/testing/upgrade-reserve.js
@@ -0,0 +1,24 @@
+import { makeHelpers } from '@agoric/deploy-script-support';
+
+/** @type {import('@agoric/deploy-script-support/src/externalTypes.js').CoreEvalBuilder} */
+export const defaultProposalBuilder = async ({ publishRef, install }) =>
+  harden({
+    sourceSpec: '@agoric/vats/src/proposals/upgrade-reserve-proposal.js',
+    getManifestCall: [
+      'getManifestForReserveUpgrade',
+      {
+        contractRef: publishRef(
+          install(
+            '@agoric/inter-protocol/src/reserve/assetReserve.js',
+            '../../inter-protocol/bundles/bundle-reserve.js',
+          ),
+        ),
+      },
+    ],
+  });
+
+/** @type {import('@agoric/deploy-script-support/src/externalTypes.js').DeployScriptFunction} */
+export default async (homeP, endowments) => {
+  const { writeCoreEval } = await makeHelpers(homeP, endowments);
+  await writeCoreEval('upgrade-reserve', defaultProposalBuilder);
+};
diff --git a/packages/vats/src/proposals/upgrade-reserve-proposal.js b/packages/vats/src/proposals/upgrade-reserve-proposal.js
new file mode 100644
index 00000000000..792bbb56e57
--- /dev/null
+++ b/packages/vats/src/proposals/upgrade-reserve-proposal.js
@@ -0,0 +1,60 @@
+import { E } from '@endo/far';
+import { makeTracer } from '@agoric/internal/src/index.js';
+
+const trace = makeTracer('upgrade Vaults proposal');
+
+export const upgradeReserve = async (powers, options) => {
+  trace('Initiate Reserve contract upgrade');
+
+  const {
+    consume: {
+      reserveKit,
+      economicCommitteeCreatorFacet,
+      feeMintAccess: feeMintAccessP,
+      instancePrivateArgs: instancePrivateArgsP,
+    },
+  } = powers;
+
+  const {
+    options: { contractRef },
+  } = options;
+
+  const { adminFacet, instance } = await reserveKit;
+  
+  const instancePrivateArgs = await instancePrivateArgsP;
+  const privateArgs = instancePrivateArgs.get(instance);
+
+  const feeMintAccess = await feeMintAccessP;
+
+  const initialPoserInvitation = await E(
+    economicCommitteeCreatorFacet,
+  ).getPoserInvitation();
+
+  const newPrivateArgs = harden({
+    ...privateArgs,
+    feeMintAccess,
+    initialPoserInvitation,
+  });
+
+  await E(adminFacet).upgradeContract(contractRef.bundleID, newPrivateArgs);
+
+  trace('Reserve contract upgraded!');
+};
+
+export const getManifestForReserveUpgrade = (
+  { restoreRef },
+  { contractRef },
+) => ({
+  manifest: {
+    [upgradeReserve.name]: {
+      consume: {
+        reserveKit: true,
+        instancePrivateArgs: true,
+        feeMintAccess: true,
+        economicCommitteeCreatorFacet: true,
+      },
+    },
+  },
+  installations: { reserve: restoreRef(contractRef) },
+  options: { contractRef },
+});