diff --git a/pages/02.administer/15.admin_guide/55.upgrade/15.buster_bullseye/buster_bullseye_migration.md b/pages/02.administer/15.admin_guide/55.upgrade/15.buster_bullseye/buster_bullseye_migration.md
index a37df5f6..4463eda2 100644
--- a/pages/02.administer/15.admin_guide/55.upgrade/15.buster_bullseye/buster_bullseye_migration.md
+++ b/pages/02.administer/15.admin_guide/55.upgrade/15.buster_bullseye/buster_bullseye_migration.md
@@ -54,7 +54,7 @@ For this, go in Diagnosis (category Base system) or look at the footer of the we
 #### Run the migration to repair your python app
 After upgrading, your python apps should be unavailable cause their virtual env need to be rebuild.
 
-To do that you can run the pending migrations in `Webadmin > Update`. The apps below won't be automatically repaired, you need to force upgrade them manually instead with `yunohost app upgrade -f APP`.
+To do that you can run the pending migrations in `Webadmin > Update`. The apps below won't be automatically repaired, you need to force upgrade them manually instead with `yunohost app upgrade -F APP`.
 
 Apps which won't be automatically repaired and need a force upgrade:
  * calibreweb
@@ -83,7 +83,7 @@ If the service php7.3-fpm appears to be dead, you should upgrade your PHP apps l
 
 Test that your applications are working. If they aren't, you should try to upgrade them (it is also a good idea to upgrade them even if they are working anyway).
 
-If your app is broken and you were already with the last version, you can rerun the upgrade thanks to the `-f` option:
+If your app is broken and you were already with the last version, you can rerun the upgrade thanks to the `-F` option:
 ```
 yunohost app upgrade --force APP_NAME
 ```