diff --git a/packages/cosmic-swingset/lib/ag-solo/reset-state.js b/packages/cosmic-swingset/lib/ag-solo/reset-state.js
index d35b04dccc4..b552f1e7530 100644
--- a/packages/cosmic-swingset/lib/ag-solo/reset-state.js
+++ b/packages/cosmic-swingset/lib/ag-solo/reset-state.js
@@ -1,7 +1,7 @@
 import path from 'path';
 import fs from 'fs';
 
-import { initSwingStore } from '@agoric/swing-store-simple';
+import { initSwingStore } from '@agoric/swing-store-lmdb';
 
 export default async function resetState(basedir) {
   const mailboxStateFile = path.resolve(
diff --git a/packages/cosmic-swingset/lib/ag-solo/start.js b/packages/cosmic-swingset/lib/ag-solo/start.js
index 55afa7e42a6..5d80c2f2197 100644
--- a/packages/cosmic-swingset/lib/ag-solo/start.js
+++ b/packages/cosmic-swingset/lib/ag-solo/start.js
@@ -10,7 +10,7 @@ import anylogger from 'anylogger';
 // import harden from '@agoric/harden';
 // import djson from 'deterministic-json';
 
-import { openSwingStore } from '@agoric/swing-store-simple';
+import { openSwingStore } from '@agoric/swing-store-lmdb';
 import {
   loadBasedir,
   buildCommand,
diff --git a/packages/cosmic-swingset/lib/launch-chain.js b/packages/cosmic-swingset/lib/launch-chain.js
index d54e75385e6..34e8182c0e8 100644
--- a/packages/cosmic-swingset/lib/launch-chain.js
+++ b/packages/cosmic-swingset/lib/launch-chain.js
@@ -11,7 +11,7 @@ import {
   getTimerWrapperSourcePath,
   getVatTPSourcePath,
 } from '@agoric/swingset-vat';
-import { openSwingStore } from '@agoric/swing-store-simple';
+import { openSwingStore } from '@agoric/swing-store-lmdb';
 
 const log = anylogger('launch-chain');
 
diff --git a/packages/cosmic-swingset/package.json b/packages/cosmic-swingset/package.json
index f7a96984f25..30faf87c40c 100644
--- a/packages/cosmic-swingset/package.json
+++ b/packages/cosmic-swingset/package.json
@@ -32,7 +32,7 @@
     "@agoric/sharing-service": "^0.0.3",
     "@agoric/spawner": "^0.1.1",
     "@agoric/store": "^0.0.3",
-    "@agoric/swing-store-simple": "^0.1.1",
+    "@agoric/swing-store-lmdb": "^0.2.1",
     "@agoric/swingset-vat": "^0.4.1",
     "@agoric/tendermint": "^4.1.3",
     "@agoric/weak-store": "^0.0.3",