diff --git a/back/services/cron.ts b/back/services/cron.ts
index 082aa207..0519c797 100644
--- a/back/services/cron.ts
+++ b/back/services/cron.ts
@@ -707,6 +707,7 @@ export default class CronService {
       }));
 
     if (isDemoEnv()) {
+      await writeFileWithLock(config.crontabFile, '');
       return;
     }
     await cronClient.addCron(regularCrons);