diff --git a/multichain-testing/scripts/pod-readiness.ts b/multichain-testing/scripts/pod-readiness.ts
index a5a583d6946..315980e0ffc 100644
--- a/multichain-testing/scripts/pod-readiness.ts
+++ b/multichain-testing/scripts/pod-readiness.ts
@@ -1,5 +1,5 @@
 import { execa } from 'execa';
-import { sleep } from '../tools/sleep.ts';
+import { sleep } from '../tools/sleep.js';
 
 const checkPodsReadiness = async (): Promise<boolean> => {
   const { stdout } = await execa('kubectl', ['get', 'pods']);
diff --git a/packages/orchestration/src/exos/exo-interfaces.ts b/packages/orchestration/src/exos/exo-interfaces.ts
index 473403300df..41f321d11d1 100644
--- a/packages/orchestration/src/exos/exo-interfaces.ts
+++ b/packages/orchestration/src/exos/exo-interfaces.ts
@@ -1,6 +1,6 @@
 import type { IBCConnectionID } from '@agoric/vats';
 import type { Vow } from '@agoric/vow';
-import type { IcaAccount } from '../cosmos-api.ts';
+import type { IcaAccount } from '../cosmos-api.js';
 import type { ICAChannelAddressOpts } from '../utils/address.js';
 import type { ICQConnection } from './icq-connection-kit.js';