diff --git a/typescript/abacus-deploy/hardhat.config.ts b/typescript/abacus-deploy/hardhat.config.ts
index a6a64e689..4c7b72a68 100644
--- a/typescript/abacus-deploy/hardhat.config.ts
+++ b/typescript/abacus-deploy/hardhat.config.ts
@@ -42,7 +42,7 @@ const domainSummary = async (deploy: CoreDeploy, domain: types.Domain) => {
       index: inboxCheckpointIndex.toNumber(),
     };
   };
-  summary.inboxes = deploy.remotes(domain).map(inboxSummary);
+  summary.inboxes = await Promise.all(deploy.remotes(domain).map(inboxSummary));
   return summary;
 };