diff --git a/README.md b/README.md
index 840c393..29cb680 100644
--- a/README.md
+++ b/README.md
@@ -34,7 +34,7 @@ Brought to you by an inclusive community under the umbrella of Codeberg e.V., a
 - Customize HTML templates, static files and many others.
 
 
-**Shipped version:** 1.19.3-0~ynh3
+**Shipped version:** 1.19.3-0~ynh4
 
 ## Screenshots
 
diff --git a/README_fr.md b/README_fr.md
index ef92d5c..5d45472 100644
--- a/README_fr.md
+++ b/README_fr.md
@@ -34,7 +34,7 @@ Brought to you by an inclusive community under the umbrella of Codeberg e.V., a
 - Customize HTML templates, static files and many others.
 
 
-**Version incluse :** 1.19.3-0~ynh3
+**Version incluse :** 1.19.3-0~ynh4
 
 ## Captures d’écran
 
@@ -61,4 +61,4 @@ ou
 sudo yunohost app upgrade forgejo -u https://github.com/YunoHost-Apps/forgejo_ynh/tree/testing --debug
 ```
 
-**Plus d’infos sur le packaging d’applications :** <https://yunohost.org/packaging_apps>
\ No newline at end of file
+**Plus d’infos sur le packaging d’applications :** <https://yunohost.org/packaging_apps>
diff --git a/manifest.toml b/manifest.toml
index 53412ed..23cc914 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -5,7 +5,7 @@ name = "Forgejo"
 description.en = "Lightweight software forge"
 description.fr = "Forge logiciel légère"
 
-version = "1.19.3-0~ynh3"
+version = "1.19.3-0~ynh4"
 
 maintainers = ["Emmanuel Averty"]
 
diff --git a/scripts/upgrade b/scripts/upgrade
index ca8e1c0..5d1fe0e 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -32,6 +32,11 @@ ynh_script_progression --message="Ensuring downward compatibility..." --weight=1
 pushd "$install_dir"
     old_login_source_id=$(ynh_exec_as $app ./forgejo admin auth list | grep "YunoHost LDAP" | grep "via BindDN" | cut -f 1)
     if [ ! -z $old_login_source_id ]; then
+        ynh_print_info --message="Delete obsolete forgejo login source (LDAP via BindDN)"
+
+        # Ensure no user have this obsolete login source
+        ynh_psql_execute_as_root --database $db_name --sql "update public.user set login_source = 0, login_type = 0 where login_source = ${old_login_source_id}"
+
         # Delete old login source
         ynh_exec_as $app ./forgejo admin auth delete --id $old_login_source_id