diff --git a/a3p-integration/proposals/z:acceptance/test-lib/utils.js b/a3p-integration/proposals/z:acceptance/test-lib/utils.js
index 607296794db..2f9b7e3d1bd 100644
--- a/a3p-integration/proposals/z:acceptance/test-lib/utils.js
+++ b/a3p-integration/proposals/z:acceptance/test-lib/utils.js
@@ -5,7 +5,7 @@ import {
   retryUntilCondition,
 } from '@agoric/client-utils';
 import { readFile, writeFile } from 'node:fs/promises';
-import { evalBundles, getIncarnation } from '@agoric/synthetic-chain';
+import { evalBundles, getDetailsMatchingVats } from '@agoric/synthetic-chain';
 import { networkConfig } from './rpc.js';
 
 export const stargateClientP = makeStargateClient(networkConfig, { fetch });
@@ -96,12 +96,26 @@ export const makeTimerUtils = ({ setTimeout }) => {
   };
 };
 
+/**
+ * This function solves the limitation of getIncarnation when multiple Vats
+ * are returned for the provided vatName and does not return the incarnation
+ * of the desired Vat (e.g. zcf-mintHolder-USDC)
+ * @param {string} vatName
+ * @returns {Promise<number>}
+ */
+const getIncarnationFromDetails = async vatName => {
+  const matchingVats = await getDetailsMatchingVats(vatName);
+  const expectedVat = matchingVats.find(vat => vat.vatName === vatName);
+  console.log('Vat: ', expectedVat);
+  return expectedVat.incarnation;
+};
+
 export const upgradeContract = async (submissionPath, vatName) => {
-  const incarnationBefore = await getIncarnation(vatName);
+  const incarnationBefore = await getIncarnationFromDetails(vatName);
   await evalBundles(submissionPath);
 
   return retryUntilCondition(
-    async () => getIncarnation(vatName),
+    async () => getIncarnationFromDetails(vatName),
     value => value === incarnationBefore + 1,
     `${vatName} upgrade not processed yet`,
     { setTimeout, retryIntervalMs: 5000, maxRetries: 15 },