diff --git a/src/infrastructure/storage/management/workflow/PhabricatorStorageManagementShellWorkflow.php b/src/infrastructure/storage/management/workflow/PhabricatorStorageManagementShellWorkflow.php
--- a/src/infrastructure/storage/management/workflow/PhabricatorStorageManagementShellWorkflow.php
+++ b/src/infrastructure/storage/management/workflow/PhabricatorStorageManagementShellWorkflow.php
@@ -29,7 +29,7 @@
     }
 
     return phutil_passthru(
-      'mysql --default-character-set=utf8 '.
+      'mysql --default-character-set=utf8mb4 '.
       '-u %s %C -h %s %C',
       $api->getUser(),
       $flag_password,