diff --git a/dev/tool/src/index.ts b/dev/tool/src/index.ts
index df309a081d..f6ac27846e 100644
--- a/dev/tool/src/index.ts
+++ b/dev/tool/src/index.ts
@@ -21,7 +21,7 @@ import { createContributingClient } from '@anticrm/contrib'
 import core, { TxOperations } from '@anticrm/core'
 import { encode } from 'jwt-simple'
 import { Client } from 'minio'
-import { initWorkspace } from './workspace'
+import { initWorkspace, upgradeWorkspace } from './workspace'
 
 import contact, { combineName } from '@anticrm/contact'
 
@@ -148,6 +148,13 @@ program
     })
   })
 
+program
+  .command('upgrade-workspace <name>')
+  .description('upgrade workspace')
+  .action(async (workspace, cmd) => {
+    await upgradeWorkspace(mongodbUri, workspace, transactorUrl, minio)
+  })
+
 program
   .command('drop-workspace <name>')
   .description('drop workspace')
diff --git a/dev/tool/src/workspace.ts b/dev/tool/src/workspace.ts
index dc3e54f38a..542617671a 100644
--- a/dev/tool/src/workspace.ts
+++ b/dev/tool/src/workspace.ts
@@ -19,6 +19,7 @@ import core, { DOMAIN_TX, Tx } from '@anticrm/core'
 import { createContributingClient } from '@anticrm/contrib'
 import { encode } from 'jwt-simple'
 import { Client } from 'minio'
+import contact from '@anticrm/contact'
 
 import * as txJson from './model.tx.json'
 
@@ -57,3 +58,30 @@ export async function initWorkspace (mongoUrl: string, dbName: string, clientUrl
     await client.close()
   }
 }
+
+/**
+ * @public
+ */
+export async function upgradeWorkspace (mongoUrl: string, dbName: string, clientUrl: string, minio: Client): Promise<void> {
+  const client = new MongoClient(mongoUrl)
+  try {
+    await client.connect()
+    const db = client.db(dbName)
+
+    console.log('removing model...')
+    // we're preserving accounts (created by core.account.System).
+    const result = await db.collection(DOMAIN_TX).deleteMany({
+      objectSpace: core.space.Model,
+      modifiedBy: core.account.System,
+      _class: { $ne: contact.class.EmployeeAccount }
+    })
+    console.log(`${result.deletedCount} transactions deleted.`)
+
+    console.log('creating model...')
+    const model = txes.filter(tx => tx.objectSpace === core.space.Model)
+    const insert = await db.collection(DOMAIN_TX).insertMany(model as Document[])
+    console.log(`${insert.insertedCount} model transactions inserted.`)
+  } finally {
+    await client.close()
+  }
+}