diff --git a/.tugboat/settings.local.php b/.tugboat/settings.local.php
index 1b51d71..23f9721 100644
--- a/.tugboat/settings.local.php
+++ b/.tugboat/settings.local.php
@@ -11,6 +11,9 @@
   'port' => '3306',
   'namespace' => 'Drupal\\Core\\Database\\Driver\\mysql',
   'driver' => 'mysql',
+  'init_commands' => [
+    'isolation_level' => 'SET SESSION transaction_isolation=\'READ-COMMITTED\'',
+  ],
 );
 
 $settings['config_sync_directory'] = '../config/sync';