diff --git a/core/server/services/members/importer/index.js b/core/server/services/members/importer/index.js
index b4926de1c0..77a5e89407 100644
--- a/core/server/services/members/importer/index.js
+++ b/core/server/services/members/importer/index.js
@@ -205,7 +205,7 @@ const doImport = async ({membersBatch: members, allLabelModels, importSetLabels,
                         await deleteMemberKnex(stripeMember.id);
                     }
                 }, {
-                    concurrency: 10
+                    concurrency: 9
                 });
             }