diff --git a/test/app-update-test.js b/test/app-update-test.js
index e22f66c..714da2b 100644
--- a/test/app-update-test.js
+++ b/test/app-update-test.js
@@ -66,8 +66,8 @@ describe('Application update test', function () {
     var backups;
     it('can list the backups', function () {
         backups = cloudron.listAppBackups(appId, APP_ID + '@' + APP_NEW_VERSION);
-        assert(backups.length).to.be(1);
-        assert(backups[0].version).to.be(APP_OLD_VERSION);
+        assert.strictEqual(backups.length, 1);
+        assert.strictEqual(backups[0].version, APP_OLD_VERSION);
     });
 
     it('can restore app to previous version', function () {